Does Alma Mater matter? Evidence from Italy*
Does Alma Mater matter? Evidence from Italy*
Does Alma Mater matter? Evidence from Italy*
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Preliminary and incomplete, please do not quote<br />
<strong>Does</strong> <strong>Alma</strong> <strong>Mater</strong> <strong>matter</strong>? <strong>Evidence</strong> <strong>from</strong> Italy *<br />
By<br />
Giorgio Brunello (University of Padova, CESifo and IZA)<br />
Lorenzo Cappellari (Catholic University of Milan, CESifo, and IZA)<br />
19 January 2005<br />
Abstract<br />
In this paper we investigate in the Italian institutional context the effect<br />
of the attended university on earnings and employment prospects three years<br />
after graduation. We find that <strong>Alma</strong> <strong>Mater</strong> <strong>matter</strong>s significantly for the early<br />
labour market performance of Italian graduates. In particular, graduates <strong>from</strong><br />
universities located in the Northern part of the country experience three years<br />
after graduation significantly higher employment probabilities but only slightly<br />
higher nominal earnings than graduates <strong>from</strong> Southern universities. We also<br />
find that the mobility of Italian students across universities – and particularly<br />
<strong>from</strong> the South to the North - is limited. There is little support, however, to the<br />
view that mobility is hampered by liquidity constraints.<br />
JEL Classification: I20, I22<br />
Keywords: higher education, school quality, Italy<br />
* We are grateful to Maria De Paola, Francesca Gambarotto and Eliana La Ferrara for<br />
comments, and to Marco Spaltro for research assistance. The econometric analysis in this<br />
paper was carried out at the Adele Laboratory, ISTAT, Rome. The usual disclaimer applies.
Introduction<br />
<strong>Does</strong> the attended college affect the earnings and employment prospects<br />
of graduates? This question is particularly important for the households<br />
sending their offspring to college and paying part of the cost, and for the<br />
government, which in a number of countries runs most universities and needs<br />
to know whether and why some institutions may be delivering better outcomes<br />
than others.<br />
Spurred by the interest on the quality of education, a recent literature<br />
has investigated the labour market effects of college quality, mainly but not<br />
exclusively in the US. Black and Smith, 2003, and Brand and Halaby, 2003,<br />
review the key contributions. The main focus in this literature has been so far<br />
on comparing elite versus non – elite colleges, and the degree of selectivity<br />
has been measured either with the average SAT score of the incoming<br />
freshmen – in the US – or with the average A-level score of the intake of<br />
students – in the UK (see Chevalier and Gonlon, 2003). The basic finding of<br />
this literature is that college quality <strong>matter</strong>s for labour market outcomes.<br />
In this paper we investigate in the Italian institutional context the effect<br />
of the attended university on earnings and employment prospects three years<br />
after graduation. Since we cannot measure unambiguously selectivity, we<br />
focus instead on the location of the college, on the public/private divide and on<br />
observable measures of college quality. We find that <strong>Alma</strong> <strong>Mater</strong> <strong>matter</strong>s<br />
significantly for the early labour market performance of Italian graduates. In<br />
particular, graduates <strong>from</strong> universities located in the more developed Northern<br />
part of the country experience three years after graduation significantly higher<br />
employment probabilities but only slightly higher nominal earnings than<br />
graduates <strong>from</strong> Southern universities.<br />
We also find that the mobility of Italian students across universities –<br />
and particularly <strong>from</strong> the under-developed South to the more developed North<br />
- is limited. There is little support, however, to the view that mobility is<br />
hampered by liquidity constraints. Alternative explanations include regional<br />
price differentials, which reduce the earnings gap between the North and the<br />
1
South – and can even turn the gap into an advantage, and the possibility that<br />
uncovered differences are temporary. The finding that the expected returns to<br />
college are not significantly higher for the graduates of Northern universities<br />
combines with the higher cost of living, opportunity costs and tuition fees in<br />
the North to explain why so many Southern students still prefer to enrol in the<br />
South.<br />
We also find that going to a private university <strong>matter</strong>s especially for the<br />
probability of finding a job, but not always in a positive way. Heterogeneity in<br />
early labour market returns spread <strong>from</strong> public to private universities. When<br />
the attended private college yields negative employment and earnings gains,<br />
the question arises why households should enrol their offspring in such<br />
institutions at a higher tuition fees than in public universities. The natural<br />
explanation is that these losses are temporary, and turn into gains as labour<br />
market experience increases. Religious and cultural reasons, access to<br />
networks and leisure are additional and not necessarily mutually exclusive<br />
explanations.<br />
Available indicators of college quality explain some but not all the<br />
difference between private and public tertiary education. There is evidence that<br />
the pupil – teacher ratio, the size of the university – in terms of the number of<br />
enrolled students - and the proportion of female teachers affect in a<br />
statistically significant way either wages or employment or both. The location<br />
of the college also <strong>matter</strong>s, as universities located in the South usually deliver<br />
inferior outcomes.<br />
The policy implications clearly depend on whether the effects of<br />
measured college quality three years after graduation persist over time. While<br />
limited mobility <strong>from</strong> lower to higher performing universities suggests that<br />
some of these effects are temporary, better data than those available are<br />
required to answer this key question. In particular, it would be critical to re-<br />
interview graduates at regular times during their career, as in the UK Graduate<br />
Cohort Study, which repeats interviews three, six and eleven years since<br />
graduation.<br />
2
Assuming that the uncovered effects are at least in part permanent, they<br />
suggest that policies favouring the diffusion of universities in the Italian<br />
territory need not be farsighted, as employment probabilities are significantly<br />
higher with larger – and older - institutions, possibly because of their<br />
entrenched reputation in the labour market. Policies promoting equal<br />
opportunity and a higher percentage of female professors have ambiguous<br />
labour market effects, negative on male graduates and positive on female<br />
graduates. Finally, and conditional on measured quality and on local labour<br />
market effects, Southern universities perform less satisfactorily than the<br />
universities in the rest of the country. Understanding why this is the case is an<br />
important area of policy evaluation.<br />
The paper is organized as follows. Section 1 provides some institutional<br />
background; Section 2 discusses the empirical approach; Section 3 introduces<br />
the data and Section 4 presents the results. Conclusions follow.<br />
1. Institutional background<br />
By international standards, Italy has 10 graduates out of 100 individuals<br />
aged 25 to 64, significantly lower than the OECD average of 15. Relatively low<br />
attainment is matched by a relatively low rate of return, 6.5 percent per year<br />
of college education, compared to 11.8 percent in the main developed<br />
economies (see OECD, 2003). Assuming a downward sloping demand for<br />
college education and an upward sloping supply, the combination of low<br />
attainment and low returns suggests that the relative demand for college<br />
graduates in Italy is relatively low by international standards 1 .<br />
Reasons for relative low demand could be that the Italian industrial<br />
structure is biased against higher education, or that the perceived quality of<br />
tertiary education is low, or both. According to the OECD, Italy spends less<br />
than the major developed economies for tertiary education. In the year 2000,<br />
the average expenditure per student was 8065 US dollars, compared to 8373<br />
dollars in France, 10898 dollars in Germany, 9657 dollars in the UK and 20358<br />
dollars in the US. Low expenditure is partly due to the fact that average pay in<br />
1 See Brunello, Comi and Lucifora, 1999, and Checchi and Jappelli, 2004, and Checchi, 2002.<br />
3
universities is low and partly to a higher than average students to teacher ratio<br />
(22.4 compared to the OECD average of 16.5 2 ). Moreover, Italy has a<br />
relatively low share of private universities, which enrol only 6.4 percent of<br />
college students, compared to 12 in the OECD average.<br />
Only 10.9 percent of the budget comes <strong>from</strong> tuition fees. See Perotti,<br />
2002, for a very good discussion of the funding of Italian universities.<br />
2. Empirical strategy<br />
The recent literature on the estimation of college quality (wage-) effects<br />
highlights a few issues inherent to such exercise. Specifically, Black and Smith<br />
(2003) discuss the pitfalls that a standard log-wage regression could lead to,<br />
and how matching estimators can solve/mitigate those issues. First, there is<br />
the issue of selection on unobservables, omitted variable bias in the language<br />
of linear regression: as long as factors that influence both treatment receipt (in<br />
their case college quality) and the outcome (earnings) are omitted <strong>from</strong> the<br />
estimating model, resulting effects are biased and inconsistent. Second, there<br />
is the issue of common support, multicollinearity in the language of linear<br />
regression: in order for the effect to be identified the variability of the<br />
treatment over the sample must not be already captured by other covariates in<br />
the model, which is achieved when there are cells defined by the intersection<br />
of the covariates in which both treated and non-treated individuals are<br />
observed. Black and Smith stress an important implication of this property: the<br />
effect estimated by a linear regression is identified non-parametrically only in<br />
the common support, while outside the common support it is a parametric<br />
projection of the effect estimated using observations in common support.<br />
Thirdly, and finally, they point to the issue of linear conditioning on<br />
