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<strong>FIGHTING</strong> <strong>AGAINST</strong> <strong>MALARIA</strong>:<br />

<strong>PREVENT</strong> <strong>WARS</strong> <strong>WHILE</strong> WAITING FOR THE<br />

“MIRACULOUS” VACCINE *<br />

José García Montalvo and Marta Reynal-Querol **<br />

WP-EC 2002-31<br />

Correspondence to: José García Montalvo, Departament d'Economia, Universitat Pompeu<br />

Fabra, Calle Ramón Trias Fargas, 25-27, 08005 BARCELONA, Spain, Tel. +34 93 542 25 09,<br />

e-mail: jose.garcia-montalvo@econ.upf.es.<br />

Editor: Instituto Valenciano de Investigaciones Económicas, S.A.<br />

Primera Edición Noviembre 2002<br />

Depósito Legal: V-4549-2002<br />

IVIE working papers offer in advance the results of economic research under way in order to<br />

encourage a discussion process before sending them to scientific journals for their final<br />

publication.<br />

* We thank J. Caballé and M. Reiter and participants in the European Economic Association Meetings<br />

(Venice 2002) for many useful comments. The authors are greatful for financial support from the IVIE.<br />

** J. García-Montalvo: <strong>Ivie</strong> and Universitat Pompeu Fabra; M. Reynal-Querol: Instituto de Análisis<br />

Económico (IAE), CSIC, Barcelona.


<strong>FIGHTING</strong> <strong>AGAINST</strong> <strong>MALARIA</strong>:<br />

<strong>PREVENT</strong> <strong>WARS</strong> <strong>WHILE</strong> WAITING FOR THE “MIRACULOUS” VACCINE<br />

José García Montalvo and Marta Reynal-Querol<br />

ABSTRACT<br />

The World Health Organization estimates that 300 million clinical cases of<br />

malaria occur annually and its incidence increased during the 90’s. There are basically<br />

two factors behind the incidence of malaria: “geographical destiny”, or ecological<br />

conditions, and social conditions, which are related with unstable populations or<br />

movements of people. In this paper we explore the influence of civil wars and refugees<br />

from wars on the incidence of malaria in the asylum countries using a large panel data.<br />

The panel structure helps to separate “geographical destiny” from other social<br />

conditions. The results of the estimation show the importance of civil wars’ refugees on<br />

the increase of malaria during recent years.<br />

Keywords: Malaria, migrations, ecological conditions.<br />

RESUMEN<br />

La Organización Mundial de la Salud estima que cada año se producen 300<br />

millones de nuevos casos de malaria y su incidencia ha aumentado durante los años 90.<br />

Hay básicamente dos factores explicativos de la incidencia de la malaria: “destino<br />

geográfico”, o condiciones ecológicas, y el contacto social, que está relacionado con<br />

movimientos de la población. En este trabajo estudiamos la influencia de las guerras<br />

civiles y los refugiados generados por dichas guerras sobre la incidencia de la malaria en<br />

los países de asilo usando datos de panel. Esta estructura ayuda a separar el “destino<br />

geográfico” de las condiciones sociales. Los resultados de la estimación muestran la<br />

importancia de los refugiados de guerras civiles sobre el incremento de la incidencia de<br />

la malaria.<br />

Palabras clave: malaria, migraciones, condiciones ecológicas.<br />

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Ai hit*|t @hi M@tU@**) |i t@4i u i ti @ _hiU| ThL ) Lu |i _t|hM|L? Lu<br />

4;<br />

Vlqfh wkh hqgrjhqrxv yduldeoh lv d sursruwlrq zh uxq dovr vhyhudo uhjuhvvlrqv xvlqj d jurxshg<br />

orjlw vshflfdwlrq1 Wkh txdolwdwlyh uhvxowv duh edvlfdoo| wkh vdph dv wkh rqhv lq wdeoh 41


