Identification and Estimation of Online Price Competition With an Unknown Number of Firms
研究在竞争企业数量未知时，如何识别和估计在线价格竞争模型，并用英国个人数字助理数据模拟竞争对不同消费者群体价格的差异化影响。
Summary This paper considers identification and estimation of a general model for online price competition. We show that when the number of competing firms is unknown the underlying parameters of the model can still be identified and estimated employing recently developed results on measurement errors. We illustrate our methodology using UK data for personal digital assistants and employ the estimates to simulate competitive effects. Our results reveal that heightened competition has differential effects on the prices paid by different consumer segments. Copyright © 2015 John Wiley & Sons, Ltd.