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Dynamic price competition with consumption externalities

机译:具有消费外部性的动态价格竞争

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The dynamic price competition in a horizontally differentiated duopoly when consumers value previous market shares is analyzed. The conditions for the existence of stable Markov-Perfect Equilibrium (MPE) in linear strategies are established. When they exist, the optimal pricing policies suggest that a firm with a higher previous market share charges a higher price, all else equal. It is possible to observe pricing below cost for some periods. In the steady state, the MPE leads to a more competitive outcome (lower prices) than the case where there are no consumption externalities. The model can produce outcomes where the steady state is reached very slowly which provides an alternative explanation for slow emergence of competition when entrants face an established incumbent: It may be due to persistence in consumer tastes.
机译:分析了当消费者重视先前的市场份额时,在水平差异化双头垄断中的动态价格竞争。建立了线性策略中存在稳定的马尔可夫-完美均衡(MPE)的条件。当它们存在时,最优定价策略表明,先前市场份额较高的公司收取的价格更高,其他所有条件都相同。在某些时期内可能会观察到低于成本的定价。与没有消费外部性的情况相比,在稳定状态下,MPE的结果更具竞争力(价格更低)。该模型可以在达到非常缓慢的稳态时产生结果,这为进入者面临既定的竞争者时竞争缓慢出现提供了另一种解释:这可能是由于消费者品味的持续存在。

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