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"In recent decades, the US wage structure has been transformed by a rising college premium, a narrowing gender gap, and increasing persistent and transitory residual wage dispersion. This paper explores the implications of these changes for cross-sectional inequality in hours worked, earnings and consumption, and for welfare. The framework for the analysis is an incomplete-markets overlapping-generations model in which individuals choose education and form households, and households choose consumption and intra-family time allocation. An explicit production technology underlies equilibrium prices for labor inputs differentiated by gender and education. The model is parameterized using micro data from the PSID, the CPS and the CEX. With the changing wage structure as the only primitive force, the model can account for the key trends in cross-sectional US data. We also assess the role played by education, labor supply, and saving in providing insurance against shocks, and in exploiting opportunities presented by changes in the relative prices of different types of labor"--National Bureau of Economic Research web site

"Using a model with constant relative risk-aversion preferences, endogenous labor supply and partial insurance against idiosyncratic wage risk, we provide an analytical characterization of three welfare effects: (a) the welfare effect of a rise in wage dispersion, (b) the welfare gain from completing markets, and (c) the welfare effect from eliminating risk. Our analysis reveals an important trade-off for these welfare calculations. On the one hand, higher wage uncertainty increases the cost associated with missing insurance markets. On the other hand, greater wage dispersion presents opportunities to raise aggregate productivity by concentrating market work among more productive workers. Our welfare effects can be expressed in terms of the underlying parameters defining preferences and wage risk, or alternatively in terms of changes in observable second moments of the joint distribution over individual wages, consumption and hours"--National Bureau of Economic Research web site

This paper evaluates the role of rising income inequality in explaining observed growth in college tuition. We develop a competitive model of the college market, in which college quality depends on instructional expenditure and the average ability of admitted students. An innovative feature of our model is that it allows for a continuous distribution of college quality. We find that observed increases in US income inequality can explain more than half of the observed rise in average net tuition since 1990 and that rising income inequality has also depressed college attendance. (JEL D31, I22, I23, I24)