Catastrophic events can dramatically alter existing social and economic relationships. The consequences can be long-lasting and give rise to heterogeneity of behavior across populations. We investigate the impact of a large negative shock on altruism, trust and reciprocity in 30 small Honduran...

We present a set of experimental coordination games with a payoff-dominant and a risk-dominant Nash equilibrium. We examine how much local interaction structures affect players' strategy choices. Our three major observations are the following: First, local interaction with open neighborhoods...

In a series of experimental effort games each of two players may choose between remuneration based on either private or team effort. Although at least one of the players has the subgame perfect equilibrium strategy to choose remuneration based on private effort, we frequently observe team...

A conjecture of Laffer, which had considerable influence on fiscal doctrine, is that tax revenues of a Leviathan state eventually decrease when the tax rate exceeds a threshold value. We conduct a real effort experiment, in which a worker is matched with a non-working partner, to elicit the...

We examine decision making in a simple supplier-retailer wholesale price contract in the experimental economics laboratory. We observe wholesale prices and order quantities below the game-theoretical predictions. The supply chain's efficiency is as predicted but profits are more equitably...

In an experimental 2x2 coordination game with two strict equilibria we observe that, in contrast to equilibrium selection theory (Harsanyi and Selten 1988), only half of the subjects choose the strategy that relates to the payoff- and risk-dominant equilibrium. We propose modified risk dominance...

We describe non-cooperative game models and discuss game theoretic solution<br/>concepts. Some applications are also noted. Conventional theory focuses on the<br/>question ‘how will rational players play?’, and has the Nash equilibrium at its core.<br/>We discuss this concept and its interpretations, as...

We report the results of a series of experimental Bertrand duopolies where firms have convex costs. Theoretically these duopolies are characterized by a multiplicity of Nash equilibria. Using a 2x2 design, we analyze price choices in symmetric and asymmetric markets under 2 information...

AMS classifications: 47H10; 54H25; 55M20; 90C26; 90C33; 91B50;

Tucker's well-known combinatorial lemma states that for any given symmetric triangulation of the n-dimensional unit cube and for any integer labeling that assigns to each vertex of the triangulation a label from the set f§1;§2; ¢ ¢ ¢ ;§ng with the property that antipodal vertices on the...