Table 1. Determinants of the flow of refugees: Fixed effects model.<br />

Dependent variable: flow of refugees<br />

Model 1 2 3 4 5 6<br />

LNGDP 0.0000<br />

(0.36)<br />

0.0002<br />

(1.59)<br />

0.0002<br />

(1.45)<br />

0.0002<br />

(1.44)<br />

0.0002<br />

(1.49)<br />

0.0002<br />

(1.54)<br />

CW 0.004<br />

(5.75)<br />

0.104<br />

(20.53)<br />

0.1211<br />

(23.27)<br />

0.1274<br />

(23.80)<br />

0.1330<br />

(24.53)<br />

0.1389<br />

(24.39)<br />

CW*STLIV -0.0012<br />

(-20.14)<br />

-0.0012<br />

(-21.65)<br />

-0.0013<br />

(-22.04)<br />

-0.0014<br />

(-22.78)<br />

0.0015<br />

(-2255)<br />

STLIV 0.00002<br />

(0.92)<br />

0.0000<br />

(0.51)<br />

0.0000<br />

(0.76)<br />

0.000<br />

(1.15)<br />

0.000<br />

(1.66)<br />

CW*URB -0.0004<br />

(-9.36)<br />

-0.0003<br />

(-5.97)<br />

-0.0003<br />

(-5.18)<br />

-0.0002<br />

(-4.54)<br />

URB 0.00005<br />

(1.04)<br />

0.00005<br />

(1.08)<br />

0.00006<br />

(1.24)<br />

0.000<br />

(1.02)<br />

CW*IRRIG -0.1733<br />

(-5.50)<br />

-0.1698<br />

(-5.35)<br />

-0.1622<br />

(-4.90)<br />

IRRIG -0.025<br />

(-0.80)<br />

-0.0252<br />

(-0.81)<br />

-0.024<br />

(-0.75)<br />

URBDEATH 5.810<br />

(1.75)<br />

7.27<br />

(2.10)<br />

OPEN 0.000<br />

(0.91)<br />

Drought -0.002<br />

(-0.70)<br />

NATDIS<br />

Constant 0.00009<br />

(0.09)<br />

-0.0038<br />

(-1.51)<br />

-0.0043<br />

(-1.47)<br />

-0.0042<br />

(-1.34)<br />

-0.0054<br />

(-1.71)<br />

Yes<br />

-0.007<br />

(-2.03)<br />

R-squared 0.0123 0.1107 0.2073 0.2250 0.2191 0.2187<br />

N 3366 1136 1136 1075 1066 997<br />

Numbers in parentheses are t-statistics


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u@Ui Lu |i t@* i |ih?@*|it @ttLU@|i_ | |t !?_ Lu ThLM*i4t<br />

Aihi t @ _gihi?| TihtTiU|i U hi*it L? |i ?it|}@|L? Lu |i U@tit Lu |i<br />

4@*@h@ |@| @hi ?L| t|hU|*) iT_i4L*L}U@* Lh 44?L*L}U@* W? |i ?|hL_U|L? |L<br />

|i €ht| i_|L? Lu hUi@||


@*@h@ UL?|?it |L Mi @ 4@Lh ThLM*i4 Lu |hLTU@* _ii*LT?} UL?<br />

|hit @?_ |i hiUi?| )i@ht @i tii? |i hi|h? Lu | |L @hi@t uhii_ uhL4<br />

|i _ti@ti ? |i<br />

bSf


Lu |i _ti@titc @t tMt|||i M) UL?|hL* 4i@thit |L !iiT |i _ti@tit @| @ *L *ii*<br />

