NETWORK EFFECTS AND SWITCHING COSTS IN THE U.S. WIRELESS INDUSTRY
通过动态消费者行为模型，分离了美国无线行业的转换成本和网络效应，发现转换成本在47至178美元之间，而市场份额提升15个百分点带来的平均支付意愿为每月8.50美元，忽略任一效应会导致反事实模拟的重大误差。
Abstract I estimate a model of dynamic consumer behavior to disentangle switching costs and network effects in the U.S. wireless industry. A detailed panel on market shares and churn rates, disaggregated by demographic consumer types and local markets, allows me to separately identify preference heterogeneity, switching costs, and a localized direct network effect. My switching cost estimates range from USD 47 to USD 178. The average willingness‐to‐pay for a 15 percentage point increase in a carrier's market share is USD 8.50 per month. Finally, I show that ignoring either one of the effects results in substantial errors when simulating counterfactuals.