Eating requires the food materials that make up meals and also time devoted to buying food, preparing meals and eating them, and cleaning up afterwards. Using time-diary and expenditure data for the U.S. for 1985 and 2003, I examine how income and time prices affect time and goods inputs into...

This examination of the role and potential for replication in economics points out the paucity of both pure replication -- checking on others' published papers using their data -- and scientific replication -- using data representing different populations in one's own work or in a Comment....

"With the beginnings of a worldwide burgeoning development of matched firm-employee data, it is worthwhile to examine the possibilities for using these data. This essay discusses a variety of areas in which some progress has been made and presents ideas for future research in a number of others,...

Retirement ages among older Americans have only recently begun to increase after a precipitous fifty-year decline. Early retirement may result from incentives provided by retirement systems; but it may also result from the rigidities imposed by market work schedules. Using the American Time Use...

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...

The previously documented trend toward more co- and multi-authored research in economics is partly (perhaps 20 percent) due to different research styles of scholars in different birth cohorts (of different ages). Most of the trend reflects profession-wide changes in research style. Older...

I ask generally whether a country can benefit from the temporary importation of human capital, and specifically whether a program that attracts large groups of academic visitors to a distant country benefits it by generating additional scholarly research on local issues. Using the list of...