期刊名称：Cardiff Economics Working Papers / Cardiff University, Cardiff Business School
印刷版ISSN：1749-6101
出版年度：2011
卷号：2011
出版社：Cardiff University
摘要：This paper analyses how product differentiation affects the volume of trade under duopoly using Shubik-Levitan demand functions rather than the Bowley demand functions used by Bernhofen (2001). The Shubik-Levitan demand functions have the advantage that an increase in product differentiation does not increase the size of the market as happens with the Bowley demand functions. It is shown that the volume of trade in terms of quantities is decreasing in the degree of product differentiation when the trade cost is relatively low, but increasing in the degree of product differentiation when the trade cost is relatively high.
