Note—A Numerical Approach to Deriving Long-Run Equilibrium Solutions in Spatial Positioning Models
扩展了Choi等人(1990)的数值方法，将竞争对手的长期产品重新定位策略纳入均衡分析，并引入产品搬迁成本概念，通过调整过程模拟企业战略行为，对电信设备制造商的实证数据进行了说明。
Choi, DeSarbo and Harker (1990) have recently proposed a numerical methodology for optimal product positioning and pricing under the assumption that the incumbents react only with price changes in the short run. The current note extends this methodology to include incumbents' long-run strategy of competitive product repositioning, in addition to price reactions. This note also introduces the notion of product relocation cost to the equilibrium analysis, and applies the concept of (full and partial) adjustment processes toward an equilibrium to model various strategic behavior of firms. This methodology is illustrated using an existing set of data collected for a major telecommunication equipment manufacturer.