observables, functional form misspecification in the language of linear<br />
regression: even if all the relevant personal attributes are controlled for, an<br />
omitted variable bias could emerge if they enter the estimating equation with<br />
an inappropriate functional form. The Black and Smith approach is to resort to<br />
2 Notice that Italy has a very low ratio in primary and secondary education, as discussed in detail by Brunello and<br />
Checchi, 2004. Perotti, 2002, contains an interesting comparison between the Italian and the British higher education<br />
systems.<br />
4
a (propensity score) matching estimator. As explained in their paper, such an<br />
approach: a) assumes that there is no selection on unobservables problem; b)<br />
‘…does not solve the support problem… (page 5)’; and c) solves the linear<br />
conditioning issue, since rather than assuming that the expected value of the<br />
outcome conditional on the observables is a linear function of the observables,<br />
makes a fully non-parametric comparison of mean outcomes between treated<br />
and non-treated individuals in the common support.<br />
In this paper we take a different estimating approach, which we illustrate<br />
by focussing on wages as the outcome of interest (we also study employment<br />
probabilities and we detail later our methodology in that case). Let<br />
wi=αw+ΣfΣcd cf iθ cf +xi’γw+ui (1)<br />
be the log-monthly wage for individual i (i=1…N), a linear function of the<br />
college-faculty cluster <strong>from</strong> which she graduated (d cf i) and observable<br />
attributes (xi). The vector of observables includes controls for gender, region of<br />
employment, labour market experience parental background in terms of<br />
occupation and education, the final graduation mark, the type of high school<br />
attended (whether generalist or technical/professional) and the marks reported<br />
in the high school graduation exam. Given the inclusion of detailed parental<br />
background, these latter variable are likely to proxy the impact of ability. Most<br />
importantly, we allow for interactions between parental education and<br />
occupations, on the one hand, and marks and school types, on the other.<br />
Therefore, we allow all regressors related to personal attributes to enter the<br />
model non-linearly, which might result in an attenuation of the risks of<br />
misspecifying functional form. As for the first problem discussed in Black and<br />
Smith (2003), we assume, as they do, selection on observables, and specify a<br />
rather extended list of observables. Finally, we can not identify effects on<br />
college faculty dummies for which there is no common support.<br />
Regression (1) serves as the first step in our procedure and allows us to<br />
predict log-monthly earnings by college/faculty clusters. In the second step,<br />
we take an approach a-là- Card and Krueger (1991) and analyse the<br />
5
determinants of college/faculty wage effects. Specifically, let q cf be the<br />
estimate of θ cf <strong>from</strong> (1). Let q be the vector stacking these estimates: they<br />
are the mean wages by college-faculty clusters. In the second step of our<br />
procedure, we estimate the effect of several dimension of college quality by<br />
regressing estimated wage effects on college quality measures derived <strong>from</strong><br />
published sources or other measures of college heterogeneity, plus college and<br />
faculty fixed effects. We employ a Weighted Least Squares, using weights<br />
proportional to the (inverse) of var(q) to account for the fact that our<br />
dependent variables are estimates <strong>from</strong> the first stage.<br />
As we said above, we also analyse the impact of <strong>Alma</strong> <strong>Mater</strong> on<br />
employment probabilities. In that case, equation (1) is substituted by a probit<br />
equation, the dependent variable scoring one for the employed and zero<br />
otherwise. 3 From such a probit equation we can estimate the employment<br />
probability (and its variance) for each college/faculty cluster, which we then<br />
employ as dependent variable (and weight) in the second step regression.<br />
3. The Data<br />
The National Statistical Office (ISTAT) carries out on a regular basis a<br />
statistical survey – the “Indagine statistica sull’inserimento professionale dei<br />
laureati” - on the transition <strong>from</strong> college to work of a representative sample of<br />
Italian graduates. The last available wave interviews individuals who graduated<br />
in 1998 three years after completion of the degree, in 2001. The survey covers<br />
school curriculum, labour market experience in the three years after<br />
graduation, job search activities, household and individual information. We<br />
match these data with the information on college quality disaggregated by field<br />
of study and provided by ISTAT for the academic year 1996-7 4 .<br />
We focus our analysis on the effects on the college on the probability of<br />
being employed three years after graduation and on net monthly earnings in<br />
the job held at the time of the interview. Employment in the survey includes all<br />
3<br />
In this case, the conditioning set excludes labour market experience, while regions of work are substituted by regions<br />
of birth.<br />
4<br />
ISTAT, Lo stato dell’università, several issues. Since the publicly available micro-data do not include the university<br />
the interviewed individual graduated <strong>from</strong>, we carried out the matching at the ADELE ISTAT laboratory in Rome.<br />
6
paid jobs, including apprenticeship contracts 5 . About 4 percent of the currently<br />
employed are on a training contract – which includes post-graduate education.<br />
This percentage raises to close to 44 percent among those not currently<br />
working. Monthly earnings in 2001 are in euros and net of taxes and social<br />
security contributions 6 . Average earnings in the sample are 1140,1 euros per<br />
month, with a standard deviation of 422.8, and range <strong>from</strong> a minimum of<br />
103,2 € to a maximum of 4389,8 €. On the other hand, the average probability<br />
of being employed three years after graduation is 0.664, with a standard<br />
deviation of 0.472.<br />
Table 1 shows average pay and employment probability by gender, type<br />
of college – public or private – and area where the college is located. On<br />
average, male graduates earn about 25 percent more than females, and are<br />
more likely to have a paid job three years after graduation. Having graduated<br />
<strong>from</strong> a private college yields a close to 10 percent wage premium, and a close<br />
to 20 percent premium in the probability of employment. Finally, graduation<br />
<strong>from</strong> a college located in the Northwest yields a 20 percent wage premium and<br />
a close to 50 percent higher employment probability than having graduated in<br />
a Southern college. The regional wage premium falls considerably <strong>from</strong> 20 to<br />
8.3 if we compare individuals who graduated <strong>from</strong> a college in the Northwest<br />
and work in the same area with individuals who graduated in the South but<br />
work in the Northwest.<br />
Table 1. Average earnings and employment probability by gender, type of<br />
college and college area<br />
Average<br />
Average<br />
monthly earnings employment probability<br />
Male 1249,6 0,716<br />
Female 1040,0 0,622<br />
Private college 1239,5 0,793<br />
Public college 1132,3 0,655<br />
College located in Northwest Italy 1218,2 0,773<br />
5 The relevant question is: “Are you now – at the time of the survey – on a paid job? “ Only a very small minority of<br />
those not currently employed were employed in the week before the interview. Since we do not have information on<br />
wages, we drop these individuals <strong>from</strong> the sample.<br />
6 Earnings in the publicly available data are provided in ranges rather than as a continuous variable. All our<br />
computations based on continuous variables were carried out at the ADELE ISTAT laboratory in Rome.<br />
7
College located in Northeast Italy 1124,7 0,733<br />
College located in Central Italy 1121,0 0,631<br />
College located in Southern Italy 1054,6 0,513<br />
Needless to say, these averages are affected by individual<br />
characteristics, the college and the field of study. Table 2 reports average<br />
earnings and employment probabilities in 16 fields of study, which correspond<br />
to different faculties.<br />
Average earnings are highest for graduates in Medicine, who face on the<br />
other hand the lowest employment probability, and lowest for graduates in<br />
Foreign Languages. Figure 1 and Figure 2 show that both earnings and<br />
employment probabilities vary substantially within each field of study by<br />
college. The within-field of study variation in earnings – measured by the<br />
coefficient of variation - is highest for the graduates in Medicine, Sociology and<br />
Statistics. In the former field, a graduate <strong>from</strong> Verona and Padova earn per<br />
month close to 100 percent more than a graduate <strong>from</strong> Pisa and L’Aquila.<br />
Table 2. Average earnings and employment probability by field of study<br />
Average monthly earnings Average<br />
Employment probability<br />
Agricultural studies (AG) 1127,2 0,636<br />
Architecture (AR) 1077,3 0,696<br />
Economics and Business (EC) 1163,9 0,752<br />
Pharmacy (PH) 1174,1 0,788<br />
Law (LA) 962,9 0,479<br />
Engineering (EN) 1298,8 0,854<br />
Humanities (HU) 949,5 0,589<br />
Foreign languages (FO) 910,6 0,632<br />
Medicine (ME) 1531,7 0,201<br />
Veterinary (VE) 1118,3 0,605<br />
Psychology (PS) 966,4 0,686<br />
Teachers college (TE) 956,4 0,670<br />
Natural sciences (SC) 1073,2 0,607<br />
Political Science (PO) 1104,8 0,735<br />
Statistics (ST) 1191,2 0,740<br />
Sociology (SO) 1048,8 0,582<br />
8
In the latter field, a graduate <strong>from</strong> Florence earns on average 84 percent<br />
more per month than a graduate <strong>from</strong> Messina. Moreover, the average<br />
monthly earnings of a graduate in Economics <strong>from</strong> Bocconi University, a<br />
private institution, are about 60 percent higher than the earnings of a graduate<br />
in the same field <strong>from</strong> the University of Benevento, at the bottom of the list.<br />
Turning to employment probabilities, it is always the case that these are<br />
lowest for graduates of Southern colleges, independently of whether they look<br />
for a job in the North or in the South of the country. For example, a graduate<br />
in Engineering <strong>from</strong> the University of Trieste has a probability of employment<br />
after three years close to 1, compared to less than 0.6 for a graduate <strong>from</strong><br />
Potenza, in the deep South.<br />
Figure 1. Within field variation in average earnings<br />
average log earnings<br />
2500<br />
2000<br />
1500<br />
1000<br />
500<br />
TOPOL<br />
TO<br />
TO<br />
TO<br />
TOPOL<br />
