Israilevich, Guillermo - In: Revista de Analisis Economico – Economic Analysis Review 23 (2008) 2, pp. 121-141
The impact of product variety on welfare has received little attention in the electronic commerce literature. The … problem with product variety is that more variety does not necessarily imply higher welfare. This paper finds the conditions … under which more variety, if caused by lower fixed costs, implies an unambiguous welfare gain. A calibration to the market …