Introduction -- Evolution, irrationality, and perfectly competitive equilibrium -- Evolution, irrationality, and monopolistically competitive equilibrium -- Evolution and informationally efficient equilibrium in a commodity futures market -- Natural selection, random shocks, and market...

One of the core building blocks of traditional economic theory is the concept of equilibrium, a state of the world in which economic forces are balanced and in the absence of external influences the values of economic variables remain static. Many traditional equilibrium models, or equilibria,...

This paper builds an evolutionary model of an industry where firms produce differentiated products. Firms have different average cost functions and different demand functions. Firms are assumed to be totally irrational in the sense that firms enter the industry regardless of the existence of...