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NO<br />
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TO TO<br />
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TO<br />
AL<br />
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GE<br />
GE<br />
GE<br />
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MIBOC<br />
MIPOL<br />
MICAT<br />
GE<br />
MICAT MISTA<br />
MISTA<br />
MISTA<br />
MISTA<br />
GE<br />
MICAT<br />
MIPOL<br />
MISTA<br />
MISTA<br />
MICAT<br />
MICAT<br />
MICAT MISTAMISTA MISTA<br />
BSCAT<br />
MICAT GE<br />
GE<br />
GE<br />
GE<br />
GE<br />
BSCAT BSCAT<br />
PV<br />
PV<br />
BS<br />
BG BS<br />
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MIULM BG<br />
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PD<br />
TN VR VR VE<br />
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PD<br />
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PR BO<br />
PR PR<br />
PR<br />
BO<br />
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BO<br />
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BO<br />
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PR PR MO BO TS FE<br />
BO<br />
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MO TS BO PR<br />
FO<br />
UR<br />
UR<br />
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UR<br />
UR<br />
SI<br />
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PG AN FI<br />
PG<br />
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PG PI<br />
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SI<br />
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PG PG FI<br />
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MC<br />
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ROSAP<br />
PG<br />
ROSAP ROSAP<br />
VT<br />
ROSAP<br />
PG<br />
ROSAP PG<br />
ROSAP<br />
ROSAP<br />
ROSAP<br />
ROSAP PG<br />
ROSAP<br />
ROSAP<br />
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ROTOR<br />
ROTOR<br />
ROLUM<br />
ROTRE ROLUI ROLUI<br />
ROTOR<br />
CAS ROSAP<br />
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NAFED ROTRE<br />
CAS<br />
ROTRE<br />
CASROTRE<br />
BV<br />
ROTOR<br />
ROTOR<br />
NAFED<br />
SA<br />
CH<br />
NAFED<br />
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NAFED NAFED<br />
AQ<br />
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CH BA<br />
PS<br />
NAPAR<br />
SA<br />
NAFED<br />
BA<br />
FG<br />
PS TE<br />
AQ NASEC NAFEDNAFED SA<br />
NASEC SA<br />
NAORS<br />
AQ AQNAFED<br />
CB NAORI CH<br />
CB<br />
NAORS<br />
NAFED NAORI<br />
NAORI CB<br />
SA BA<br />
NAFED SA<br />
TE<br />
BA<br />
SA<br />
NAORS<br />
SA<br />
PS<br />
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BA<br />
BAPOL<br />
CS<br />
PT<br />
LE<br />
BA<br />
PA<br />
RC<br />
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LE<br />
BA<br />
PA<br />
PT<br />
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CS<br />
BA<br />
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CZ LE<br />
CZ<br />
LE<br />
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LE<br />
CS<br />
PA<br />
PA<br />
CA CT<br />
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CT<br />
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SS<br />
CA<br />
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SS<br />
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CT<br />
PA<br />
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MS SS<br />
MS<br />
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CT PA<br />
PA CA CT<br />
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CT<br />
CA<br />
PA<br />
PA MS CA<br />
MS<br />
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CA<br />
SS<br />
SS<br />
SS CA<br />
SS<br />
FG<br />
NAFED<br />
AG AR EC PH LA EN HU FO ME VE PS TE SC PO ST SO<br />
field<br />
Note: see the legend in the Appendix<br />
9<br />
VR<br />
PD<br />
BO<br />
NASEC<br />
TO BS FI<br />
MS TS<br />
NAFED<br />
MISTA<br />
TN<br />
UR<br />
ROSAP<br />
SA<br />
NAFED
average employment probability<br />
Figure 2. Within field of study variation in employment<br />
1<br />
.8<br />
.6<br />
.4<br />
.2<br />
0<br />
FE<br />
MISTA<br />
BO<br />
MIPOL VE<br />
PD<br />
PC<br />
TO TOPOL FI<br />
ROSAP<br />
FI GE<br />
PI<br />
CT<br />
UD PA<br />
NAFED<br />
VR BA PS<br />
NAFED<br />
RC<br />
PG PT<br />
VT<br />
PA<br />
NO<br />
TO<br />
VC<br />
TOPOL<br />
TO<br />
TO<br />
GE AL<br />
TO<br />
TO<br />
TO<br />
TO<br />
TO<br />
TO<br />
TO AL<br />
TO AL<br />
GE<br />
SI<br />
TS<br />
CO MISTA MIPOL UD AN PV<br />
MICAT MO PD<br />
ROLUI<br />
ROTOR BSCAT MICAT<br />
PC<br />
ROSAP BAPOL<br />
PI<br />
MIBOC BS PV PD MO BO<br />
ROSAP<br />
TN<br />
FI GE MICAT VR<br />
BS PV<br />
BG UD<br />
MIULM<br />
VR PR TN<br />
PG<br />
CT<br />
PV<br />
PG<br />
PR<br />
ROTRE MC FE NAFED MS AQ BG<br />
MICAT UD<br />
ROTOR VE<br />
FE<br />
PI SI<br />
LE<br />
BV PR<br />
FI<br />
MO FI<br />
SS<br />
BO<br />
PD TN<br />
CT PI<br />
PG<br />
BO UR<br />
ROSAP<br />
PD<br />
CASNAFED<br />
BA<br />
MISTA PV<br />
UR<br />
VR<br />
MISTA<br />
PD<br />
TS<br />
PA TS CS<br />
BO UR<br />
SA PA<br />
TS PV TS PR BO FO<br />
PG AN<br />
BA<br />
PG<br />
CH<br />
ROTRE<br />
CAS<br />
BO VE FI ROSAP SS<br />
NASEC<br />
NAPAR SA ROLUI MC<br />
NAFED CT SS<br />
PA PR<br />
PI<br />
LE<br />
CS<br />
MS MICAT FE<br />
GE VE MISTA<br />
PD PR<br />
FE PI SI<br />
MS<br />
CB<br />
MS<br />
ROTRE<br />
MC PS<br />
CT<br />
SS<br />
PS<br />
MISTA MO UR ROSAP SA NAORI PI<br />
FG<br />
CS<br />
BS PT<br />
UR CH CA<br />
ROSAP<br />
NASEC CA<br />
MC<br />
TN PA FI SS PA PG<br />
GE ROTOR<br />
PG<br />
BA PA<br />
SI CS CT<br />
MS<br />
GE<br />
PA<br />
ROTOR BO CA CZ SS<br />
PI NAORI BA<br />
NAORS NAFED<br />
ROSAP<br />
BA<br />
MIBIC MC MS SA CH<br />
ROTOR SI<br />
NAFED<br />
NAFED<br />
MS CT<br />
FG<br />
GE AQ<br />
LE MISTA<br />
SA TE<br />
CA PT AN TS<br />
PI<br />
NAORS BS FI<br />
LE BO PD PV<br />
PA<br />
SS<br />
CB<br />
NAFED ROSAP VR<br />
NAFED MO<br />
MS<br />
PG BA<br />
PR<br />
FE<br />
NASEC CT<br />
ROCAT CA<br />
MIULM<br />
MICAT MISTA MISTA<br />
GE VR AQ UD<br />
BSCAT<br />
BO PD TS ROSAP<br />
BO PD<br />
PR BSCAT GE PV PI FI BO<br />
PG UR MICAT UR<br />
TN<br />
PD<br />
MO<br />
FI FE SI FI<br />
MISTA PG ROSAP<br />
ROLUI<br />
AQ PR<br />
ROTOR PV BA CT<br />
MC GE SA<br />
BA CB SS<br />
CAS BO PD ROLUM<br />
CT TE<br />
FI BA<br />
UR ROSAP NAFED CZ<br />
ROTRE<br />
AQ SI<br />
PA<br />
PA SS<br />
PI<br />
TS LE<br />
NAORS CA<br />
SA<br />
NAORI<br />
NAFED<br />
NAFED LE CS PA<br />
CT MS MS<br />
SS<br />
AN SA CA<br />
MS<br />
CA<br />
MS<br />
TN<br />
UR<br />
ROSAP<br />
SA<br />
NAFED<br />
AG AR EC PH LA EN HU FO ME VE PS<br />
field<br />
TE SC PO ST SO<br />
Note: see the legend in the Appendix<br />
Next, we compare the average earnings and employment probabilities of<br />
graduates of public and private colleges – by restricting attention to<br />
economics, which include a few private universities. Figures 3 and 4 show that<br />
private colleges do better on average than public colleges, both for earnings<br />
and for employment. Some private universities, however, perform worse in<br />
terms of earnings and at least as well in terms of employment as top public<br />
institutions.<br />
10
Figure 3. Average monthly earnings in public and private colleges - Economics<br />
average monthly earnings<br />
1600<br />
1400<br />
1200<br />
1000<br />
800<br />
PV<br />
BG<br />
TO<br />
BS<br />
VE<br />
UD TN<br />
VR<br />
GE<br />
NO<br />
TS<br />
ROTOR<br />
PG<br />
ROSAP ROTRE<br />
PR SS<br />
NAPAR MC AN<br />
BA<br />
MO BO<br />
PI SI<br />
NAFED<br />
FG<br />
PA FI<br />
UR PS<br />
LE<br />
MS SA<br />
NASEC CT<br />
CS<br />
CAS<br />
CB<br />
BV<br />
0 1<br />
private university<br />
monthly earnings of graduates in economics<br />
Note: see the legend in the Appendix<br />
Figure 4. Average employment probability in public and private colleges<br />
average monthly earnings<br />
1<br />
.8<br />
.6<br />
.4<br />
.2<br />
0<br />
NO<br />
BS PV<br />
ROTRE MC<br />
UD BG PR VR TN<br />
ROTOR TO VE<br />
MO<br />
GE<br />
BV PI SI<br />
FI<br />
ROSAP CAS<br />
TS<br />
BO UR<br />
PG AN<br />
BA<br />
NAPAR SA<br />
NAFED CT<br />
PA<br />
SS<br />
LE<br />
MS<br />
CB<br />
CS PS<br />
FG<br />
NASEC<br />
0 1<br />
private university<br />
employment probability of graduates in economics<br />
Note: see the legend in the Appendix<br />
For instance, the graduates of Roma Luiss, a private college, earn on<br />
average about the same as the graduates of Roma Tre and Roma La Sapienza,<br />
but less than the graduates of Rome Tor Vergata, a public institution located in<br />
the same city. On the other hand, the graduates of Bocconi University earn on<br />
average more than the graduates of other Milanese universities, both public<br />
and private.<br />
11<br />
MICAT CO<br />
ROLUI PC<br />
MIBOC<br />
CO<br />
MIBOC<br />
MICAT<br />
ROLUI<br />
PC
Both private and public colleges generate heterogeneous outcomes in the<br />
labour market. Part of this heterogeneity could fade away over time, as<br />
graduates settle in their jobs, but part could depend on measurable differences<br />
in inputs and outputs. Table 3 illustrates some of these differences, separately<br />
for public and private colleges.<br />
Table 3. Differences in inputs and outputs, by type of college<br />
12<br />
Public college Private college<br />
Year when the faculty was established 1932 1958<br />
Student / teacher ratio 41.69 25.78<br />
Percentage of students not completing their degree in the<br />
requested time<br />
38.61 38.42<br />
Number of students 4605 3698<br />
Percentage of graduates over enrolled students 7.54 11.76<br />
Note: the year of establishment is coded as 1800 if the college was established in 1800 or before.<br />
The table shows that private universities tend to be younger, smaller,<br />
and have a significantly lower ratio of students to teachers. While the average<br />
age of professors is about the same, the percentage of female professors is<br />
slightly lower, and the percentage of graduates over enrolled students<br />
significantly higher. The Data Appendix shows how these indicators vary across<br />
colleges and fields of study.<br />
The list of indicators in Table 3 cannot be considered as exhaustive. An<br />
indicator that is missing in our data is the average peer effect. This is an<br />
important measure if we believe, as Epple and Romano, 1998, that school<br />
quality critically depends on the average quality of enrolled students. Another<br />
missing indicator is a measure of network effects, which might play an<br />
important role if private colleges provide access to better networks, and if<br />
these networks are important in the search of a good job, as suggested for<br />
Italy by Pellizzari, 2003. Finally, we miss information of teacher quality. The<br />
recent literature on school quality (see Hanushek, 2002, for a survey), clearly<br />
emphasizes this variable as key to explain school performance.
