Mean earnings and measures of earnings dispersion and skewness all increase in US data over most of the working life-cycle for a typical cohort as the cohort ages. We show that a benchmark human capital model can replicate these properties from the right distribution of initial human capital and...

Understanding how productivity varies with age is important for a variety of reasons. A decline in productivity with age implies that aging societies must increasingly depend on the labor supply of the young and middle age. It also means that policies designed to keep the elderly in the work...

Using panel data on individual labor income histories from 1957 to 2013, we document two empirical facts about the distribution of lifetime income in the United States. First, from the cohort that entered the labor market in 1967 to the cohort that entered in 1983, median lifetime income of men...

The rich live longer than the poor, but relatively little is known about the evolution of health inequality across the lifecycle. Using rich administrative data from the Netherlands, we develop an index of chronic disease burden based on the projected contribution to old-age mortality. Chronic...

We measure health inequality during middle and old age by race, ethnicity, and gender and evaluate the extent to which it can explain inequalities in other key economic outcomes using the Health and Retirement Study data set. Our main measure of health is frailty, which is the fraction of one's...

Knowing the degree of substitutability between schooling groups is essential to understanding the role of human capital in income differences and to assessing the economic impact of such policies as schooling subsidies, immigration systems, or redistributive taxes. We derive a lower bound for...

The traditional studies of income distribution, a field with which economists are becoming increasingly concerned, must be described as basically sociological. The ascendancy of the human capital approach can be viewed as a reaction of economists to this non-economic, though certainly not...

How important is human capital at the top of the U.S. income distribution? A primary source of top income is private "pass-through" business profit, which can include entrepreneurial labor income for tax reasons. This paper asks whether top pass-through profit mostly reflects human capital,...

Wage inequality has been significantly higher in the United States than in continental European countries (CEU) since the 1970s. Moreover, this inequality gap has further widened during this period as the US has experienced a large increase in wage inequality, whereas the CEU has seen only...

Recent research on the economics of human development deepens understanding of the origins of inequality and excellence. It draws on and contributes to personality psychology and the psychology of human development. Inequalities in family environments and investments in children are substantial....