Model Entry and Exit in a Differentiated-Product Industry: The Personal Computer Market
分析个人电脑市场中企业推出新模型和退出旧模型的决策，发现新进入者和在位者在模型空间定位上存在差异，且定价过高和公司声誉显著影响模型退出概率。
Entry and exit literature focuses almost exclusively on firm-level decisions, leaving out an important aspect of firm behavior: whether to introduce new models while the firm produces similar goods, and where to locate them in the existing product space, taking into account own models and the possibility of new entry. This paper analyzes model entry and exit decisions in the case of the personal computer market. Differences in new model spatial location between incumbents and entrants are found, while both model over- pricing and firm reputation are found to be significant in the probability of model's exit estimation.