4. Results<br />
In the first step regressions (REPORT IN THE APPENDIX), we fit<br />
individual earnings and employment probabilities separately by gender on 411<br />
college by field of study dummies, individual experience, experience squared,<br />
number of siblings, cohort of birth dummies, type of job (whether the current<br />
job is part time or full time), dummies for additional years in college after the<br />
required years, dummies for the region of current residence, individual<br />
graduation marks – relative to the highest attainable mark – type of school<br />
before college, graduating marks in upper secondary education, family<br />
background – measured by the education and occupation of both parents when<br />
the individual was 14 years of age – and interactions between education before<br />
college and family background. The maintained hypothesis is that performance<br />
at school before college, family background and their interactions fully capture<br />
unobserved individual ability, which affects earnings as well as selection into<br />
employment.<br />
4.1 College effects on wages and employment<br />
We interpret the estimated coefficients of the 411 dummies as the net<br />
impact of college and field of study on individual earnings and employment<br />
three years after graduation. Under our maintained assumption, these<br />
estimates are consistent. We distinguish the net <strong>from</strong> the gross impact,<br />
because the college and field of study can affect some of the controls, such as<br />
labour market experience, performance in college, type of job, region of<br />
residence and actual time to complete the degree. We also compute the gross<br />
impact of college and field by re-estimating the first step regressions after<br />
excluding such controls. To save space, we present some results based on the<br />
gross effect in the Appendix.<br />
The region of residence three years after graduation does not necessarily<br />
coincide with the region where the college was located, as individuals migrate<br />
to the areas of the country where they can locate better matches. Table 4<br />
illustrates the mobility flows across the four macro areas of the country. As<br />
13
expected, individuals completing a degree in the Centre or in the South are<br />
more likely than individuals in the North to relocate and work in another<br />
macro-area, typically the North West, where many college jobs are located. In<br />
spite of these mobility flows, the percentage of individuals who currently reside<br />
in the same area where they went to college is at least equal to three quarters<br />
of the population of graduates.<br />
Table 4. Mobility flows among the four macro areas of Italy<br />
Residence Residence Residence Residence<br />
North West North East Centre<br />
South<br />
College North West 93.52 3.47 1.65 1.36<br />
College North East 12.30 81.87 3.86 1.97<br />
College Centre 6.95 3.95 75.91 13.18<br />
College South 9.17 3.34 6.87 80.62<br />
Note: the numbers in the table are percentages, which add up to 100 by row.<br />
We disentangle the contributions of the field of study and the university<br />
to the wage and employment effects by regressing the estimated net effects<br />
on separate field of study and college dummies. In order to have sufficient<br />
observations for each university, we restrict our attention to the institutions<br />
with at least five faculties. The college dummies in these regressions measure<br />
the effect of each university on earnings and employment, conditional on the<br />
field of choice and on the individual effects controlled in the first stage. As<br />
shown in Figures 5 and 6, the variation of college effects is substantial, both<br />
for wages and for employment.<br />
14
Figure 5. College effects on earnings, by gender<br />
males<br />
425<br />
277<br />
FE<br />
CA<br />
SS<br />
MC<br />
MS<br />
MO<br />
CS<br />
PV<br />
PA<br />
TS<br />
PR<br />
NAFED<br />
SA<br />
PD<br />
ROTOR<br />
181 236<br />
females<br />
Wage effects<br />
SI<br />
ROSAP<br />
15<br />
LE<br />
BO<br />
UR<br />
BA<br />
TN<br />
FI<br />
MICAT<br />
CT<br />
MISTA<br />
Figure 6. College effects on employment probability, by gender<br />
males<br />
.7 MO TN<br />
PV TO<br />
.6<br />
.5<br />
.4<br />
CA<br />
MS<br />
CS<br />
CT NAFED<br />
LE<br />
PA<br />
ROSAP<br />
PI SI<br />
PG<br />
SA<br />
.2 .4 .6 .8<br />
females<br />
Employment effects<br />
BA<br />
ROTOR<br />
SS<br />
AQ<br />
PR<br />
UR<br />
MC<br />
GE<br />
FI<br />
BO<br />
TS<br />
FE<br />
PI<br />
PD<br />
PG<br />
GE<br />
MISTA<br />
AQ<br />
TO<br />
MICAT<br />
Consider first wages. The difference between the highest and the lowest<br />
college effect is higher than 25 percent for both genders. For instance, male
graduates <strong>from</strong> the University of Trieste, in the North-East, earn 53 percent<br />
more on their current job three years after college than graduates <strong>from</strong><br />
Cosenza, in the South of the country. Female graduates <strong>from</strong> Torino, in the<br />
North West, earn about 29 percent more than graduates <strong>from</strong> Ferrara, in the<br />
North-East. There is also a significant difference in the earnings of graduates<br />
<strong>from</strong> the largest universities in Rome – La Sapienza and Tor Vergata – and the<br />
largest colleges in Milan – Statale and Cattolica. For instance, male graduates<br />
<strong>from</strong> La Sapienza earn three years after graduation 16 percent less than male<br />
graduates <strong>from</strong> Statale.<br />
If we use the mean wage effects for males and females to divide the<br />
diagram in four quadrants, we discover some interesting heterogeneity. While<br />
Northern colleges tend to perform better than Southern colleges, there are<br />
exceptions: Ferrara and Modena, for instance, do well for males but poorly for<br />
females. On the other hand, Lecce is located in the outward quadrant, above<br />
both means. On average, Northern wage effects are 6.7 and 3.4 percent<br />
higher that Southern wage effects for maels and females respectively.<br />
Turning to employment probabilities three years after college, the<br />
difference across universities is large, with graduates <strong>from</strong> Turin enjoying a<br />
probability higher than 70 percent and graduates <strong>from</strong> Messina experiencing<br />
probabilities lower than 50 percent, independently of the region of current<br />
residence. Compared to earnings, the difference in employment probabilities<br />
for the graduates of the large universities located in Rome and Milan is<br />
negligible for males but large for females. Furthermore, the segregation of<br />
Southern colleges in the lowest quadrant near the origin is much more marked<br />
than in the case of wages. On average, Northern employment effects are 25<br />
and 32 percent higher that Southern wage effects for maels and females<br />
respectively.<br />
Figures 7 and 8 plot wage and employment effects by gender. A natural<br />
reading here is that the points in the figures lie on different demand curves,<br />
which express the labour market trade-off between earnings and employment<br />
probabilities.<br />
16
Figure 7. Wage and employment effects, by college. Males<br />
males<br />
wage effects<br />
450<br />
400<br />
350<br />
300<br />
250<br />
MS<br />
PA<br />
CA<br />
SS<br />
NAFED LE<br />
CT<br />
MC<br />
AQ<br />
GE<br />
TS<br />
MISTA<br />
.4 .5 .6 .7<br />
employment effects<br />
Males<br />
FE<br />
SA<br />
PG<br />
UR<br />
CS<br />
17<br />
ROTOR<br />
BA<br />
PR<br />
PD PI<br />
BO SI<br />
FI<br />
ROSAP<br />
TN<br />
MICAT TO<br />
PV MO<br />
Figure 8. Wage and employment effects, by college. Females<br />
females<br />
wage effects<br />
240<br />
220<br />
200<br />
180<br />
CA<br />
MS<br />
CT<br />
PG<br />
PI<br />
SI<br />
ROSAP<br />
NAFED<br />
SA<br />
ROTOR<br />
PA<br />
CS<br />
TO<br />
AQ<br />
GE MISTA<br />
.2 .4 .6 .8<br />
employment effects<br />
Females<br />
LE<br />
BA<br />
TN<br />
UR<br />
MO<br />
MC<br />
SS<br />
PR<br />
FI<br />
BO<br />
TS<br />
FE<br />
PV<br />
PD<br />
MICAT<br />
Focusing on males, the wage and employment effects in Figure 7 are<br />
delimited by a demand curve close to the origin and connecting the Southern<br />
colleges of Messina, Palermo, Catania, Cagliari and Cosenza, and by an
outward demand curve connecting several universities of the North, Trento,<br />
Torino, Milano Catholic, Modena, Pavia and one in the Centre, Florence. A<br />
similar reading is possible for female graduates in Figure 8. If we rank<br />
universities on the basis of the demand curve they lie upon, the North-South<br />
divide emerges quite clearly. This divide is driven by employment probabilities<br />
rather than by wages.<br />
If students were perfectly mobile across universities, and the private<br />
costs of graduating <strong>from</strong> each institution were homogeneous across the<br />
country, we would expect these large differences in college – specific labour<br />
market returns to be washed away. Mobility of university students, however, is<br />
limited. Our survey provides information both on the region of residence before<br />
going to college and on the region where the college is located. As shown by<br />
Table 5, there is very little mobility across macro-regions, not only in the<br />
Northern and Central areas, where many high performing universities are<br />
located, but also in the South, where universities are among the worst<br />
performing in the sample. More in detail, students who resided in the South<br />
before college either remain there for college (73.5%) or move to the nearby<br />
Centre (18.8%): less than 8% move to the North 7 .<br />
Table 5. Mobility flows among the four macro areas of Italy, before college and<br />
during college<br />
College College College College<br />
North West North East Centre South<br />
Before College North West 90.78 7.39 1.52 0.30<br />
Before College North East 3.79 93.41 2.50 0.31<br />
Before College Centre 0.88 4.79 93.69 0.64<br />
Before College South 3.56 4.04 18.86 73.54<br />
Note: the numbers in the table are percentages, which add up to 100 by row.<br />
These number cover, however, some interesting heterogeneity within<br />
macro-areas. In the South, for instance, the percentage of students remaining<br />
in their region to go to college is higher than 80 percent in Sicily and Sardinia<br />
