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...

We study how people's predisposition towards altruism affects their behavior in a voluntary contributions public good experiment. We investigate whether a high level of contributions can be sustained in groups of subjects who have been pre-selected on the basis of their altruistic inclinations....

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...