We analyze the impact of three different transfer fee systems on payoffs, contract lengths, training and effort incentives in European football. The different regimes, being used until 1995 ("Pre-Bosman" or P), currently in use ("Bosman" or B), and recently approved ("Monti" or M) differ with...

This paper studies the long-term effect of radiation on cognitive skills. We use regional variation in nuclear fallout caused by the Chernobyl disaster in 1986, which led to a permanent increase in radiation levels in most of Europe. To identify a causal effect, we exploit the fact that the...

Governments are showing an increasing interest in quantitative models that give insights into the determinants of unemployment duration. Yet, these models oftentimes do not explicitly take into account that unemployment prospects are influenced by personality characteristics that are not being...

Brazilian health authorities have recommended that pregnant women take meticulous precaution to avoid mosquito bites, and use contraceptive methods to postpone/delay pregnancies. In this article, we present new estimates on the Zika virus prevalence, its correlates and preventive behaviors in...