We propose a methodology for estimating the competition effects from entry when firms sell differentiated products. We first derive precise conditions under which Bresnahan and Reiss' entry threshold ratios (ETRs) can be used to test for the presence and to measure the magnitude of competition...

Based on a rich personnel data set of a large university we find strong evidence for the existence of an internal labor market. First, the lowest academic rank is a strong port of entry and the highest rank is a port of exit. Second, wages do not follow external wage developments, since they...

We study the determinants of the diffusion of mobile telecommunications services in the European Union in a logistic model of technology diffusion. We find that the transition from the analogue to the digital technology during the early nineties, and the corresponding increase in spectrum...

Public systems of higher education have recently attempted to cut costs by providing financial incentives to institutions who reduce the diversity of their programs. We study the profit and welfare effects of reducing product diversity in higher education, against the background of a funding...

Empirical search cost estimates tend to increase in the size of the transaction, even if search can be done conveniently online. To assess this pattern systematically, we conduct an online search experiment in which we manipulate the price scale while keeping the physical search effort for each...

We analyze the political impact of a generous solar panel subsidization program. Subsidies far exceeded their social benefit and were partly financed by new taxes to adopters and by electricity surcharges to all consumers. We use local panel data from Belgium and find a decrease in votes for...