Professor Kuenne is a leading authority in the field of economic theory, having made significant contributions to the fields of general equilibrium theory, industrial organization and regional science. This volume focuses on the development and exposition of a new theory of oligopoly which is asserted to have certain advantages over game theoretic approaches. It is designed to be opertional, to be capable of fitting within general equilibrium frameworks, to permit multiobjective optimization by firms, and to be soluble by nonlinear programming techniques. Most importantly, Professor Kuenne develops themes concerning the need to incorporate within oligopoly a blending of the cooperative and competitive that typifies the price strategies of oligopolists within most industries with small numbers of competitors. Unlike game theory, this approach permits analysis of the peculiar socioeconomic power structure that develops within oligopolies and constrains membersa decision--making freedom. This power structure can be derived exogenously or endogenously in the modelling. The theory is developed fully with extensive empirical application, particularly to decision making within the OPEC petroleum cartel in the 1970s.