and close to 40 percent in Calabria.<br />
7 The differences in performance across universities are net of local labour market effects, because we control for region<br />
of residence dummies in the first step when estimating net wages and employment effects.<br />
18
How do we explain the limited mobility flows between macro-areas? One<br />
natural possibility is that low mobility depends on family background and on<br />
liquidity constraints. According to this story, the internal rate of return of<br />
graduating <strong>from</strong> a Northern college is higher than in the South, but the higher<br />
costs prevent many Southerners <strong>from</strong> enrolling in the North. Studying in a<br />
university located in the North is likely to be expensive for a Southern student<br />
for a number of reasons. First, tuition is higher. Even though fees are not high<br />
by international standards, Northern colleges have used to a much larger<br />
extent than other universities in the country the opportunity to raise tuition in<br />
the second part of the 1990s above the centrally established ceiling (Law<br />
122/94). This and the endogenous selection of students to college have implied<br />
that average tuition in 1995 was about 50 percent higher in Northern than in<br />
Southern public universities – 511 € versus 326 € at current prices (see<br />
Silvestri et al, 1996). Second, both opportunity and living costs – including<br />
housing – are higher in the North. Third and last, income support provided by<br />
the national and local government is considered to be largely inadequate to<br />
eliminate liquidity constraints, as documented by Silvestri et al, 1996. [NON<br />
SAREBBE MALE AVERE QUALCHE DATO SUI COSTI DI VIVERE FUORI CASA<br />
ALL’UNIVERSITA]<br />
If liquidity constraints had played a significant role in hampering the<br />
mobility of students <strong>from</strong> the South to the North, we would expect to find that<br />
inter-regional mobility is much lower for students belonging to less educated<br />
and less wealthy households. Surprisingly enough, this is not the case. If we<br />
replicate Table 5 separately for individuals with “good” and “poor” family<br />
background at age 14 – good background being defined when the father was<br />
an entrepreneur, a manager, a high ranked director, a teacher or a high<br />
ranked white collar, and bad background when the father was in a low paying<br />
occupation – there is no difference worth noticing – see Table 6 below. The<br />
percentage of students in our dataset residing in the South who went to<br />
college in the South is 72.99 percent if <strong>from</strong> a good family background and<br />
74.12 percent if <strong>from</strong> a bad background. On the other hand, the percentage of<br />
students residing in the South before college who moved to the North for<br />
19
college is 8.22 among those with good background and 6.94 percent among<br />
those with bad background. These differences remain small even when we<br />
measure background with parental education 8 .<br />
Table 6. Mobility flows among the four macro areas of Italy, before college and<br />
during college.<br />
Good bakground<br />
College College College College<br />
North West North East Centre South<br />
Before College North West 91.37 6.77 1.55 0.31<br />
Before College North East 4.49 92.50 2.73 0.28<br />
Before College Centre 1.15 4.64 93.48 0.73<br />
Before College South 3.99 4.23 18.79 72.99<br />
Bad background<br />
College College College College<br />
North West North East Centre South<br />
Before College North West 90.06 8.17 1.49 0.29<br />
Before College North East 2.97 94.46 2.24 0.33<br />
Before College Centre 0.53 4.99 93.45 0.53<br />
Before College South 3.10 3.84 18.94 74.12<br />
We conclude that liquidity constraints cannot be the key reason of the<br />
observed low mobility flows of students <strong>from</strong> the South to the North. The<br />
alternative explanation is that the expected excess return <strong>from</strong> going to a<br />
Northern college is not sufficiently high to trigger mobility flows <strong>from</strong> the<br />
South. One key reason for this is that regional price differentials are known to<br />
be substantially lower in the South. If many Southern graduates work and live<br />
in the same area they went to college, the relatively low nominal earnings gap<br />
with respect to graduates <strong>from</strong> Northern colleges can be more than<br />
compensated by lower consumer prices. Another reason is that the observed<br />
college differences in wages and employment probabilities three years after<br />
graduation are simply temporary effects, which are washed away over time, as<br />
individuals settle down in the labour market and in permanent jobs.<br />
8 Results available <strong>from</strong> the authors upon request.<br />
20
<strong>Evidence</strong> that the effects of college quality of earnings and employment<br />
probabilities wane over labour market careers is discussed by Warren, Hauser<br />
and Sheridan, 2002, and Brand and Halaby, 2003, for the US. Employers use<br />
credentials, including college quality, as a signal of skills at labour market<br />
entry, but as individuals age this signal loses importance relative to other<br />
sources of information, such as direct screening. Since mobility is triggered by<br />
expected differences in lifetime earnings profiles, university – specific<br />
temporary differences may be not sufficient to reallocate enrolment <strong>from</strong> the<br />
South to the North in the presence of cost differentials. In a way, the low<br />
mobility shown by Table 4 could simply be telling us that the internal rate of<br />
return to going to a Northern or a Southern college is not very different, once<br />
the entire profile of lifetime earnings is properly considered.<br />
Support for this alternative explanation comes <strong>from</strong> the 2002 wave of the<br />
Survey on the Income and Wealth of Italian Households (SHIW), carried out by<br />
the Bank of Italy, which includes information on the college of graduation. The<br />
sample of graduates is much smaller than the one we are using in this paper,<br />
but has the advantage of covering individuals of different age rather than only<br />
labour market entrants. We define a dummy for the young – aged <strong>from</strong> 25 to<br />
34 – and for the adult – aged <strong>from</strong> 35 to 55, and regress both monthly<br />
earnings and employment probabilities on individual controls, area of<br />
residence, field of study dummies and age dummies. We also interact both age<br />
group dummy with a dummy equal to 1 if the college of graduation was<br />
located in the North and to zero otherwise. Our key results are presented in<br />
Table 7.<br />
They show that monthly earnings do not differ in a significant way with<br />
the area where the college of graduation was located. Employment<br />
probabilities, however, differ, because the young age group <strong>from</strong> Northern<br />
colleges enjoys a significantly higher probability of employment. More<br />
importantly for our purpose, however, is the finding that this relative<br />
advantage disappears among adults.<br />
Table 7. Monthly wages and employment probabilities , by age group and<br />
region where the college is located. Weighted least squares<br />
21
Monthly wages Employment<br />
probabilities<br />
Young * College North .129 (.117) .751** (.312)<br />
Adult .339*** (.091) 1.475*** (.214)<br />
Adult * College North .044 (.082) .430 (.351)<br />
Nobs 518 870<br />
Note: each regression includes gender, region of residence and field of study dummies. The wage<br />
regression also includes a part-time dummy. The young age group in the Centre and South in the<br />
baseline. One, two and three stars for coefficients statistically significant at the 10, 5 and 1 percent level<br />
of confidence. Heteroskedasticity consistent standard errors.<br />
These alternative stories can explain why Southern students do not move<br />
to Northern colleges, but do they account for the differences within macro-<br />
areas, which seem to be particularly large for the students of Sicily and<br />
Calabria? The figures above show that male graduates of the university of<br />
Cosenza (CS) earn much less than other graduates, including those <strong>from</strong> other<br />
Southern universities. Female graduates of the same university also do badly,<br />
even if not as bad in relative terms as males. While this relatively poor<br />
performance can help explaining the larger mobility flows, an important<br />
additional reason is that the largest university in the region was established<br />
fairly recently, in the seventies. Before that, students <strong>from</strong> Calabria had to<br />
move elsewhere to study, and moving for college education was part of the<br />
social custom, contrary to the Sicilian experience, where universities where<br />
established in the nineteenth century.<br />
4.2 Private and public universities<br />
Why do earnings and employment probabilities three years after<br />
graduation vary depending on the college the individual graduated <strong>from</strong>? The<br />
natural answer is that colleges differ in quality, and that this quality is priced<br />
by the labour market. One important dimension of college quality is whether<br />
the university is public or private. We investigate this dimension by replacing<br />
the college dummies in the second step regression either with a dummy equal<br />
to 1 if the university is private and to zero otherwise or with the interactions of<br />
this dummy with field of study dummies. By so doing, we allow the effects of<br />
22
the private college dummy to vary with the field of study 9 . These effects can<br />
be identified because there is within-field variation in college status – either<br />
public or private.<br />
Table 8 presents the results for the net wage effects, separately for<br />
males and females. The gross effects are reported for the sake of comparison<br />
in the Appendix. Since the dependent variable is in logs, we can interpret the<br />
estimated coefficients as percentage changes. We find that going to a private<br />
university has a positive effect on graduate earnings, but that this effect is<br />
statistically significant only for female graduates. Behind the average effect<br />
