Fringe firms: Are they better off in a heterogeneous market?
This paper analyzes a market with three firms. One of them is the dominant firm and the two others are fringe firms. The formulation of demand allows a comparison between price competition with heterogeneous and homogeneous products. Because a parameterization is required to assure that market size is the same in both scenarios, no general conclusions can be drawn. But it can be shown that in large markets with relatively inelastic demand for the fringe firms’ products and a cost advantage of the dominant firm, the fringe firms are better off if they produce a heterogeneous product.
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