We document and discuss a dramatic change in the cyclical behavior of aggregate skilled hours since the mid-1980s. Using CPS data for 1979:1-2003:4, we find that the volatility of skilled hours relative to the volatility of GDP has nearly tripled since 1984. In contrast, the cyclical properties...

We propose an explanation for why efficient reforms are not carried out when losers can block their implementation and compensations are feasible. In our model, a government tries to sequentially implement two efficient reforms by bargaining with interest groups. The organization of interest...

In this paper I suggest a unified explanation for two puzzles in the inventory literature: first, estimates of inventory speeds of adjustment in aggregate data are very small relative to the apparent rapid reaction of stocks to unanticipated variations in sales. Second, estimates of inventory...

When markets are incomplete, shareholders typically disagree on the firm's optimal investment plan. This article studies the shareholders' preferences with respect to the firm's investment in a model with aggregate risk, incomplete markets and heterogeneous households who trade in firms' shares...

This paper documents and discusses a dramatic change in the cyclical behavior of aggregate hours worked by individuals with a college degree (skilled workers) since the mid-1980’s. Using the CPS outgoing rotation data set for the period 1979:1-2003:4, we find that the volatility of aggregate...

We study the evolution of educational attainment of the 1932–1972 cohorts using a calibrated model of investment in human capital with heterogeneous learning ability. The inter-cohort variation in schooling is driven by changes in skill prices, tuition, and education quality over time, and...

We investigate the role of direct public support for education in explaining the post-WWII evolution of college attainment in the U.S. College attainment has surged from the end of WWII until the early 1970s, then declined for about a decade and has been slowly recovering towards the level of...

We develop a new dynamic general equilibrium model of firm location choice that can explain the observed sorting of firms by productivity and is consistent with the observed entry, exit, and relocation decisions of firms within an urban economy. We discuss existence of equilibrium of and...

I study selected fiscal policy issues both in the short-run and long-run using empirical methods. In Chapter 2, I investigate the effects of increases in U.S. government expenditures on the private sector in a real business cycle framework using maximum likelihood. I distinguish between the...