NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

NBER Publications by Ana Rute Cardoso

Contact and additional information for this authorAll papers and publicationsWorking Papers onlyWorking Papers with publication info

Working Papers and Chapters

December 2011Can Compulsory Military Service Increase Civilian Wages? Evidence from the Peacetime Draft in Portugal
with David Card: w17694
Although military conscription was widespread during most of the past century, credible evidence on the effects of mandatory service is limited. We provide new evidence on the long-term effects of peacetime conscription, using longitudinal data for Portuguese men born in 1967. These men were inducted at a relatively late age (21), allowing us to use pre-conscription wages to control for ability differences between conscripts and non-conscripts. We find that the average impact of military service for men who were working prior to age 21 is close to zero throughout the period from 2 to 20 years after their service. These small average effects arise from a significant 4-5 percentage point impact for men with only primary education, coupled with a zero-effect for men with higher education. The...
November 2009Temporary Help Services Employment in Portugal, 1995-2000
with René Böheim
in Studies of Labor Market Intermediation , David H. Autor, editor
December 2008The Timing of Labor Demand
with Daniel S. Hamermesh, José Varejão: w14566
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.
November 2007Temporary Help Services Employment in Portugal, 1995-2000
with Rene Boeheim: w13582
Whereas there is widespread belief that workers in temporary help services (THS) are subject to poorer working conditions, in particular pay, than comparable workers in the rest of the economy, there is little evidence on whether that is driven by the sector per se or by the workers' characteristics. The first aim of this analysis is to quantify the wage penalty, if any, for workers in THS firms. Secondly, we analyze the wage profile of workers right before and after spells of THS. Linked employer-employee data for Portugal enable us to account for observable as well as unobservable worker quality. Our results show that workers in THS firms earn lower wages than their peers and that this difference is mostly due to the workers' characteristics. We estimate that workers in THS firms earn on...

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