Product Differentiation and the Gains from Trade under Bertrand Duopoly

David Collie and Roger Clarke

No 47, Royal Economic Society Annual Conference 2003 from Royal Economic Society

Abstract: In the literature on the welfare effects of free trade under imperfect competition, one important case seems to have been overlooked and that is the Bertrand duopoly model with differentiated products. Although many authors have analysed the welfare effects of free trade under Cournot duopoly, and demonstrated the possibility of losses from trade, there has been no thorough analysis of the welfare effects of free trade under Bertrand duopoly. This paper presents a thorough analysis of the welfare effects of free trade under Bertrand duopoly with differentiated products, and it is shown that there are always gains from trade.

Keywords: gains from trade; Bertrand Oligopoly (search for similar items in EconPapers)
JEL-codes: F12 (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-ind
Date: 2003-06-04
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Journal Article: Product differentiation and the gains from trade under Bertrand duopoly (2003)
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