Small Family, Smart Family? Family Size and the IQ Scores of Young Men

被引：91

作者：

Black, Sandra E. ^{[1
]}

Devereux, Paul J. ^{[2
,3
]}

Salvanes, Kjell G.

机构：

[1] Univ Calif Los Angeles, Los Angeles, CA 90095 USA

[2] Univ Coll Dublin, Sch Econ, Dublin, Ireland

[3] Univ Coll Dublin, Geary Inst, Dublin, Ireland

来源：

JOURNAL OF HUMAN RESOURCES | 2010年 / 45卷 / 01期

关键词：

INTELLIGENCE-TEST SCORES; SIBLING SEX COMPOSITION; SECULAR TRENDS; TWIN BIRTHS; QUANTITY; QUALITY;

D O I：

10.1353/jhr.2010.0001

中图分类号：

F [经济];

学科分类号：

02 ;

摘要：

This paper uses Norwegian data to estimate the effect of family size on IQ scores of men. Instrumental variables (IV) estimates using sex composition as an instrument show no significant negative effect of family size; however, IV estimates using twins imply that family size has a negative effect on IQ scores. Our results suggest that the effect of family size depends on the type of family-size intervention and that there are no important negative effects of expected increases in family size. However, unexpected shocks to family size resulting front twin births have negative effects on the IQ scores of existing children.

引用

页码：33 / 58

页数：26

共 38 条

[1]

Angrist JD, 1998, AM ECON REV, V88, P450

[2]

ANGRIST JD, 2006, 0626 MIT

[3] Income, schooling, and ability: Evidence from a new sample of identical twins [J].