Consumer privacy and serial monopoly
研究了当消费者偏好受过去消费影响且每期更换卖家时，消费者隐私对社会福利、消费者剩余和卖家利润的影响，发现隐私能提升整体福利但损害首期卖家利润。
Abstract We examine the implications of consumer privacy when preferences today depend upon past consumption choices, and consumers shop from different sellers in each period. Although consumers are ex ante identical, their initial consumption choices cannot be deterministic. Thus, ex post heterogeneity in preferences arises endogenously. Consumer privacy improves social welfare, consumer surplus and the profits of the second‐period seller, while reducing the profits of the first period seller, relative to the situation where consumption choices are observed by the later seller.