e‐Commerce platforms and self‐preferencing
综述了电子商务平台的文献，重点讨论亚马逊的反垄断争议，分析混合市场商业模式中双重模式和推荐算法对福利的影响，指出自我优待策略的利弊复杂，不能简单下结论。
Abstract I review the literature on eCommerce platforms with particular emphasis on the antitrust debate on Amazon. The business model of hybrid marketplaces is based on monetization through fees on third party sellers hosted on the platform and direct margins on own products. Recent theoretical and empirical work on endogenous marketplace structures has analyzed the welfare impact of the dual mode and of recommendation algorithms that have been associated with self‐preferencing strategies. The trade offs are complex and one cannot easily conclude that Amazon entry is biased to expropriate third party sellers or that a ban on dual mode, self‐preferencing or copycatting would benefit consumers.