Birth-order effects are posited by many to affect earnings and schooling. The authors show how such effects can be interpreted to shift either the earnings possibility frontier for siblings or parental preferences. The authors find empirical evidence for birth- order effects on (age-adjusted)...

This article tests the implications of the general human capital that (1) at the individual level, there is a negative relationship between the initial wage level and wage growth of inexperienced workers and (2) at the market level, the ratio of the present values of wage profiles of investors...