A well-known result in incentive theory is that for a very broad class of decision problems, there is no mechanism which achieves truth-telling in dominant strategies, efficiency and budget balancedness (or first best implementability). On the contrary, Mitra and Sen (1998), prove that linear...

This paper addresses the question of delegation in a principal-agent setting with asymmetric information. If the person who has the power to act, the principal, doesn't have the necessary information to make the best possible decision, she can address herself to someone, the agent, who has this...