We model unemployment allowing workers to differ by comparative advantage in market work. Workers with comparative advantage are identified by who works more hours when employed. This enables us to test the model by grouping workers based on their long-term wages and hours from panel data. The...

We examine the timing of firms' operations in a formal model of labor demand. Merging a variety of data sets from Portugal from 1995-2004, we describe temporal patterns of firms' demand for labor and estimate production-functions and relative labor-demand equations. The results demonstrate the...

Major strands of recent macroeconomic theory hinge on the relation of workers' efforts to their wages, but there has been no direct general evidence on this relation. This study uses data from household surveys for 1975 and 1981 that include detailed time diaries to examine how changes in the...