there is substantial heterogeneity. Male graduates of private universities in the<br />
fields of Law and Political Science earn close to 20 percent more than<br />
graduates of public colleges in the same fields. The opposite occurs for male<br />
graduates in the fields of Medicine and Natural Sciences, who lose between 35<br />
and 6 percent with respect to their colleagues <strong>from</strong> public colleges.<br />
Table 8. The effects of private college dummies on average wage effects<br />
Private college dummies Males Males Females Females<br />
Private universities .043<br />
.059**<br />
(.041)<br />
(.026)<br />
Economics .009<br />
.111***<br />
(.070)<br />
(.034)<br />
Law .221*<br />
.041<br />
(.115)<br />
(.079)<br />
Humanities .012<br />
.085*<br />
(.057)<br />
(.043)<br />
Medicine -.353***<br />
.113*<br />
(.054)<br />
(.068)<br />
Natural Sciences -.060*<br />
-.114**<br />
(.031)<br />
(.048)<br />
Political Science .212***<br />
.016<br />
(.060)<br />
(.060)<br />
Nobs 391 391 397 397<br />
R Squared .97 .97 .97 .97<br />
Note : each regression includes faculty dummies. One, two and three stars for statistically significant parameters at<br />
the 10, 5 and 1 percent level of confidence.<br />
Turning to female graduates, going to a private university yields a 11<br />
and 8.5 percent gain in the fields of Economics; Medicine and the Humanities<br />
respectively, and a 11.4 percent loss in the field of Natural Sciences. Table 9<br />
9 Notice that there are some fields of study – Engineering for example – which are only available in public universities.<br />
We pool together some fields – Psychology, Foreign Languages and Education with Humanities, Agricultural Studies<br />
with Natural Sciences – in order to have a sufficient number of observations in the second step estimation.<br />
23
shows that going to a private college unambiguously increases employment<br />
probabilities, especially for female graduates.<br />
Table 9. The effects of private college dummies on average employment effects<br />
Private college dummies Males Males Females Females<br />
Private universities .099**<br />
.125***<br />
(.041)<br />
(.039)<br />
Economics .252***<br />
.143***<br />
(.034)<br />
(.049)<br />
Law .105<br />
.239***<br />
(.066)<br />
(.044)<br />
Humanities .175***<br />
.069<br />
(.037)<br />
(.062)<br />
Medicine -.183***<br />
-.120***<br />
(.020)<br />
(.025)<br />
Natural Sciences -.023<br />
.262***<br />
(.047)<br />
(.038)<br />
Political Science -.004<br />
.125***<br />
(.093)<br />
(.048)<br />
Nobs 347 347 380 380<br />
R Squared<br />
Note : see Table 8<br />
.88 .89 .92 .92<br />
The gain for males is particularly significant in the field of Economics, and<br />
turn into a large loss in the field of Medicine. The increase in the probability for<br />
females is highest in the fields of Law and Natural Sciences, and turns again<br />
into a loss in the field of Medicine.<br />
Our results suggest that going to a private college makes a difference,<br />
especially for the probability of finding a job after graduation. Since this<br />
difference is not always positive, however, there is also heterogeneity in the<br />
performance of private universities. Such heterogeneity emerges also when we<br />
differentiate the effect of private colleges on earnings and employment not by<br />
faculty but by college location – the North and the rest of the country. As<br />
shown in Table 10, earnings gains are marginally significant for female<br />
graduates of Central and Southern private universities, and employment gains<br />
are large and significant only for the graduates of Northern private universities.<br />
Table 10. The net effects of private college dummies on average earnings and<br />
employment probabilities.<br />
Private college dummies Wages Males Wages<br />
Females<br />
24<br />
Employment<br />
Males<br />
Employment<br />
Females
North .025<br />
(.097)<br />
Rest of the country .027<br />
(.094)<br />
25<br />
-.015<br />
(.050)<br />
.067*<br />
(.040)<br />
.080<br />
(.092)<br />
.047<br />
(.087)<br />
.154***<br />
(.057)<br />
.072<br />
(.049)<br />
Nobs 391 397 347 380<br />
Note : see Table 8<br />
Finally, Table 11 presents the results of second step regressions with<br />
private college dummies, conditional on controls for the field of study. There<br />
are 9 private universities in our sample of 68 colleges, for which we have<br />
second step estimates of wage and employment effects. We find evidence that<br />
the graduates of Castellanza, Roma LUMSA and Milano Bocconi enjoy<br />
significant earnings gains – ranging <strong>from</strong> 11 to 37 percent - with respect to the<br />
graduates of public universities. However, the male graduates <strong>from</strong> Roma<br />
Catholic and the female graduates of Brescia Catholic earn on average 15 to 35<br />
percent less than the graduates of public colleges. On the other hand, the<br />
effect on employment probability of going to a private college is positive and<br />
larger for the graduates of the private universities in Milan and neighbouring<br />
areas – Brescia and Castellanza - and negative both for the male and female<br />
graduates of Roma Catholic and for the male graduates of Roma LUMSA.<br />
Table 11. The effects of private college dummies on earnings and employment<br />
Private college dummies Males Wages Males Females Females<br />
Employment Wages Employment<br />
Piacenza -.023<br />
-.023<br />
-.051 .190**<br />
(.026) (.042) (.044) (.090)<br />
Roma Luiss .095 .150*** .023 .186***<br />
(.146) (.043) (.056) (.065)<br />
Milano Bocconi .114*** .217*** .130*** .240***<br />
(.015) (.025) (.014) (.015)<br />
Milano Cattolica .042 .121*** .062 .236***<br />
(.047) (.040) (.042) (.023)<br />
Castellanza .184*** .217*** .160***<br />
-<br />
(.015) (.025) (.014)<br />
MIlano IULM .090<br />
-<br />
.128*** .248***<br />
(.058)<br />
(.045) (.029)<br />
Roma Cattolica -.353*** -.183*** .113* -.120***<br />
(.053) (.020) (.068) (.025)<br />
Brescia Cattolica .060 .241*** -.149*** .284***<br />
(.056) (.036) (.028) (.030)<br />
Roma LUMSA .369*** -.167*** .154*** .092***<br />
(.029) (.046) (.033) (.036)<br />
Nobs 391 347 397 380<br />
R Squared .97 .89 .97 .92
Note : see Table 8.<br />
4.3 College quality<br />
Is the difference made by private colleges due to observable measures of<br />
college quality? We capture quality with the (log) pupil – teacher ratio, the<br />
classical indicator used in the related literature (see Hanushek, 2002), but also<br />
control for the (log) number of students in the college and field of study and<br />
the year of establishment of the college and field of study. Since selection at<br />
entry is rare in Italian universities – and restricted to some fields of study such<br />
as Medicine – a larger size, conditional on the pupil-teacher ratio, can be<br />
interpreted as a measure of the relative attractiveness of the university and<br />
field. Similarly, if the year of establishment is a proxy of prestige, we should<br />
find that later establishment affects negatively labour market outcomes. If, on<br />
the other hand, it proxies a younger and more dynamic faculty – the<br />
correlation between year of establishment and the average age of professors in<br />
our sample is -.24, we should expect a positive relationship. We add to the<br />
regressors in Tables 8 and 9 the selected measures of college quality and<br />
present the estimates in Tables 12 and 13, limited to the case of net effects.<br />
Table 12. The effects of private college dummies on average log earnings<br />
Males Males Females Females<br />
Log pupil - teacher ratio -.185***<br />
-.214***<br />
-.128***<br />
-.128***<br />
(.049)<br />
(.052)<br />
(.036)<br />
(.039)<br />
Log number students .282***<br />
.288***<br />
.258***<br />
.258***<br />
(.029)<br />
(.030)<br />
(.022)<br />
(.022)<br />
Year of establishment .004***<br />
.004***<br />
.004***<br />
.004***<br />
(.000)<br />
(.000)<br />
(.000)<br />
(.000)<br />
Private college -.152*<br />
-.000<br />
(.090)<br />
(.057)<br />
Nobs 311 311 303 303<br />
R squared<br />
Note : see Table 8<br />
.99 .99 .99 .99<br />
Table 13. The effects of private college dummies on average employment probability<br />
Males Males Females Females<br />
Log pupil - teacher ratio -.087***<br />
-.070***<br />
-.113***<br />
-.092***<br />
(.020)<br />
(.020)<br />
(.021)<br />
(.022)<br />
Log number students .081***<br />
.078***<br />
.082***<br />
.079***<br />
(.014)<br />
(.014)<br />
(.014)<br />
(.014)<br />
Year of establishment .0001***<br />
.0001***<br />
.0001***<br />
.0001***<br />
(.000)<br />
(.000)<br />
(.000)<br />
(.000)<br />
Private college .114***<br />
.170***<br />
(.032)<br />
(.041)<br />
Nobs 294 294 295 295<br />
R squared<br />
Note : see Table 8<br />
.93 .93 .95 .95<br />
26
Since both the pupil – teacher ratio and the number of students are in<br />
logs, the number in the tables can be interpreted as elasticities. We find<br />
evidence of a negative and statistically significant relationship between the<br />
pupil-teacher ratio and the college by field of study wage and employment<br />
effects. The elasticity ranges <strong>from</strong> -.128 to -.214 for earnings and <strong>from</strong> -.070<br />
to -.113 for employment probability. The faculties in private colleges of our<br />
sample have on average a pupil – teacher ratio which is close to 50 percent<br />
lower than the ratio in the faculties of public universities. Our estimates<br />
suggests that this gap translates in a 5 to 10 percent positive gap for earnings<br />
and in a 5 percent positive gap for employment.<br />
There is also evidence of a positive and statistically significant<br />
relationship between log size and the wage and employment effects, with<br />
elasticities close to .25 for earnings and to .08 for employment. In our sample,<br />
the faculties of private colleges are about 23 percent smaller than the faculties<br />
in public universities. Therefore, this effect partially cancels out the effect of<br />
the pupil – teacher ratio. One possible objection is that larger faculties may<br />
have more students who are staying longer than required to complete the<br />
degree (fuori corso). In this case, size is not necessarily an indicator of good<br />
quality. In regressions not displayed here, we control for the percentage of<br />
“fuori corso” students, but this variable is never statistically significant, nor<br />
