In order to simplify the representation of a technological relationship between inputs and outputs, a production unit's technology must typically satisfy some restrictive conditions, some of them being well known in the literature. This paper presents new results for aggregating labour inputs...

Using data from the German Socio-Economic Panel (GSOEP) effects of being individually affected by downward wage rigidity on layoffs, quits and intra-firm mobility are investigated. We measure the individual extent of wage rigidity within a structural empirical model that allows us to estimate...

We analyse preferences for public, private or mixed provision of childcare theoretically and empirically. We model childcare as a publicly provided private good. Richer households should prefer private provision to either pure public or mixed provision. If public provision redistributes from...