Competitive equilibria are shown to exist in two-object exchange economies with indivisibilities and additive complementarities in agent valuations between objects, provided that complementarities are common across agents. We further investigate whether the competitive equilibrium can be...

The paper combines the optimal gerrymandering approach in political science with the “fair cake division” results in mathematics and economics to consider optimal partisan gerrymandering schemes on a given territory. We analyze existence and properties of an optimal districting map for a...

The study investigates collusion-nonfacilitating features of one-sided auctions. We report the results of oral nondescending bid auction experiments in which the strict bid improvement rule was absent, and compare them with the results of sealed bid auction experiments. In the sealed bid...

In an ongoing organization, such as a large law partnership, employees are motivated not only by current rewards but also by the prospect of promotion, and the opportunity to influence policy and make rules in the future. This leads to a dynamic programming problem in contract design. We model...

We experimentally study bidder collusion in open ascending auctions for multiple objects. The project is based on the theoretical results by Brusco and Lopomo (1999), who give theoretical support for the following claims: (1) simultaneous ascending bid auctions can be vulnerable to collusion in...

We study how people's predisposition towards altruism, as measured by tools developed by psychologists, affects their behavior in a voluntary contributions public good experiment. Earlier experiments provide evidence against the strong free rider hypothesis; however, contributions to the public...

This paper combines the optimal gerrymandering approach in political science with the 'fair cake division' results in mathematics and economics to consider optimal partisan gerrymandering schemes on a given territory. The author analyzes existence and properties of an optimal districting map for...

We study bidder collusion and test the power of payoff dominance as an equilibrium selection principle in experimental multi-object ascending auctions. In these institutions low-price collusive equilibria exist along with competitive payoff-inferior equilibria. Achieving payoff-superior...