W| t 4TLh|@?| |L ?L|Ui |@| |iU?U@* ThLM*i4t @hi @}}h@@|i_ M) |i _U*|it<br />

_ihi uhL4 U* @ht @?_ tLU@* UL?U|t LhiLih 4@?) @ht |@!i T*@Ui ? UL?<br />

|hit | @ } ?U_i?Ui Lu 4@*@h@ 6Lh ?t|@?Ui |i u}@? U* @h |@!it T*@Ui<br />

? @ UL?|h) ihi |i ?U_i?Ui Lu 4@*@h@ t }c @?_ @t }i?ih@|i_ t 4**L?t Lu<br />

hiu}iit |@|c ? Th?UT*itc @hi @| @ ih) } ht! Lu Mi?} ?uiU|i_<br />

@ih@ i| @* E bb2 _t|?}t _gihi?| T@||ih?t Lu hiTLh|i_ 4@*@h@ U@tit Ai<br />

tL U@**i_ }hLT t |i L?i |@| ThL_Uit 4Lt| Lu |i U@tit Lu 4@*@h@ @ih@ i|<br />

@* E bb2 @h}i |@| |iti UL?|hit @hi U@h@U|ih3i_ M) hiUi?| igLh|t |L ?Uhi@ti<br />

|i i T*L|@|L? Lu ?@|h@* hitLhUit E|hL} @}hU*|h@* UL*L?3@|L? Lu uLhit| Lh<br />

?}*i @hi@t Lh M) U* @h @?_ tLULTL*|U@* UL?U| E?U*_?} **i}@* _h} |h@_i<br />

@?_ *@h}i 4Li4i?|t Lu hiu}iit Lh L|ih 4@tt 4}h@|L?t<br />

e<br />

BiL}h@TU@* @?_ tLU@* U@tit Lu |i ?U_i?Ui Lu 4@*@h@<br />

W? |t T@h| Lu |i T@Tih i @?@*)3i |i hi*@|L?tT Mi|ii? |i ?U_i?Ui Lu 4@*@h@<br />

? |i @t)*4 UL?|h) U@ti_ M) |i _tT*@Ui4i?| Lu TiLT*i uhL4 |i UL?|h) |@|<br />

tgiht |i U* @h |L |i @t)*4 UL?|h)<br />

`i @h}i |@| *i hM@? @hi@t @hi<br />

4Lt|*) uhii Lu ?L?4TLh|i_ 4@*@h@c hh@* @hi@t @i tL4i U@h@U|iht|Ut |@| 4@!i<br />

|i4 @ ih) UL?|@}Lt T*@Ui uLh ?L?44?i U* TLT*@|L? ii?} uhL4 U* @h<br />

Lh tLU@* ?hit| `i UL?t_ih U* @ht @?_ tLU@* UL?U| @t L?i Lu |i M@tU hi@tL?t<br />

Mi?_ |i LMtihi_ ?Uhi@ti ? |i ?U_i?Ui Lu 4@*@h@ i|ih _hiU|*) E?L?44?i<br />

hiu}iit }i| ? UL?|@U| | ?uiU|i_ ?__@*t i? |i) ii |hL} hh@* @?_<br />

h@?uLhit| @hi@t |L hi@U @ uLhi}? UL?|h) Lh ?_hiU|*) EU* @ht 4@!i ih) _U*|<br />

Lh ii? 4TLttM*i |L !iiT @U|i UL?|hL* 4i@thit @}@?t| 4@*@h@ L|Ui |@| u<br />

|t t |i U@ti |i ThLM*i4 Lu @ u|hi @UU?i @}@?t| 4@*@h@ ** ?L| L?*) Mi |i<br />

iUL?L4U ULt| uLh _ii*LT?} UL?|hit Lu 4@!?} | @@*@M*i uLh |i TLT*@|L? M|<br />

@*tL |i u@U| |@| uhi^i?| U* @ht ? ?_ih_ii*LTi_ @?_ _ii*LT?} UL?|hit **


4@!i ih) _U*| |t @_4?t|h@|L?<br />

W? u@U| | UL*_ @*tL MiUL4i @? @h4 uLh<br />

tL4i Lu |i u@U|L?t ?L*i_ ? @ U* @h<br />

AihiuLhic @t ? |i U@ti Lu UL?|hL*<br />

igLh|tc |i igiU|i?itt Lu @? ii?|@* @UU?i ** _iTi?_ ?L| L?*) L? tLULiUL?L4U<br />

_ii*LT4i?| @?_ |i ?Ui?|it uLh @UU?i hiti@hU M| @*tL L? TL*|U@* t|@M*|)<br />

6}hi Thiti?|t @ }i?ih@* i Lu |i hi*@|L?tT Mi|ii? |i LU@* _@|@ L?<br />

U@tit Lu 4@*@h@ 22 @?_ U* @ht `| hitTiU| |L |i |L|@* U@tit Lu 4@*@h@ | tL*_<br />

Mi Mi@h_ ? 4?_ |@| |i ?4Mih Lu hiTLh|?} UL?|hit @hit *@h}i*) Lih |4i W?<br />

T@h|U*@h |ihi @hi |L UL?|hit |@| @i @ _i|ih4?@?| ?i?Ui L? |i ?4Mih<br />

Lu U@titG ?@ @?_ W?_@<br />

?@ t|@h|i_ |L hiTLh| LU@**) |L |i `Lh*_ Oi@*|<br />

h}@?3@|L? E`O ? b.. W?|@**) | hiTLh|i_ U*Lti |L uLh 4**L? U@tit @?_<br />

uhL4<br />

b.. | hiTLh|i_ @? i TL?i?|@**) _iUhi@t?} ?4Mih Lu U@tit W?_@ t @*tL @<br />

UL?U|i U@ti ? |ih4t Lu |t igiU| L? |i |L|@* ?4Mih Lu U@tit @?_ | _hit |i<br />

}hL| Lu U@tit _h?} |i b.e.. iT_i4U TihL_ ihi | @UUL?|t uLh U*Lti |L<br />

2fI Lu |i |L|@* U@tit Lu 4@*@h@ ? |i Lh*_ 6Lh |t hi@tL? ? 6}hi<br />

i @*tL<br />

_iTU| |i hi*@|L?tT Mi|ii? |i ?4Mih Lu U* @ht @?_ |i U@tit Lu 4@*@h@<br />

? |i Lh*_ |L| UL?|?} W?_@ @?_ ?@ 5|** @u|ih i*4?@|?} |i ?i?Ui<br />

Lu W?_@ @?_ ?@ |ihi i t| |i ThLM*i4 Lu |i uhU@? hi}L?<br />

Ai UL?|hit<br />

? |t @hi@ @hi !?L? |L @i hhi}*@h hiTLh|?}c ? 4Lt| Lu |i U@tit _i |L |i<br />

_U*|it U@ti_ M) tLULTL*|U@* UL?U|t<br />

6}hi 2 tLt |i iL*|L? Lu |i<br />

?4Mih Lu U@tit Lu 4@*@h@c @u|ih i*4?@|?} ?@ @?_ W?_@c @?_ |i ?4Mih Lu<br />

hiTLh|?} UL?|hit ? |hLTU@* uhU@ W| tLt L ihh@|U t |i iL*|L? Lu |i<br />

?4Mih Lu hiTLh|?} UL?|hit ? |hLTU@* uhU@ 6Lh |t hi@tL? i @i TihuLh4i_<br />

@? ?|ihTL*@|L? ThLUi_hi 2 |L 4T|i |i 4tt?} _@|@ Lu |iti UL?|hit Ai<br />

?|ihTL*@|L? t TihuLh4i_ t?} |i *@t| @@*@M*i _@|@ MiuLhi |i 4tt?} TihL_ @?_<br />

55<br />

Iru d klvwrulfdo dqg jhrjudsklfdo shuvshfwlyh vhh Kdprxgl dqg Vdfkv +4


Figure 1. Cases of malaria and civil wars.<br />

Source: WHO Weekly Epidemiological Record (1999) and Doyle and Sambanis (2000).<br />

