n overview of the landmark contributions of Robert J. Aumann, winner of the 2005 Nobel Memorial Prize in Economic Sciences.

We derive the existence of a Walras equilibrium directly from Nash's theorem on noncooperative games. No price player is involved, nor are generalized games.

We describe a system for bilateral negotiations in which artificial agents aregenerated by an evolutionary algorithm (EA). The negotiations are governed bya finite-horizon version of the alternating-offers protocol. Several issuesare negotiated simulataneously. We first analyse and validate the...

This paper highlights the monopoly firms´ commitments for goods requiring high maintenance expenditure, such as elevators, televisions and computers. A guarantee time limit model to maintain these special goods is presented in this paper. Based on this model, several types of commitments with...

Innovation is an important topic in economics. This paper highlights duopoly innovation under the Hotelling model with game theory approaches. This paper argues that market power, as measured by the cost advantage of a dominant firm over its rival, serves to enhance the incentive to innovate in...

Innovation is an important topic in economics. This paper highlights duopoly innovation under the Hotelling model with game theory approaches. This paper argues that market power, as measured by the cost advantage of a dominant firm over its rival, serves to enhance the incentive to innovate in...

Transport cost is second in importance after production cost in industry. It is the purpose of the present paper to study the impact of information sharing and contractual instruments between a supply chain and its transport suppliers. After reviewing the literature, we propose a model to...

This essay deals with the contribution of Seitz and Stackelberg on oligopoly. Stackelberg's theory on price leadership has been taken up by Seitz in his dissertation of 1965. The author summarizes the debate in Germany in the beginning of the sixties on oligopoly theory between Krelle, Ott,...

In this article, we consider how important developments in game theory have contributed to the theory of industrial organization. Our goal is not to survey the theory of industrial organization; rather, we consider the contribution of game theory through a careful discussion of a small number of...

A firm with stochastic demand can rely on hired hands when demand is low and rent additionallabour when demand is higher. For high demand this implies the co-employmentof hired hands, paid directly by the firm, and of rented hands who are paid by a rentalagency. This may cause severe problems if...