Online advertising and privacy
研究在线平台是否允许广告商获取消费者信息（披露）或保护隐私（隐私）的决策，分析披露如何改善广告匹配但可能提高产品价格，并给出不同情境下的最优选择。
An online platform auctions an advertising slot. Several advertisers compete in the auction, and consumers differ in their preferences. Prior to the auction, the platform decides whether to allow advertisers to access information about consumers (disclosure) or not (privacy). Disclosure improves the match between advertisers and consumers but increases product prices, even without price‐discrimination. We provide conditions under which disclosure or privacy is privately and/or socially optimal. When advertisers compete on the downstream market, disclosure can lead to an increase or a decrease in product prices depending on the nature of the information.