35<br />

45000000<br />

30<br />

40000000<br />

35000000<br />

25<br />

30000000<br />

Civil wars<br />

20<br />

15<br />

10<br />

5<br />

0<br />

1962<br />

1963<br />

1964<br />

1965<br />

1966<br />

1967<br />

1968<br />

1969<br />

1970<br />

1971<br />

1972<br />

1973<br />

1974<br />

Number of civil wars Total Without India and China<br />

1975<br />

1976<br />

1977<br />

1978<br />

1979<br />

1980<br />

1981<br />

1982<br />

1983<br />

1984<br />

1985<br />

1986<br />

1987<br />

1988<br />

1989<br />

1990<br />

1991<br />

1992<br />

1993<br />

1994<br />

1995<br />

1996<br />

1997<br />

25000000<br />

20000000<br />

15000000<br />

10000000<br />

5000000<br />

0<br />

Cases of malaria


Figura 2: Number of African countries reporting and number of cases.<br />

Source: WHO Weekly Epidemiological Record (1999).<br />

50<br />

40000000<br />

45<br />

35000000<br />

40<br />

30000000<br />

35<br />

30<br />

25000000<br />

25<br />

20000000<br />

20<br />

15000000<br />

15<br />

10<br />

5<br />

0<br />

1962<br />

1963<br />

1964<br />

1965<br />

1966<br />

1967<br />

1968<br />

1969<br />

1970<br />

1971<br />

1972<br />

1973<br />

1974<br />

1975<br />

1976<br />

1977<br />

1978<br />

1979<br />

Number of reporting countries<br />

1980<br />

1981<br />

1982<br />

1983<br />

1984<br />

1985<br />

1986<br />

Cases without China and India<br />

1987<br />

1988<br />

1989<br />

1990<br />

1991<br />

1992<br />

1993<br />

1994<br />

1995<br />

1996<br />

1997<br />

10000000<br />

5000000<br />

0


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W? |t @) u |i hiTLh|?} @t<br />

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TihL_ |i? |i ?|@* €}hi Lu |i ?i | hiTLh|?} TihL_ L*_ ?ULhTLh@|i 4Lt| |i<br />

?Uhi@ti ? 4@*@h@ 6}hi hiThiti?|t |i |L|@* U@tit Lu 4@*@h@ LM|@?i_ t?} |t<br />

?|ihTL*@|L? @?_ |i ?4Mih Lu hiu}iit Lh*__i Ai } ULhhi*@|L? Lu |iti<br />

@h@M*it t L?i Lu |i 4L|@|L?t uLh |t hiti@hU L? hiu}iit @?_ |i ?U_i?Ui Lu<br />

4@*@h@ MLt*) |i ?Uhi@ti ? |i ?U_i?Ui Lu 4@*@h@ U@??L| Mi L?*) |i hit*|<br />

Lu |hLTU@* _it|?) 2e t?Ui |t t ?@h@?| Lih |4i Aihi 4t| Mi |i UL4M?i_<br />

igiU| Lu iUL*L}U@* @?_ ?L? iUL*L}U@* u@U|Lht @| i T*@? |t |i?_i?U)<br />

4L?}<br />

|i4 |i ?|ih@U|L? Lu @h hiu}iit @?_ |hLTU@* *LU@|L? t L?i Lu |i M@tU u@U|Lht<br />

