Social and Behavioral Sciences Commons^™

Suggested Versus Extended Gifts: How Alternative Market Institutions Mitigate Moral Hazard, Daniel Houser, Jason Shachat, Weiwei Zheng

ESI Working Papers

Gift exchange can partially mitigate supply-side moral hazard, even in anonymous market interactions. In a market where quality is not fully contractable, the amount that a price exceeds the market-clearing price for the lowest quality is a gift from the buyer. We show that the gift formation process, inextricably linked with a market institution’s price formation process, greatly influences the size and effectiveness of the gift. When the market institution dictates that prices are formed by bids posted by buyers, the gift is extended to the seller. When the market institution dictates that prices are formed by offers posted by …