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...

Merging several data sets from Portugal from 1986-2004 with a cross-section on the same firms for 003 that gives information on work timing, we describe temporal patterns of firms’ demand for labor and estimate production functions. The results demonstrate the existence of substitution of...

A critical synthesis of the rapidly growing literature on substitution among labor force aggregates is presented. Despite the large number of studies now available, the only firm conclusions are: (1) Physical and human capital are complements and are jointly substitutable with raw labor. This...

Using a very large sample of matched author-referee pairs, we examine how referees' and authors' genders affect the referees' recommendations. Relying on changing author-referee matches, we find no evidence of gender differences among referees in charitableness, nor is there any effect of the...

American workweeks are long compared to other rich countries'. Much less well-known is that Americans are more likely to work at night and on weekends. We examine the relationship between these two phenomena using the American Time Use Survey and time-diary data from 5 other countries. Adjusting...

Using CPS data from 1979-2009 we examine how cyclical downturns and industry-specific demand shocks affect wage differentials between white non-Hispanic men and women, Hispanics and non-Hispanic whites, and African-Americans and non-Hispanic whites. Women's relative earnings are harmed by...

Using several microeconomic data sets from the United States and the Netherlands, and the examples of height and beauty, this study examines whether: 1) Absolute or relative differences in a characteristic are what affect labor-market and other outcomes; and 2) The effects of a characteristic...

Using a wide array of examples from the literature and from original estimates, the author examines the pitfalls that make good empirical research in labor economics at least as much craft as statistical technique. Among the subjects discussed are the appropriateness and cleanliness of data;...

We use longitudinal data describing couples in Australia from 2001-12 and Germany from 2002-12 to examine how demographic events affect perceived time and financial stress. Consistent with the view of measures of stress as proxies for the Lagrangean multipliers in models of household production,...