W? }i?ih@* 4@*@h@ |h@?t4ttL? _iTi?_t L? |i _)?@4Ut Lu |i hi*@|L?tT Mi<br />

|ii? 4i?c iU|Lhc T@h@t|i @?_ i?hL?4i?|<br />

t i @h}i_ ? tiU|L? 2 4@*@h@<br />

|h@?t4ttL? t ?L| _itThi@_ ? _i?ti*) TLT*@|i_ hM@? @hi@t 2D Ai @h *i@_t |L<br />

4Li4i?| Lu TiLT*i L| Lu |i U|it W? }i?ih@* |i @?@hUU t|@|L? U@ti_ M)<br />

|t tLU@* ?hit| @?_ |i 4*|@h) 4TLh|@?Ui L? T@i_ hL@_tc uLhUi TiLT*i |L @*!<br />

|hL} ?u@4*@h hh@* @hi@tc _4Tt @?_ uLhit|t ? Lh_ih |L @L_ @hi@t Lu 4*|@h)<br />

LTih@|L?t Wu |i U* @h }i?ih@*3it |t 4Li4i?| ** i?_ T ? 4}h@|L? |L @<br />

UL?|}Lt UL?|h) @t @ @h hiu}ii W? u@U| TLT*@|L? 4Li4i?| E_i |L TL*|U@*<br />

UL?U|t Lh U* @ht t TL|i?|@**) |i 4Lt| 4TLh|@?| u@U|Lh ? |i |h@?t4ttL? Lu<br />

4@*@h@ EUL?_|L?@* L? |i _)?@4Ut Mi|ii? iU|Lhc T@h@t|i @?_ i?hL?4i?| 2S <br />

`*i 4L?} uhL4 U|it |L |i MLh_ihtc u |i UL?|h) @t i?_i4U 4@*@h@c |i<br />

ThLM@M*|) Lu }i||?} ?uiU|i_ M) |i 4@*@h@ T@h@t|i ?Uhi@tit M) |i UL?|@U| |<br />

44?i hh@* TLT*@|L? @?_ |i 4Li4i?| |hL} hi4L|i ?hM@?3i_ @hi@t ihi<br />

57<br />

Vhh Eorrp dqg Vdfkv +4


Figure 3. Refugees and cases of malaria.<br />

Sources: UNHCR and Weekly Epidemiological Record (1999).<br />

45000000<br />

16000000<br />

40000000<br />

14000000<br />

Interpolated number of cases (without China and India)<br />

35000000<br />

30000000<br />

25000000<br />

20000000<br />

15000000<br />

10000000<br />

5000000<br />

0<br />

1962<br />

1963<br />

1964<br />

1965<br />

1966<br />

1967<br />

1968<br />

1969<br />

1970<br />

1971<br />

1972<br />

1973<br />

1974<br />

1975<br />

1976<br />

1977<br />

1978<br />

1979<br />

1980<br />

Cases of malaria<br />

1981<br />

1982<br />

1983<br />

Refugees<br />

1984<br />

1985<br />

1986<br />

1987<br />

1988<br />

1989<br />

1990<br />

1991<br />

1992<br />

1993<br />

1994<br />

1995<br />

1996<br />

1997<br />

12000000<br />

10000000<br />

8000000<br />

6000000<br />

4000000<br />

2000000<br />

0<br />

Refugees


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@*t t Uh|U@* +iTi@|i_ ?uiU|L? @4L?} ?__@* Lu hh@* i?_i4U @hi@t }i?ih@|i<br />

@? 44?i hitTL?ti ? |i Lt| L UL?|hL*t |i ?uiU|L? At u@U| 4T*it |@|<br />

@4L?} hh@* TLT*@|L? |i Thi@*i?Ui Lu 4@*@h@ UL*_ Mi ih) } | @? t4@**<br />

?4Mih Lu hiTLh|i_ U@tit ,i? |L| hi?uiU|L? |i Tihtt|i?Ui Lu |i 4@*@h@<br />

T@h@t|it UL*_ *@t| uhL4 |L )i@ht E u@*UT@h4 |L uLh )i@ht E @ T|L@t<br />

4@?) @t Df )i@ht E 4@*@h@i OLiih |i ht! Lu *ui |hi@|i??} 4@*@h@ t i <br />

U*ti*) Mi@h_ M) ?L?44?i TLT*@|L?t 2. @h@_L U@**) ? *L i?_i4U|) @hi@t<br />

t ihi |i ht! Lu tiihi ?uiU|L? t |i }it| @4L?} @_*| TLT*@|L? MiU@ti<br />

|i) 4@) }hL |L| _ii*LT?} 44?|)<br />

AihiuLhi |i hi@tL?t uLh 4}h@|L? ? |t t|@|L? @hi ?L| |i t@* _gihi?Uit<br />

Lu @}it @UhLtt UL?|hit M| t4T*) ui@h Lu _i@|<br />

Ai t4T*i |iLhi|U@* 4L_i*<br />

Lu tiU|L? 2 tLt |@| 4}h@|L? ** _iTi?_ L? |i ?|i?t|) Lu |i tLU@* UL?U|<br />

E4i@thi_ @t |i ThLM@M*|) Lu _)?} u t|@)?}c |i ThLM@M*|) Lu 4@*@h@ ?uiU|L?<br />

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Table 2A: Regression results: All refugees (all asylum countries)<br />

Dependent variable: malaria incidence<br />

Model 1 2 3 4 5 6<br />

REF 0.055 0.189 0.052 0.023 0.019 0.016<br />

(1.37) (2.34) (1.23)<br />

RURAL -100.91 -224.33 -142.86<br />

(-7.31) (-3.72) (-8.84)<br />

PHYS -202.49<br />

(-2.55)<br />

IPHYS -258.24<br />

(-4.96)<br />

(0.51)<br />

-144.09<br />

(-8.25)<br />

(0.44)<br />

-146.21<br />

(-8.34)<br />

(0.36)<br />

-162.25<br />

(-8.65)<br />

-317.40<br />

(-5.43)<br />

-317.67<br />

(-5.43)<br />

-321.33<br />

(-5.25)<br />

IRRIG 0.040<br />

(4.19)<br />

0.040<br />

(4.27)<br />

0.038<br />

(3.94)<br />

DR Yes Yes<br />

CW Yes Yes<br />

MCID<br />

Yes*<br />

R-sq 0.0587 0.0351 0.0494 0.1154 0.1200 0.1242<br />

N 3214 789 3194 2863 2863 2722<br />

The explanatory variables include time dummies.<br />

Numbers in parentheses are t-statistics.<br />

*significant<br />

Table 2B: Regression results: All Refugees (only asylum tropical countries)<br />

