关键词: 网络外部性, Hotelling模型, 转移成本, 锁定:兼容性

Abstract: Based on a two-stage Hotelling model,the paper regards network externalities and goods compatibility as the main factors that lock in the consumers,and analyzes the competitive strategies with switching cost and network externalities in the game of duopoly companies.

Key words: network externalities, Hotelling model, switching cost, lock-in, compatibility