Profit maximization mitigates competition

Summary We consider oligopolistic markets in which the notion of shareholders' utility is well-defined and compare the Bertrand-Nash equilibria in case of utility maximization with those under the usual profit maximization hypothesis. Our main result states that profit maximization leads to less price competition than utility maximization. Since profit maximization tends to raise prices, it may be regarded as beneficial for the owners as a whole. Moreover, if profit maximization is a good proxy for utility maximization, then there is no need for a general equilibrium analysis that takes the distribution of profits among consumers fully into account and partial equilibrium analysis suffices.We wish to thank Hildegard Dierker and Nina Maderner for many helpful comments. This research was partially supported by the Danish Social Science Research Council. E. Dierker is grateful to the Department of Economics, University of Copenhagen, for its outstanding hospitality. B. Grodal appreciates the support from the Department of Economics, University of Vienna.