In this article, the authors sought to study the efficiency of the staff costs and its reflection upon the main economic and financial indicators of a company. In the performed study, the application of the factor analysis models was made at the level of an industrial trading company the social...

In this paper, we investigate the informational content of citation-based research evaluations. To illustrate our analysis we refer to the 2005 Handelsblatt ranking of German academic economists. We make extensive use of the recently developed Hirsch-index and relate citation incidence to...

The dynamics of women’s labour supply are examined at a crucial stage of the life-cycle. This paper uses the longitudinal employment history records for 3,893 33-year-old mothers in the 5th sweep of the 1958 National Child Development Study cohort. Models of binary recurrent events are...

This Paper claims that technical progress induces early retirement of older workers. It supports this claim both theoretically and empirically. We present a model where part of human capital is technology-specific, so that technical progress erodes some existing human capital. This affects...

This Paper proposes a model of endogenous growth where innovating requires both researchers, who produce inventions, and entrepreneurs who implement them. As research and entrepreneurship compete in the allocation of aggregate resources, the relation between growth and research effort is...

Technological change was unskilled-labor-biased during the early Industrial Revolution, but is skill-biased today. This is not embedded in extant unified growth models. We develop a model which can endogenously account for these facts, where factor bias reflects profit maximizing decisions by...

We study the dynamics of optimal trade policy in a model with costly inter-sectoral adjustment of labour, where migrants pay less than the marginal social cost of migration. If workers have rational expectations, a future tariff has an announcement effect on the current migration decision. If...

We develop a model demonstrating conditions under which firms will invest in the general training of their workers, and show that firms’ incentives to invest in general training are increasing in task complexity. Workers’ heterogeneous observable innate ability affects the variety of tasks...

This paper uses data from nine tennis Grand Slam tournaments played between 2005 and 2007 to assess whether men and women respond differently to competitive pressure in a setting with large monetary rewards. In particular, it asks whether the quality of the game deteriorates as the stakes become...

This paper explores the implications of giving unemployed people -- particularly the long-term unemployed -- the opportunity to use part of their unemployment benefits to provide employment vouchers to the firms that hire them. The vouchers would depend positively on unemployment duration and...