Dependent variable: malaria incidence<br />

Model 1 2 3 4 5 6<br />

REF 0.887 1.448 0.865 0.871 0.875 0.865<br />

(6.71) (7.18) (6.52)<br />

RURAL -123.45 -121.54 -156.13<br />

(-7.18) (-3.35) (-7.83)<br />

PHYS -142.53<br />

(-1.41)<br />

IPHYS -233.43<br />

(-3.28)<br />

(6.06)<br />

-161.03<br />

(-7.39)<br />

(6.08)<br />

-163.22<br />

(-7.46)<br />

(5.90)<br />

-175.58<br />

(-7.58)<br />

-249.08<br />

(-3.06)<br />

-246.79<br />

(-3.03)<br />

-265.29<br />

(-3.15)<br />

IRRIG 0.004<br />

(0.08)<br />

-0.003<br />

(-0.06)<br />

-0.008<br />

(-0.15)<br />

DR Yes Yes<br />

CW Yes Yes<br />

MCID<br />

Yes<br />

R-sq 0.0936 0.1518 0.1221 0.1280 0.1296 0.1269<br />

N 2295 539 2275 1991 1991 1919<br />

The explanatory variables include time dummies.<br />

Numbers in parentheses are t-statistics


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Table3A: Regression results: Refugees from tropical countries (all asylum countries)<br />

Dependent variable: malaria incidence<br />

Model 1 2 3 4 5 6<br />

REF -0.042<br />

(-0.97)<br />

-0.045<br />

(-0.57)<br />

-0.045<br />

(-1.04)<br />

-0.071<br />

(-1.53)<br />

-0.076<br />

(-1.63)<br />

-0.078<br />

(-1.63)<br />

REF1 1.176 2.354 1.147 1.146 1.159 1.146<br />

(8.03) (9.48) (7.82)<br />

RURAL -87.56 -83.26 -127.06<br />

(-2.87) (-7.88)<br />

PHYS -168.19<br />

(-2.25)<br />

IPHYS -241.25<br />

(-4.68)<br />

(7.34)<br />

-128.12<br />

(-7.35)<br />

(7.41)<br />

-130.67<br />

(-7.47)<br />

(7.15)<br />

-145.64<br />

(-7.77)<br />

-297.26<br />

(-5.12)<br />

297.15<br />

(-5.12)<br />

-299.93<br />

(-4.94)<br />

IRRIG 0.038<br />

(4.09)<br />

0.039<br />

(4.17)<br />

0.037<br />

(3.86)<br />

DR Yes Yes<br />

CW Yes Yes<br />

MCID<br />

Yes*<br />

R-sq 0.1060 0.1646 0.0808 0.1485 0.1533 0.1584<br />

N 3214 789 3194 2863 2863 2722<br />

The explanatory variables include time dummies.<br />

Numbers in parentheses are t-statistics<br />

*significant<br />

Table 3B: Regression results: Refugees from tropical countries (only asylum<br />

tropical countries)<br />

Dependent variable: malaria incidence<br />

Model 1 2 3 4 5 6<br />

REF -0.071<br />

(-0.29)<br />

-0.052<br />

(-0.16)<br />

-0.069<br />

(-0.28)<br />

-0.067<br />

(-0.26)<br />

-0.058<br />

(-0.22)<br />

-0.060<br />

(-0.22)<br />

REF1 1.334 2.372 1.303 1.317 1.312 1.299<br />

(4.57) (5.82) (4.46)<br />

RURAL -117.80 -101.31 -149.17<br />

(-6.87) (-2.88) (-7.53)<br />

PHYS -115.20<br />

(-1.17)<br />

IPHYS -223.11<br />

(-3.15)<br />

(4.20)<br />

-153.65<br />

(-7.06)<br />

(4.18)<br />

-155.85<br />

(-7.13)<br />

(4.06)<br />

-168.00<br />

(-7.26)<br />

-236.32<br />

(-2.91)<br />

-234.11<br />

(-2.89)<br />

-249.94<br />

(-2.97)<br />

IRRIG 0.004<br />

(0.07)<br />

-0.003<br />

(-0.06)<br />

-0.008<br />

(-0.14)<br />

DR Yes Yes<br />

CW Yes Yes<br />

MCID<br />

Yes<br />

R-sq 0.1109 0.2139 0.1353 0.1406 0.1427 0.1412<br />

N 2295 539 2275 1991 1991 1919<br />

The explanatory variables include time dummies.<br />

Numbers in parentheses are t-statistics


Table 4A: Regression results: Refugees from civil war (all asylum countries)<br />

