Persistence of Leadership in Product Innovation

Harald Gruber

Journal of Industrial Economics, 1992, vol. 40, issue 4, 359-75

Abstract: In a firm model of vertical product differentiation, three distinct patterns of market shares emerge as an equilibrium outcome, reflecting three distinct strategies in respect of timing of the introduction of new products. The main novelty, relative to the existing literature on vertical product differentiation, lies in the incorporation of "learning by doing." This assumption generates stability of market share patterns over a sequence of product innovations. Copyright 1992 by Blackwell Publishing Ltd.

Date: 1992
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