does it change the effect of size.<br />
Finally, we find that the younger the faculty the higher the wage and<br />
employment effect. In particular, a faculty 10 years younger generates a 0.04<br />
percent increase in earnings and a 0.001 percent increase in the probability of<br />
employment. Therefore, these effects are small.<br />
The differences in pupil – teacher ratio, size and year of establishment<br />
explains an important part of the difference in wage effects between private<br />
and public institutions. The private college dummy remains, however, positive<br />
and statistically significant in the case of the employment effects, suggesting<br />
that other factors are at play.<br />
27
4.4 Family background<br />
In the previous two sections we have allowed the college by field of study<br />
effects to vary by gender. Another possibility is that they vary by family<br />
background, ad example because of the complementarities between college<br />
quality and labour market networks. We classify family background into “poor”<br />
and “good”, depending on the profession of the father when the surveyed<br />
individual was aged 14. In particular, we define family background as “good”<br />
when the father was a professional, a manager, a teacher or a high ranked<br />
white collar, and as “poor” when the father was in agriculture, a blue collar, a<br />
self-employed or a low ranking white collar.<br />
We run separate first stage regressions for good and poor background<br />
and retrieve the estimated college by field of study effects. In the second<br />
stage, we ask whether having a “good” family background can improve the<br />
labour market effects of going to a private college. Tables 14 and 15 report the<br />
results separately for wages and employment.<br />
We find that individuals with a good family background gain significantly<br />
in terms of their employment prospects if they graduate <strong>from</strong> a private<br />
university. There is little evidence that they gain in terms of entry wages,<br />
however. On the other hand, individuals with poor background who graduate<br />
<strong>from</strong> a private college do not gain significantly – in a statistical sense – in<br />
terms of higher entry wages or of a higher probability of employment. Overall,<br />
there is evidence that the returns to a private college are higher for those who<br />
come <strong>from</strong> a “better” family background, because they have a significantly<br />
better probability of employment.<br />
Table 14. The effects of private college dummies on average wage effects<br />
Private college dummies Poor<br />
Poor<br />
Good<br />
Good<br />
Background Background Background Background<br />
Private universities .066<br />
.043<br />
(.041)<br />
(.033)<br />
Economics .143***<br />
.106<br />
(.048)<br />
(.067)<br />
Law .328**<br />
.084<br />
(.132)<br />
(.081)<br />
Humanities .064<br />
.065<br />
(.059)<br />
(.048)<br />
28
Medicine .004<br />
-.358***<br />
(.071)<br />
(.043)<br />
Natural Sciences -.181<br />
-.009<br />
(.125)<br />
(.075)<br />
Political Science .067<br />
.063<br />
(.062)<br />
(.067)<br />
Nobs 400 400 404 404<br />
R Squared<br />
Note : see Table 8.<br />
.97 .97 .97 .97<br />
One reason why people enrol in private colleges and schools is because<br />
they provide access to a potentially valuable network. We find some evidence<br />
that the quality of this network and the quality of the network before going to<br />
college are complements in the production of labour market returns.<br />
Table 15. The effects of private college dummies on average employment effects<br />
Private college dummies Poor<br />
Poor<br />
Good<br />
Good<br />
Background Background Background Background<br />
Private universities .051<br />
.116***<br />
(.044)<br />
(.039)<br />
Economics .204***<br />
.165***<br />
(.035)<br />
(.026)<br />
Law .123***<br />
.154***<br />
(.026)<br />
(.051)<br />
Humanities .030<br />
.084<br />
(.080)<br />
(.055)<br />
Medicine -.087***<br />
-.205***<br />
(.015)<br />
(.026)<br />
Natural Sciences .141**<br />
.245***<br />
(.065)<br />
(.030)<br />
Political Science .059<br />
.138**<br />
(.066)<br />
(.065)<br />
Nobs 378 378 377 377<br />
R Squared<br />
Note : see Table 8.<br />
.91 .91 .92 .92<br />
Finally, we differentiate the effect of a private college in Table 16 and<br />
find that the wage and employment effects are higher for those with better<br />
background if they graduate <strong>from</strong> a milanese private university and lower if<br />
they graduate <strong>from</strong> a roman university.<br />
Table 16 The effects of private college dummies on earnings and employment<br />
Private college dummies Wages<br />
Good<br />
Background<br />
Wages<br />
Bad<br />
Background<br />
29<br />
Employment<br />
Good<br />
Background<br />
Employment<br />
Bad<br />
background<br />
Piacenza -.030 .015 .198*** .095
(.060) (.021) (.067) (.070)<br />
Roma Luiss -.042 .301** .224***<br />
-<br />
(.031) (.136) (.020)<br />
Milano Bocconi .207*** .096*** .192*** .226***<br />
(.026) (.018) (.020) (.018)<br />
Milano Cattolica .129*** .102* .193*** .130***<br />
(.042) (.056) (.042) (.047)<br />
Castellanza .298*** .316***<br />
-<br />
.146***<br />
(.026) (.018)<br />
(.018)<br />
MIlano IULM .169*** .147*** .315*** 255***<br />
(.061) (.025) (.028) (.029)<br />
Roma Cattolica -.358*** .004 -.204*** -.087***<br />
(.046) (.072) (.026) (.016)<br />
Brescia Cattolica -.048<br />
-.110 .203*** .245***<br />
(.058) (.122) (.025) (.044)<br />
Roma LUMSA .108** .135*** .075** .119***<br />
(.054) (.035) (.038) (.040)<br />
Nobs 404 400 377 378<br />
R Squared<br />
Note : see Table 8.<br />
.97 .96 .92 .91<br />
Paper to be completed<br />
30
References<br />
Black and Smith, 2003 : How robust is the evidence on the effects of college<br />
quality? <strong>Evidence</strong> <strong>from</strong> matching, NBER working paper<br />
Brand and Halaby, 2003<br />
Chevalier A and G. Conlon, 2003, <strong>Does</strong> it pay to attend a prestigious<br />
university, Centre for the Economics of Education, London School of<br />
Economics, DP<br />
OECD Education at a glance 2003<br />
Brunello, C., Comi, S. and Lucifora C. 2001 : The Returns of Education in<br />
Italy: a New Look at the <strong>Evidence</strong>, in Colm Harmon, Ian Walker and NW<br />
Nielsen (eds.), The Returns to Education in Europe, Edward Elgar,<br />
Checchi and Jappelli, 2003, School Choice and Quality, IZA DP No. 828<br />
Checchi, D. (2003). The Italian educational system: family background and<br />
social stratification, mimeographed, Università di Milano.<br />
Perotti, R. 2002 The Italian University System: Rules vs. Incentives,<br />
mimeographed, Bocconi University<br />
Card and Krueger (1991), <strong>Does</strong> School Quality Matter? Journal of Political<br />
Economy<br />
31
Data Appendix<br />
Figure A1: Enrolled students per teacher, by field of study and college<br />
enrolled students per teacher 1996-97<br />
300<br />
200<br />
100<br />
50<br />
10<br />
SA<br />
MS<br />
FG<br />
SA<br />
MS<br />
NAFED<br />
ROSAP BO<br />
AL<br />
MISTA CT<br />
SS<br />
TO<br />
TO<br />
TO<br />
TO<br />
TO<br />
TO TO<br />
GE<br />
GE<br />
TO<br />
TOPOL<br />
NO<br />
AL<br />
GE<br />
TOPOL GE TO<br />
GE<br />
VC<br />
TO<br />
AL<br />
GE<br />
MISTA<br />
GE<br />
GE<br />
MISTA<br />
GE<br />
CO MISTA<br />
MISTA GE<br />
GE<br />
MISTA<br />
MC<br />
PR<br />
PI<br />
MICAT UR<br />
PD<br />
PD<br />
BO PG TS<br />
MISTA<br />
FE FI<br />
BO<br />
MO MC PV<br />
PD<br />
TN<br />
UR<br />
PR<br />
MICAT<br />
VR<br />
PI<br />
FO PD<br />
VE<br />
PG<br />
BG<br />
MICAT UD AN<br />
FI<br />
FI PV<br />
BG<br />
PV<br />
MIPOL<br />
TN SI FI<br />
BO<br />
SI<br />
MIBOC<br />
MIPOL<br />
PG<br />
BO PI<br />
MO<br />
PD AN UR VR<br />
UR<br />
VE MICAT TS<br />
VE<br />
TS<br />
BO FE PI BO VE<br />
PI<br />
AN FI<br />
PV<br />
MICAT<br />
MICAT<br />
PV<br />
VR PV<br />
MISTA<br />
PD<br />
BO PD PR MO UD FI<br />
PG<br />
PI<br />
PI<br />
PD<br />
PD<br />
UD<br />
TS TS<br />
PR<br />
BO<br />
TS<br />
BO<br />
MIULM<br />
PR<br />
BO<br />
FE<br />
FE<br />
MC FE FI<br />
UR<br />
BO UR<br />
PG<br />
PI<br />
PD<br />
PC<br />
FI<br />
PG<br />
MO FI<br />
SI BO PG<br />
ROCAT VR PV<br />
PV<br />
PD TS<br />
TN<br />
TS<br />
PR AN<br />
PI<br />
PI FI<br />
MO MC PR FE PI SI FI<br />
SI<br />
PG<br />
ROSAP<br />
ROSAP<br />
ROSAP<br />
NAFED<br />
ROTOR CAS ROTOR<br />
ROTRE<br />
ROTRE<br />
ROSAP NAFED<br />
ROSAP NAFED<br />
BV ROSAP ROTOR NAFED<br />
NAFED<br />
ROSAP ROSAP<br />
NAFED VT<br />
ROTOR<br />
ROLUI<br />
ROLUI<br />
ROSAP<br />
PG<br />
ROTOR NAFED<br />
ROTORROLUI<br />
NAFED<br />
TE<br />
LE CB<br />
PA<br />
FG BA<br />
NAPAR<br />
CZ<br />
PA<br />
SS<br />
CA<br />
NAORI<br />
AQ SS<br />
PS CT<br />
CA<br />
CT<br />
BA<br />
PS<br />
SS<br />
PS<br />
PA<br />
MS<br />
MS<br />
CS<br />
SA SA<br />
NAFED<br />
SA BA SS BO BA<br />
BA<br />
BAPOL<br />
NAORI MS<br />
PA<br />
CB<br />
CT LE CT<br />
CT<br />
SS LE LE CA<br />
RC<br />
AQ CS MS CH CS TE<br />
BA<br />
LE<br />
CH PT<br />
CS<br />
PA<br />
PA<br />
PA<br />
MS<br />
MS<br />
PA<br />
CT<br />
CT<br />
CA<br />
NAFED AQ<br />
BA PT<br />
PA<br />
NAORI NASEC AQ BA<br />
BA<br />
CH PA<br />
SA PA CT<br />
CA<br />
MS CA CT<br />
MS<br />
CA<br />
SS<br />
SS<br />
AG AR EC PH LA EN HU FO ME VE PS TE SC PO ST SO<br />
faculty<br />
Figure A2: log number of students, by college and field of study<br />
log number of students 1996-97<br />
40000<br />
30000<br />
20000<br />
10000<br />
0<br />
ROSAP<br />
ROSAP<br />
NAFED<br />
MIPOL<br />
MISTA<br />
BA<br />
MISTA<br />
TOPOL<br />
MISTA<br />
TO<br />
TO<br />
TO<br />
TOPOL<br />
TO<br />
GE GE<br />
MISTA<br />
GE<br />
TO<br />
GE<br />
MISTA<br />
GE<br />
TO<br />
TO GE GE<br />
TO<br />
NO CO MISTA AL<br />
GE GE GE<br />
MISTA<br />
GE TO<br />
VC<br />
TO<br />
AL AL<br />
MISTA<br />
MIPOL<br />
PD<br />
MIBOC<br />
VE<br />
MICAT<br />
PD<br />
MICAT PD<br />
VR<br />
VE PV PD<br />
MICATMICAT BG PV TN<br />
VE VE<br />
MICAT PD<br />
TN PV PV PD<br />
MIULM<br />
PV<br />
PD<br />
BG<br />
ROCAT PV<br />
PV<br />
MICAT<br />
PC<br />
PV<br />
VR<br />
PD<br />
VR<br />
VR<br />
TN<br />
PD<br />
BO<br />
BO<br />
BO<br />
PD<br />
PR BO<br />
PR<br />
MO<br />
BO BO TS<br />
MO TS<br />
BO<br />
BO<br />
UD TS<br />
MO UD TS PR TS<br />
PR TS<br />
UD<br />
BO<br />
PR<br />
PR BO<br />
PD<br />
MO TS<br />