Dependent variable: malaria incidence<br />

Model 1 2 3 4 5 6<br />

REF -0.212<br />

(-1.05)<br />

-0.151<br />

(-0.56)<br />

-0.229<br />

(-1.14)<br />

-0.255<br />

(-1.20)<br />

-0.255<br />

(-1.19)<br />

-0.264<br />

(-1.21)<br />

REF2 0.279 0.368 0.290 0.287 0.283 0.289<br />

(1.37) (1.31) (1.43)<br />

RURAL -101.03 -113.65 -143.12<br />

(-7.32) (-3.70) (-8.86)<br />

PHYS -202.92<br />

(-2.56)<br />

IPHYS -259.07<br />

(-4.98)<br />

(1.34)<br />

-144.36<br />

(-8.27)<br />

(1.32)<br />

-146.43<br />

(-8.35)<br />

(1.32)<br />

-162.52<br />

(-8.66)<br />

-318.23<br />

(-5.44)<br />

-318.51<br />

(-5.44)<br />

-322.10<br />

(-5.26)<br />

IRRIG 0.039<br />

(4.18)<br />

0.040<br />

(4.25)<br />

0.038<br />

(3.92)<br />

DR Yes Yes<br />

CW Yes Yes<br />

MCID<br />

Yes*<br />

R-sq 0.0581 0.0352 0.0493 0.1147 0.1193 0.1235<br />

N 3214 789 3194 2863 2863 2722<br />

The explanatory variables include time dummies.<br />

Numbers in parentheses are t-statistics<br />

*significant<br />

Table 4B: : Regression results: Refugees from civil war (only asylum tropical countries)<br />

Dependent variable: malaria incidence<br />

Model 1 2 3 4 5 6<br />

REF 0.182<br />

(0.82)<br />

0.192<br />

(0.72)<br />

0.158<br />

(0.71)<br />

0.157<br />

(0.66)<br />

0.156<br />

(0.65)<br />

0.150<br />

(0.61)<br />

REF2 0.938 2.283 0.940 0.954 0.960 0.955<br />

(3.89) (6.68) (3.90)<br />

RURAL -120.74 -102.83 -153.54<br />

(-7.04) (-2.96) (-7.77)<br />

PHYS -150.17<br />

(-1.55)<br />

IPHYS -234.48<br />

(-3.31)<br />

(3.68)<br />

-158.30<br />

(-7.28)<br />

(3.71)<br />

-160.46<br />

(-7.35)<br />

(3.62)<br />

-172.55<br />

(-7.47)<br />

-250.12<br />

(-3.08)<br />

-247.84<br />

(-3.05)<br />

-266.23<br />

(-3.17)<br />

IRRIG 0.004<br />

(0.08)<br />

-0.003<br />

(-0.07)<br />

-0.008<br />

(-0.16)<br />

DR Yes Yes<br />

CW Yes Yes<br />

MCID<br />

Yes<br />

R-sq 0.1093 0.2402 0.1362 0.1407 0.1420 0.1396<br />

N 2294 539 2275 1991 1991 1919<br />

The explanatory variables include time dummies.<br />

Numbers in parentheses are t-statistics


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Table5A: Regression results: Refugees from civil war of tropical countries<br />

(all asylum countries)<br />

Dependent variable: malaria incidence<br />

Model 1 2 3 4 5 6<br />

REF -0.034<br />

(-0.80)<br />

-0.015<br />

(-0.21)<br />

-0.038<br />

(-0.88)<br />

-0.063<br />

(-1.38)<br />

-0.068<br />

(-1.48)<br />

-0.070<br />

(-1.49)<br />

REF3 1.408 2.997 1.378 1.382 1.391 1.378<br />

(9.33) (11.52) (9.12)<br />

RURAL -86.46 -74.31 -125.44<br />

(-6.31) (-2.63) (-7.81)<br />

PHYS -144.59<br />

(-1.99)<br />

IPHYS -238.24<br />

(-4.64)<br />

(8.59)<br />

-126.41<br />

(-7.28)<br />

(8.64)<br />

-128.91<br />

(-7.40)<br />

(8.35)<br />

-143.69<br />

(-7.70)<br />

-293.46<br />

(-5.08)<br />

-293.60<br />

(-5.08)<br />

-296.14<br />

(-4.90)<br />

IRRIG 0.038<br />

(4.04)<br />

0.039<br />

(4.14)<br />

0.037<br />

(3.83)<br />

DR Yes Yes<br />

CW Yes Yes<br />

MCID<br />

Yes*<br />

R-sq 0.1234 0.2036 0.0916 0.1587 0.1634 0.1691<br />

N 3214 789 3194 2863 2863 2722<br />

The explanatory variables include time dummies.<br />

Numbers in parentheses are t-statistics<br />

*significant<br />

Table 5B: Regression results: Refugees from civil war of tropical countries<br />

(only asylum tropical countries)<br />

Dependent variable: malaria incidence<br />

Model 1 2 3 4 5 6<br />

REF 0.113<br />

(0.63)<br />

0.182<br />

(0.77)<br />

0.104<br />

(0.58)<br />

0.106<br />

(0.55)<br />

0.105<br />

(0.55)<br />

0.101<br />

(0.51)<br />

REF3 1.408 2.888 1.387 1.410 1.417 1.406<br />

(6.29) (8.59) (6.18)<br />

RURAL -116.12 -90.30 -147.08<br />

(-6.80) (-2.66) (-7.46)<br />

PHYS -99.92<br />

(-1.06)<br />

IPHYS -220.32<br />

(-3.12)<br />

(5.84)<br />

-151.26<br />

(-6.98)<br />

(5.86)<br />

-153.32<br />

(-7.04)<br />

(5.71)<br />

-165.12<br />

(-7.17)<br />

-234.43<br />

(-2.90)<br />

-232.15<br />

(-2.87)<br />

-248.22<br />

(-2.97)<br />

IRRIG 0.006<br />

(0.11)<br />

-0.002<br />

(-0.04)<br />

-0.007<br />

(-0.13)<br />

DR Yes Yes<br />

CW Yes Yes<br />

MCID<br />

Yes<br />

R-sq 0.1330 0.2768 0.1544 0.1578 0.1594 0.1584<br />

N 2295 539 2275 1991 1991 1919<br />

The explanatory variables include time dummies.<br />

Numbers in parentheses are t-statistics


Table 6A: Regression results: Refugees from civil war of tropical countries<br />

