COURNOT-NASH AND BERTRAND-NASH EQUILIBRIA FOR A HETEROGENEOUS DUOPOLY OF DIFFERENTIATED PRODUCTS

摘要

Under Cournot-Nash and Bertrand-Nash equilibria, analytical expressions are found for outputs, prices, and profits in the case when all duopoly parameters of differentiated products are different. It is shown that the signs of differences between such outputs, prices, and profits depend on the complementarity or substitutability of products. The concepts of exogenous, endogenous, and asymmetric differentiated products are introduced.