【摘要】A model of consumer behavior is developed in which, owing to a nonconvexity in the transportation cost of obtaining the desired commodity bundle, consumers are attracted to marketplaces offering a lager variety of commodities. Impacts on marketeers’ equilibrium locations and pricing strategies are discussed in two examples.”Agglomeration economies” naturally emerge, leading sellers to associate spatially and charge higher (noncooperative) equilibrium prices than under locational monopoly, despite possibly increased competition. In general, equilibrium prices at one marketplace depend on the structure of the commodity bundle offered there. Differences in that bundle across marketplace lead to a purely demand induced equilibrium price dispersion for the same commodity.

【文献来源】Konrad Stahl. The Bell Journal of Economics, 1982, 13(2):575-582.