A relatively unexplored question in dynamic labour demand regards the source of adjustment costs, whether they depend on net or gross changes in employment. We estimate a structural model of dynamic labour demand where the firm faces adjustment costs related to gross and net changes in its...

Temporary forms of employment account for a variable but never trivial share of total employment in both the U.S. and in Europe. In this article we look at how one specific form of temporary employment - employment with fixed-term contracts - fits into employers' hiring policies. We find that...

The consequences of aggregation, temporal or spatial, for the estimation of demand models are theoretically well-known, but have not been documented empirically with appropriate data before. In this paper we conduct a simple, but instructive, exercise to fill in this gap, using a large quarterly...