The assessment that the implementation of efficient outcomes by means of decentralized spontaneous solutions is to be expected for private goods, but not for public goods has become part of the conventional wisdom of our discipline. This paper uses a mechanism design approach to clarify under...

Many countries rely on monitoring of unemployment insurance and welfare recipients and impose benefit sanctions in case of noncompliance with job search requirements to encourage job search and to prevent abuse of the social insurance system. This paper systematically analyzes the...

A budget-constrained buyer wants to purchase items from a shortlisted set. Items are differentiated by observable quality and sellers have private reserve prices for their items. Sellers quote prices strategically, inducing a knapsack game. The buyer's problem is to select a subset of maximal...