School choice programs, such as vouchers or charter schools, offer parents an alternative to traditional public schools, while removing students from traditional public schools. If there are returns to scale in education, a major exodus of students from public schools could increase the average...

This paper studies the intergenerational persistence of work hours. In particular, I look at the correlation of hours between fathers and sons in the U.S. Using data from the Panel study of Income Dynamics, I find a strong persistence in the permanent component of hours worked. I investigate the...

This paper presents a theory where increases in female labor force participation and reductions in the gender wage-gap are generated as part of the same process of demographic transition that leads to reductions in fertility. There have been significant increases in the labor supply of women in...

In this paper we assess the role of reallocation of resources -- through shifts in market shares among incumbents as well as through firm entry and exit – to productivity. We are motivated by the evidence in all countries studied of heterogeneity of firms and substantial mobility of...

In this paper I estimate unobserved labor-generated knowledge spillovers within and among six large macroeconomic sectors covering the totality of the US civilian economy from 1948 to 1991. Unobserved spillovers are identified by observed TFP changes measured using Dale Jorgenson’s...

A dynamic general equilibrium model of work, schooling, occupational and sectoral decisions is developed and estimated. The model is fit to data on life cycle employment, schooling, occupational and sectoral decisions, and on life cycle labor earnings, within and between cohorts observed in the...

This paper investigates a learning model in which information about a worker's ability, unobserved to both the worker and the firm, can be acquired in any period by both parties by observing the worker's performance at a given task. Tasks are differentially informative about productivity: more...

In this paper we document substantial returns to occupational tenure. Everything else being constant, ten years of occupational tenure are likely to increase wages by at least $19\%$. Moreover, we show that when occupational experience is taken into account, tenure with an industry or an...

Social contacts help workers to find jobs, but those jobs need not be in the occupations where workers are most productive. Hence social contacts can generate mismatch between a worker's occupational choice and his comparative productive advantage. Thus economies with dense social networks can...

In this paper, we examine the general equilibrium implications of human capital accumulation in the presence of superstar markets, in which small differences in skill translate into huge differences in earnings. Previous research has concentrated on the microeconomic wage implications of...