TS PR<br />
MO<br />
BO<br />
BO<br />
UR FE<br />
UR<br />
FE<br />
FO<br />
FE<br />
FE<br />
FE<br />
FE UR UR UR BO<br />
UR<br />
ROSAP<br />
NAFED<br />
SA<br />
ROSAP<br />
ROSAP<br />
NAFED<br />
FI<br />
ROSAP<br />
PI<br />
ROSAP<br />
NAFED NAPAR PI FI<br />
NAFED ROSAP<br />
NAFED<br />
SA PI FI MC<br />
FI<br />
PG AN FI SA PI<br />
SI<br />
ROTOR NAORI<br />
AQ<br />
SA FI<br />
ROTOR PG AN MC SI PG<br />
FI<br />
CAS<br />
ROTOR SA<br />
NASEC<br />
PI<br />
ROTRE<br />
PG PI<br />
ROTRE<br />
NAFED<br />
FI PI ROSAP<br />
NAFED FI<br />
ROLUI BV ROSAPROLUI<br />
MC PI FI<br />
PI<br />
PI<br />
SI PG PG<br />
PG VT<br />
NAFED ROTOR<br />
SA NAFED NAORI<br />
ROTOR<br />
AN SI MC<br />
PG FI<br />
NAORI AQ NAFED PG PI<br />
AQ ROTOR AN SA SI<br />
ROLUI<br />
AQ<br />
MS<br />
PA<br />
BA MS<br />
BAPOL<br />
TE BA<br />
PS LE<br />
PA<br />
PA<br />
BA<br />
PA<br />
FG CZ PA<br />
PA<br />
PS<br />
CS<br />
FG<br />
CB<br />
BA BA<br />
BA<br />
RC<br />
CS<br />
CS LE<br />
CH<br />
PS<br />
PA<br />
CH<br />
LE CS PA<br />
LE<br />
PA<br />
CB<br />
MS PA<br />
TE<br />
BA PT<br />
BA PT LE<br />
MS CH PA<br />
MS<br />
CT<br />
CT<br />
CT<br />
CT<br />
CT MS<br />
CT<br />
MS<br />
CT<br />
MS<br />
CT<br />
MS<br />
MS<br />
CT SS<br />
SS<br />
SS<br />
CA SS BO<br />
SS SS CT<br />
SS<br />
CA<br />
SS<br />
CA CA CA CA<br />
CA<br />
AG AR EC PH LA EN HU FO ME VE PS TE SC PO ST SO<br />
faculty<br />
32<br />
SA<br />
ROSAP UR<br />
NAFED<br />
UR<br />
TN<br />
ROSAP<br />
NAFED<br />
TN
Figure A3: percentage of graduates over students, by field of study and college<br />
percentage of graduates 1996-97<br />
.2<br />
.15<br />
.1<br />
.05<br />
0<br />
PV<br />
MIULM<br />
PV<br />
TO<br />
TO<br />
TO<br />
TO<br />
TO<br />
TO<br />
TO<br />
MISTA<br />
ROLUI<br />
MIPOL<br />
MISTA<br />
NAFED<br />
BO GE VE<br />
PD FI<br />
UD PC TOPOL FI<br />
PI<br />
ROSAP<br />
NAFED VT<br />
PG<br />
ROLUI<br />
PR<br />
ROLUI<br />
MIBOC MICAT VE<br />
MO<br />
MISTA<br />
ROCAT VR<br />
SI<br />
UR PG<br />
FE<br />
MICAT<br />
PR<br />
TS<br />
MIPOL VE<br />
GE SI<br />
GE BG PD<br />
PI BO<br />
PI<br />
NAFED<br />
PD<br />
MISTA<br />
TN<br />
GE GE<br />
MISTAMISTA MICAT<br />
VR<br />
MO<br />
BO BO<br />
SI<br />
AN<br />
PI ROSAP<br />
TS<br />
PG<br />
FI<br />
FI<br />
FI<br />
ROSAP NAFED TOPOL<br />
PD<br />
UD<br />
VR BO<br />
BO PG BO<br />
PG ROSAP<br />
PI<br />
GE PR<br />
CAS<br />
PD PV<br />
TS MO BO PV BO PD PR MICAT<br />
GE TS<br />
CO PV<br />
ROSAP SI<br />
UR TN VE AN<br />
PI<br />
ROSAP PG<br />
ROTOR<br />
GE<br />
PG MC FI BG<br />
ROTOR<br />
PV ROTOR<br />
PI NAFEDNAFED MC UR PD FI ROTOR AN TS<br />
PR<br />
TS FE FI<br />
ROSAP<br />
PI<br />
PI VR<br />
AL MO PG<br />
ROTOR<br />
MC UD VC<br />
FE FE<br />
NO<br />
PD<br />
TO<br />
MO MICAT<br />
TN<br />
BO PV<br />
UR<br />
MISTA UR<br />
PD FE MISTA<br />
GE PR SI FI ROSAP<br />
ROTRE<br />
ROSAP PI PV<br />
TO<br />
FI ROTOR<br />
PD<br />
PG TS BO<br />
GE<br />
FI<br />
MICAT<br />
TO<br />
BO TS<br />
AL ROSAP<br />
UR<br />
GE MC<br />
PD AL PI<br />
AN<br />
BV<br />
ROTRE<br />
NAFED<br />
NAFED<br />
NAORI<br />
SA<br />
SA<br />
SA<br />
NAORI<br />
NASEC<br />
SA<br />
AQ<br />
NAFED<br />
NAPAR<br />
AQ SA<br />
NAFED<br />
NAORI<br />
SA NAFED<br />
SA<br />
AQ AQ<br />
PS PA<br />
RC<br />
BA<br />
CT<br />
PA<br />
PT<br />
PA<br />
PS<br />
PA<br />
BA<br />
BA<br />
CT<br />
BA<br />
MS<br />
CH<br />
MS<br />
BA<br />
CH<br />
PS<br />
CS BA<br />
PA CT<br />
CS<br />
MS LE<br />
TE PA<br />
PA<br />
MS<br />
MS<br />
CT CZ<br />
CS<br />
LE CH BA<br />
PA BAPOL<br />
PT CT<br />
CA MS CT CT<br />
CB<br />
FG CB FG<br />
MS<br />
MS<br />
MS<br />
PA<br />
LE BA CT PA<br />
TE<br />
PA<br />
CS<br />
MS<br />
BA LE<br />
CT<br />
CT<br />
LE<br />
CA<br />
SS<br />
BO<br />
SS<br />
CA<br />
SS<br />
CA<br />
SS<br />
SS CA<br />
CA<br />
SS<br />
SS<br />
CA<br />
SS<br />
AG AR EC PH LA EN HU FO ME VE PS TE SC PO ST SO<br />
faculty<br />
33<br />
PR<br />
BO<br />
UR<br />
NAFED<br />
TN<br />
ROSAP<br />
Figure A4: percentage of female professors, by field of study and college<br />
percentage of female professors 1996-97<br />
.8<br />
.6<br />
.4<br />
.2<br />
0<br />
PC<br />
MISTA RC PA<br />
TO<br />
TOPOL<br />
MIPOL<br />
GE<br />
NAFED<br />
PG VE<br />
PD ROSAP<br />
UD PA FI<br />
BO PS FI<br />
CT<br />
NAFED<br />
VT<br />
PT<br />
BA<br />
FE<br />
PI<br />
MS<br />
SS<br />
SA<br />
VR<br />
GE<br />
TO<br />
MISTA<br />
MICAT BG<br />
PD<br />
GE PR<br />
MISTA<br />
VC<br />
PV<br />
VE<br />
PV<br />
VR<br />
GE<br />
TS<br />
TO PD TS MIULM<br />
PD<br />
GE<br />
MICAT PR<br />
MISTA<br />
TS<br />
PV<br />
CO UD TS AL VR<br />
TO TO<br />
TO GE<br />
PD<br />
VE<br />
MISTA<br />
BG MISTA<br />
PR PR PV VE<br />
NO PV<br />
MIPOL<br />
GE<br />
TOPOL<br />
PV<br />
PD<br />
TN<br />
VR PR<br />
TO<br />
ROCAT<br />
TN GE<br />
MICAT<br />
UD TS<br />
TS<br />
MIBOC<br />
PD<br />
MICAT<br />
GE<br />
PD<br />
MICAT<br />
TO GE<br />
MISTA<br />
GE<br />
MICAT<br />
MISTA PV AL<br />
TO<br />
PD<br />
PV<br />
PD AL PD<br />
TS<br />
TO TS<br />
TN<br />
PR<br />
MO<br />
BO<br />
BO<br />
BO<br />
MO<br />
MO<br />
BO<br />
BO<br />
MO<br />
BO<br />
BO<br />
MO<br />
PR<br />
BO<br />
UR<br />
PI<br />
NAFED<br />
FE FI<br />
FE<br />
ROSAP<br />
ROTOR<br />
ROSAP<br />
PG<br />
PG PI SI<br />
UR PI<br />
ROTOR FI<br />
MC<br />
NAFED PI FE<br />
SI<br />
ROTRE CAS<br />
PG<br />
BV<br />
ROSAP FI<br />
FO<br />
ROTOR FE<br />
FI<br />
PI<br />
ROSAP<br />
UR<br />
AN<br />
PI<br />
PG<br />
ROLUI SI<br />
ROTOR ROSAP<br />
MC<br />
ROTOR PI SI PG<br />
PG<br />
AN<br />
PG<br />
MC FI<br />
NAFED FI<br />
AN PI<br />
ROLUI<br />
UR<br />
BO<br />
ROTRE FI<br />
ROSAP<br />
PG BO<br />
MC<br />
BO<br />
ROSAP<br />
UR BO<br />
FE SI<br />
ROTOR<br />
PI FI ROSAP<br />
FI<br />
UR<br />
ROLUI<br />
PI<br />
NAFED<br />
NAORI<br />
BO<br />
MS<br />
CT<br />
PA PS<br />
CB<br />
CA<br />
FG<br />
BA<br />
NAFED NAORI<br />
CA<br />
CT<br />
LE<br />
SA<br />
PA<br />
BA<br />
SA<br />
CH CS<br />
NAPAR<br />
AQ<br />
CT<br />
BA CZ<br />
CA SS MS<br />
CS<br />
NAFED<br />
PA CA SS<br />
CA<br />
PS BA MS BA<br />
PA<br />
MS<br />
SS<br />
SA<br />
TE<br />
BA CT<br />
MS<br />
SA<br />
NASEC NAFED CH<br />
PA AQ PA<br />
LE CT CT SS<br />
PT<br />
BAPOL MS CS<br />
CH CB<br />
MS<br />
CT<br />
PA<br />
BA SS<br />
AQ NAFED<br />
SA BA SS<br />
LE CA PA<br />
NAORI<br />
NAFED MS CT<br />
CS<br />
CT MS<br />
PA TE<br />
SS SA<br />
AQ LE<br />
CA<br />
NAFED<br />
ROSAP<br />
UR<br />
TN<br />
AG AR EC PH LA EN HU FO ME VE PS TE SC PO ST SO<br />
faculty
Figure A5: average age of professors, by field of study and college<br />
average age of professors 1996-97<br />
65<br />
60<br />
55<br />
50<br />
45<br />
TOPOL<br />
MIPOL PA<br />
NAFED<br />
GE<br />
BO<br />
RC<br />
PG VE FI<br />
MISTA TO BA<br />
PC PA<br />
CT<br />
PI FI<br />
NAFED PD VT<br />
PS<br />
UD<br />
PT<br />
ROSAP<br />
FE<br />
TO<br />
TO<br />
TO<br />
TO<br />
TO<br />
TO<br />
TO TO<br />
GE<br />
GE<br />
GE<br />
GE GE<br />
GE<br />
TOPOL<br />
GE<br />
AL<br />
VC<br />
NO<br />
GE<br />
GE<br />
AL<br />
AL<br />
GE<br />
PD<br />
PD<br />
PV<br />
MICATMIULM<br />
PD PR<br />
MISTA MO TS TS BO BO BO<br />
MISTA ROCAT<br />
MISTA<br />
MICAT PV TS<br />
PR BO TS<br />
MICAT<br />
PV<br />
VR PR<br />
PD<br />
TS<br />
PR<br />
MICAT PR BO VR VE VE VR MISTA<br />
PD<br />
MO BO MIPOL PD<br />
PV MISTA<br />
BG<br />
PD<br />
TS BO PV<br />
MO VR<br />
MIBOC<br />
CO PR<br />
BO<br />
VE<br />
PV<br />
UD<br />
BG<br />
UD TN<br />
MO<br />
BO<br />
PR<br />
MICAT<br />
PD<br />
MICAT<br />
PV<br />
MISTA PV<br />
PD<br />
MISTA<br />
MO<br />
BO<br />
TS<br />
TS<br />
PD<br />
TN<br />
TN<br />
BO<br />
ROSAP ROSAP<br />
MS<br />
ROTOR<br />
PG<br />
FO<br />
CT ROSAP<br />
ROSAP NAFED NAFED NAFED CA FI<br />
PI<br />
CT ROTOR MC MS PA<br />
FI<br />
PI PI<br />
PI<br />
PI SI<br />
NAORI NASEC MS PI<br />
BA<br />
PG NAFED PG<br />
NAPAR<br />
CH BA SA SA BA<br />
BAPOL PA<br />
PA<br />
SS<br />
BO<br />
LE NAFED<br />
FE FI PA SS SI BA<br />
ROSAP<br />
PG MS ROLUI PG FE<br />
FI SI<br />
ROTOR<br />
ROSAP NAFEDNAORI<br />
CT<br />
CA<br />
ROLUI MC UR<br />
AN PG<br />
UR<br />
PA SS BA<br />
SS MS<br />
FE PI FI FI PS CA<br />
MS<br />
ROTRE CH<br />
CA TE<br />
UR<br />
PI<br />
BA PA AN<br />
SA MS FE<br />
ROTOR AN<br />
BV MC AQ LE<br />
AQ<br />
CT LE CT CS CT CS<br />
CAS<br />
SI<br />
CH<br />
FG SA SS<br />
FG SA<br />
CS<br />
ROTOR<br />
PS<br />
PG PT<br />
CB CB<br />
CZ<br />
NAFED<br />
NASEC<br />
ROTRE ROSAP<br />
AQ<br />
ROLUI PI<br />
UR<br />
PG NAFED<br />
PA LE<br />
PA<br />
SS<br />
SS SS<br />
ROSAP<br />
BA FI ROSAP NAFED FE PI<br />
NAORI<br />
MS BA FI MS<br />
MC CT FI<br />
BO<br />
CT<br />
SI<br />
TE<br />
ROTOR UR CA LE MS PA<br />
AN UR<br />
SA<br />
CS<br />
AQ CA<br />
SA<br />
ROSAP<br />
UR<br />
NAFED<br />
TN<br />
CA<br />
AG AR EC PH LA EN HU FO ME VE PS TE SC PO ST SO<br />
faculty<br />
Figure A6: gross college wage effects, by gender<br />
males<br />
1400<br />
1200<br />
1000<br />
800<br />
SS<br />
MS<br />
MC<br />
CA<br />
FE<br />
CS<br />
MO<br />
PV<br />
NAFED<br />
PR<br />
SA<br />
PD<br />
PA<br />
BO<br />
ROSAP<br />
300 350<br />
females<br />
Gross wage effects<br />
400<br />
SI<br />
34<br />
LE<br />
ROTOR<br />
TN<br />
UR<br />
BA<br />
MICAT<br />
CT<br />
TO<br />
MISTA<br />
PG<br />
CT<br />
FI<br />
AQ<br />
TS<br />
TO<br />
PI<br />
GE
Figure A7: gross employment effects, by gender<br />
males<br />
.3<br />
.2<br />
.1<br />
0<br />
-.1<br />
CA<br />
MS<br />
NAFED CS<br />
CT<br />
PA<br />
BA<br />
ROTOR<br />
LE<br />
ROSAP<br />
PI<br />
SI<br />
PG SA GE<br />
MC<br />
SS<br />
AQ<br />
.4 .6<br />
females<br />
Gross employment effects<br />
.8 1<br />
35<br />
TN<br />
MO<br />
FI<br />
PR TS<br />
BO<br />
FE<br />
PV PD<br />
TO<br />
MISTA<br />
Note: the numbers in the table are percentages, which add up to 100 by row.<br />
UR<br />
MICAT<br />
Table A1. The gross effects of private college dummies on average wage effects<br />
Private college dummies Males Males Females Females<br />
Private universities<br />
Economics<br />
Law<br />
Humanities<br />
Medicine<br />
Natural Sciences<br />
Political Science<br />
Nobs<br />
R Squared<br />
Note : each regression includes faculty dummies. One, two and three stars for statistically significant parameters at<br />
the 10, 5 and 1 percent level of confidence.