TY - UNPD A1 - Sanner, Helge T1 - Price responses to market entry with and without endogenous product choice N2 - Textbook wisdom says that competition yields lower prices and higher consumer surplus than monopoly. We show in two versions of a simple location-product differentiation model with and without endogenous choice of products that these two results have to be qualified. In both models, more than half of the reasonable parameter values lead to higher prices with duopoly than with monopoly. If the product characteristics are exogenous to the firms, consumers may even be be better off with monopoly in average. T3 - Volkswirtschaftliche Diskussionsbeiträge - 81 Y1 - 2007 UR - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/1311 UR - https://nbn-resolving.org/urn:nbn:de:kobv:517-opus-14399 ER -