The long-run impact on earnings of motivational and social factors is assessed using data from the Panel Study of Income Dynamics (PSID). Our analyses use a sample of men first observed in their 20s and relates their social and motivational traits to labor-market attainments measured 15-25 years...

How much of the income-based gaps in cognitive ability and academic achievement could be closed by a two-year, center-based early childhood education intervention? Data from the Infant Health and Development Program (IHDP), which randomly assigned treatment to low birth weight children from both...

How much of the income-based gaps in cognitive ability and academic achievement could be closed by a two-year, center-based early childhood education intervention? Data from the Infant Health and Development Program (IHDP), which randomly assigned treatment to low birth weight children from both...