We analyze costly information acquisition and information revelation in groups in a dynamic setting. Even when group members have perfectly aligned interests the group may inefficiently delay decisions. When deadlines are far away, uninformed group members freeride on each others' efforts to...

This paper incorporates training in the design of unemployment policies. Human capital falls upon displacement and continuously depreciates during unemployment. While training counters the decrease in human capital, it also affects the willingness of the unemployed to search. I characterize the...

Recent empirical work finds that surprisingly little variation in the demand for insurance is explained by heterogeneity in risks. I distinguish between heterogeneity in risk preferences and risk perceptions underlying the unexplained variation. Heterogeneous risk perceptions induce a systematic...

This paper analyzes the design of tax systems under imperfect enforcement. A common policy in developing countries is to impose minimum tax schemes whereby firms are taxed either on profits or on turnover, depending on which tax liability is larger. This production inefficient tax policy has...

This paper analyzes the effects of top earnings tax rates on the international migration of top football players in Europe. We construct a panel data set of top earnings tax rates, football player careers, and club performances in the first leagues of 14 European countries since 1980. We...

This paper analyzes optimal unemployment insurance over the business cycle in a search model in which unemployment stems from matching frictions (in booms) and job rationing (in recessions). Job rationing during recessions introduces two novel effects ignored in previous studies of optimal...

This paper analyzes the effects of income taxation on the international migration and earnings of top earners using a Danish preferential foreigner tax scheme and population-wide Danish administrative data. This scheme, introduced in 1991, allows new immigrants with high earnings to be taxed at...

This paper offers quasi experimental evidence of the existence of spillover effects of UI extensions using a unique program that extended unemployment benefits drastically for a subset of workers in selected regions of Austria. We use non-eligible unemployed in treated regions, and a...