Reducing fixed cost duplication - a common justification for concentrated market structure - motivated the US government to relax the number of radio stations a firm could operate in any local market.  After deregulation the number of firms per market decreased.  The implied cost saving...

In this paper we use a dynamic structural life-cycle model to analyze the employment,fiscal and welfare effects induced by unemployment insurance. The model features a detailedspecification of the tax and transfer system, including unemployment insurance benefitswhich depend on an individual's...