We introduce a new solution concept for games in extensive form with perfect information: the valuation equilibrium. The moves of each player are partitioned into similarity classes. A valuation of the player is a real valued function on the set of her similarity classes. At each node a player...

We perform a further experiment to check the robustness of the main result in Rey Biel (2005) to sequential play. We find that Equilibrium predictions work even better when the same games are played sequentially: 85% of first movers choose the Equilibrium strategy and 85% of second movers best...

In a laboratory experiment, subjects played ten two-person 3x3 constant sum games and stated beliefs about the frequencies of play by their opponents. Contrary to previous experimental evidence, game-theoretical predictions work well: 80% of actions coincided with Nash equilibrium, subjects were...

I examine a Knightian model of entrepreneurial risk and investment where in addition to the self-selection process for choosing entrepreneurs, there is an evolutionary selection process over the representation of various risk attitudes. Under a standard evolutionary dynamic, rather than...

We propose a quantum-like description of markets and economics. The approach has roots in the recently developed quantum game theory. Quantum Zeno paradoxes and noncomutative quantum mecanics are also discussed.

We present the Progressive Second Price auction, a new decentralized mechanism for allocation of variable-size shares of a resource among multiple users. Unlike most mechanisms in the economics litterature, PSP is designed with a very small message space, making it suitable for real-time market...

The results of Ultimatum Game experiments are often quoted as evidence for the role of fairness in bargaining or in economic behaviour more generally. This paper argues that the observed fairness levels are contingent on the traditional experimental design where players are newly matched each...

We present a quantum solution to coordination problems that can be implemented with present technologies. It provides an alternative to existing approaches, which rely on explicit communication, prior commitment or trusted third parties. This quantum mechanism applies to a variety of scenarios...

In this note we study a very simple trial & error learning process in the context of a Cournot oligopoly. Without any knowledge of the payoff functions players increase, respectively decrease, their quantity by one unit as long as this leads to higher profits. We show that this process converges...

The present paper analyzes a network formation problem, mainly based on the framework presented in Bala and Goyal (2000). We depart from their assumptions in two crucial aspects. On one hand, we assume that connecting to an agent pays of not only for the number of connections that the agent can...