Please use this identifier to cite or link to this item: http://hdl.handle.net/10419/35345
Authors: 
Cardoso, Ana Rute
Hamermesh, Daniel S.
Varejão, José
Year of Publication: 
2008
Series/Report no.: 
IZA discussion papers 3885
Abstract: 
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 existence of substitution of employment across times of the day/week and show that legislated penalties for work at irregular hours induce firms to alter their operating schedules. The results suggest a role for such penalties in an unregulated labor market, such as the United States, in which unusually large fractions of work are performed at night and on weekends.
Subjects: 
Labor demand
time use
wage penalty
JEL: 
J23
Persistent Identifier of the first edition: 
Document Type: 
Working Paper

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