(all asylum countries). Per capita fixed effects and glogit<br />

Dependent variable: malaria incidence per capita<br />

Model 1 2 3 4 5 6<br />

CapREF -0.0189<br />

(-0.47)<br />

-0.0027<br />

(-0.04)<br />

-0.036<br />

(-0.89)<br />

-0.037<br />

(-0.70)<br />

-0.0383<br />

(-0.71)<br />

-0.031<br />

(-0.58)<br />

CapREF3 0.2300 0.9788 0.2196 0.239 0.2379 0.2267<br />

(2.75) (5.61) (2.63)<br />

RURAL 0.0008 0.0004 0.0006<br />

(4.38) (1.43) (3.46)<br />

PHYS -0.014<br />

(-2.26)<br />

IPHYS -0.0265<br />

(-6.04)<br />

(2.75)<br />

0.0005<br />

(3.10)<br />

(2.73)<br />

0.0005<br />

(3.11)<br />

(2.66)<br />

0.0005<br />

(3.06)<br />

-0.0258<br />

(-5.71)<br />

-0.026<br />

(-5.74)<br />

-0.026<br />

(-5.87)<br />

CapIRRIG 0.0498<br />

(0.65)<br />

0.0453<br />

(0.59)<br />

0.1314<br />

(1.75)<br />

DR Yes Yes<br />

CW Yes Yes<br />

MCID 0.0017<br />

(0.47)<br />

Year Yes Yes Yes Yes Yes Yes<br />

Country<br />

R-squared 0.1155 0.1236 0.1206 0.1110 0.1161 0.1002<br />

N 3214 789 3194 2863 2863 2722<br />

Numbers in parentheses are t-statistics. *significant<br />

Table 6B: Regression results: Refugees from civil war of tropical countries<br />

(only asylum tropical countries). Per capita fixed effects<br />

Dependent variable: malaria incidence per capita<br />

Model 1 2 3 4 5 6<br />

CapREF -0.0147<br />

(-0.31)<br />

0.0137<br />

(0.16)<br />

-0.037<br />

(-0.77)<br />

-0.0436<br />

(-0.66)<br />

-0.044<br />

(-0.67)<br />

-0.044<br />

(-0.65)<br />

CapREF3 0.2049 0.941 0.1979 0.2261 0.2241 0.223<br />

(2.15) (4.48) (2.08)<br />

RURAL 0.001 0.000 0.0006<br />

(3.76) (0.96) (2.86))<br />

PHYS -0.022<br />

(-2.24)<br />

IPHYS -0.039<br />

(-6.42)<br />

(2.24)<br />

0.0005<br />

(2.45)<br />

(2.22)<br />

0.0005<br />

(2.48)<br />

(2.16)<br />

0.0005<br />

(2.11)<br />

-0.037<br />

(-6.07)<br />

-0.0377<br />

(-6.09)<br />

-0.0383<br />

(-5.94)<br />

CapIRRIG 0.214<br />

(1.64)<br />

0.1958<br />

(1.48)<br />

0.199<br />

(1.47)<br />

DR Yes Yes<br />

CW Yes Yes<br />

MCID 0.00013<br />

(0.03)<br />

Year Yes Yes Yes Yes Yes Yes<br />

Country<br />

R-squared 0.1331 0.1681 0.1558 0.1313 0.1416 0.1411<br />

N 2295 539 2275 1991 1991 1919<br />

Numbers in parentheses are t-statistics


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Table 7: Analysis of Robustness.<br />

Dependent variable: Incidence of Malaria<br />

Model All countries Only tropical<br />

countries<br />

Without Africa,<br />

China, India<br />

REF 0.111<br />

(0.50)<br />

0.218<br />

(0.89)<br />

0.262<br />

(0.50)<br />

REF3 1.414<br />

(8.29)<br />

1.623<br />

(4.48)<br />

0.340<br />

(4.03)<br />

REF2 -0.189<br />

(-0.84)<br />

-0.314<br />

(-0.81)<br />

-0.055<br />

(-1.05)<br />

RURAL -143.01<br />

(-7.66)<br />

-164.51<br />

(-7.14)<br />

6.23<br />

(-1.65)<br />

IPHYS -294.96<br />

(-4.87)<br />

-245.28<br />

(-2.93)<br />

9.38<br />

(1.02)<br />

IRRIG 0.037<br />

(3.83)<br />

-0.006<br />

(-0.12)<br />

0.025<br />

(5.85)<br />

DR Yes Yes Yes<br />

CW Yes Yes Yes*<br />

MCID Yes* Yes Yes<br />

R-sq 0.1694 0.1588 0.1724<br />

N 2722 1919 1643<br />

Numbers in parentheses are t-statistics<br />

*significant


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