On the Uniqueness of Equilibrium in Cournot Oligopoly and Other Games

摘要: Abstract In an average surplus sharing game, such as a Cournot oligopoly, group of agents share production process. Each contributes amount input to the process, and output is divided in proportion contributed. Uniqueness equilibrium needed for any type comparative static analysis. However, general uniqueness results concave games have restrictive assumptions on preferences technology; specifically, conditions become more difficult meet number players increases. A new theorem with easily interpretable given which independent players. Journal Economic Literature Classification Numbers: C70, C72, D43.