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Amparo Castelló-Climent, Universidad Carlos III de Madrid ... - Ivie

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Average Fertility Rate 1960-1<br />

9<br />

8<br />

7<br />

6<br />

5<br />

4<br />

3<br />

2<br />

ZWE<br />

BOL<br />

PHL ECU<br />

PRY LSO DOMPER<br />

MEX ZAF<br />

THA<br />

VEN<br />

CR<br />

COL<br />

BRA<br />

GUY JAM<br />

PAN<br />

FJI<br />

TTO CHL<br />

IRL ISR<br />

ARG<br />

NZLISLBRB<br />

URY<br />

AU FRA ESP CYP<br />

NLD GBR<br />

POL NORCAN<br />

HUN FIN<br />

BEL DNK<br />

USA AUT<br />

SWE JPN DEU CHE ITAGRCYUG<br />

LKA<br />

HKG<br />

MUOAN<br />

PRT<br />

KEN<br />

MW<br />

SYR JOR<br />

DZA<br />

HND<br />

PAK IRQ<br />

UGA BWA<br />

NICZMB<br />

SEN GTM KW GHASDN NER<br />

SWZ BGD MOZ<br />

LBR MRT ML IRN SLE<br />

SLV PNGZAR<br />

BHR<br />

TUN NPL<br />

CMR<br />

IND HT<br />

MY<br />

TUR<br />

KOR<br />

SGP<br />

IDN<br />

CAF<br />

1<br />

0<br />

0 0,1 0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 1<br />

Human Capital Gini coeffic<br />

Figure 1: Human Capital Inequality and Average Fertility Rates<br />

inequality may affect growth not only through a discouraging effect on physical<br />

capital investment rate but also through a positive correlation with the fertility<br />

rate, in Table 7 the investment and fertility rates are exclu<strong>de</strong>d from the set of<br />

explanatory variables. As a result, the coefficient of the human capital Gini<br />

in<strong>de</strong>x in all estimated equations is negative and statistical significant. Column<br />

(1) of Table 7 displays the long-term results in the OLS cross-section estimation<br />

where, controlling for other variables, the coefficient of the human capital Gini<br />

in<strong>de</strong>x collects the effect of an increase in human capital inequality in 1960 over<br />

the average growth rate in the subsequent 25 years. Un<strong>de</strong>r the presence of<br />

country-specific effects the coefficients of the OLS estimations are inconsistent,<br />

for this reason column (3) shows the results of the fixed effect mo<strong>de</strong>l, which<br />

also reports a negative and statistically significant coefficient for the human<br />

capital Gini in<strong>de</strong>x. However, the presence of the lagged <strong>de</strong>pen<strong>de</strong>nt variable<br />

as an explanatory variable makes the fixed effect mo<strong>de</strong>l also inconsistent. In<br />

addition, most of the explanatory variables should be treated as endogenous<br />

since their coefficients may indicate a problem of reverse causation. Columns<br />

(4) and (5) display the results of the first differences and system generalized<br />

Since the initial human capital Gini coefficent may be picking up the level of <strong>de</strong>velopment<br />

of the country, we also run a regression controlling for the initial income per capita. The<br />

coefficient of the human capital Gini in<strong>de</strong>x in this regression continues being positive and<br />

statistically significant with a value of 3.402 and a robust standard error equal to 0.590, the<br />

R 2 is 0.729.<br />

25

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