Market Leadership With a Sequence of History Dependent Patent Races
扩展了Vickers(1986)的模型，研究企业技术历史如何影响市场结构演变，分析技术领导地位是随时间增强还是被对手追赶，并纳入增量创新情形。
This note extends the results of J. Vickers (1986), examining the consequences on the evolution of market structure of having payoffs--and thus profits and incentives--which depend on the technological history of the firms. In a simple duopoly model, the author determines the conditions under which the technological leadership of a firm is strengthened over time (increasing dominance) or is progressively eroded by the rival (catching up). This reformulation of Vickers' model can also accommodate incremental innovations, i.e., technological changes that do not allow the innovator to overtake the rival. Copyright 1989 by Blackwell Publishing Ltd.