We aim at investigating to what extent reciprocal considerations, exhibited by employers and employees, should lead to stable gift exchange practices in the labor contract, giving rise to non- compensating wage differentials among industries. We use the concept of Sequential Reciprocity...

We analyze competitive pressures in a sequence of auctions with a growing number of bidders, in a model that includes private and common valuations as special cases. We show that the key determinant of bidders' surplus (and implicitly auction revenue) is how the goods are distributed. In any...

We develop a model of information processing and strategy choice for participants in a double auction. Sellers in this model form beliefs that an offer will be accepted by some buyer. Similarly, buyers form beliefs that a bid will be accepted. These beliefs are formed on the basis of observed...

We present two notions of “no arbitrage” in urban economic models and show that there is no model satisfying both. The standard hedonic housing model of urban economics and its generalizations are consistent with the first of these, but inconsistent with the second. We present a model...

We show that an asymptotic envy-freeness is a necessary condition for a form of robust approximate implementation in large economies.

We present a general equilibrium model that encompasses the endogenous selection of a set of tradeable commodities. At its foundation we introduce the notion of a trade infrastructure as a set of social institutions describing the trade and production technologies available to the agents in the...