The World Bank and others maintain that the major mechanism for improving nutrition in poor communities is increases in income. Aggregate estimates of food expenditure are consistent with such a possibility, implying income/expenditure elasticities close to one. However, the high degree of...

Unequal access to financing for education may be an important source of educational differences. The authors develop a model relating sib schooling and earnings similarities to sibship, size with and without equal access, and estimate it for the education of veterans, for whom the GI Bill...

The authors modify R. A. Fisher's model by incorporating measures on the environment that may be correlated across kin groups. They estimate a model of schooling attainment using data on eight kin groups and find a large contribution of generic endowments to the variance in schooling, though...

The authors show how comparisons between the within-twin correlations of human capital outcomes across identical and nonidentical twins can be used to identify the variability in the individual-specific component of endowments and the responsiveness of schooling to individual-specific endowments...