论文标题
社会数据的经济学
The Economics of Social Data
论文作者
论文摘要
数据中介机构从单个消费者那里获取有关其偏好的信号。中介机构将信息转售为产品市场，其中公司和消费者将其选择量身定制为需求数据。各个数据的社会维度（消费者的数据都可以预测他人的行为）产生了数据外部性，可以降低中介机构获取信息的成本。当且仅在这样做时，中介可以最好地保留消费者身份的隐私，这会增加社交盈余。该策略使中介机构能够随着消费者数量的较大而捕获信息的总价值。
A data intermediary acquires signals from individual consumers regarding their preferences. The intermediary resells the information in a product market wherein firms and consumers tailor their choices to the demand data. The social dimension of the individual data -- whereby a consumer's data are predictive of others' behavior -- generates a data externality that can reduce the intermediary's cost of acquiring the information. The intermediary optimally preserves the privacy of consumers' identities if and only if doing so increases social surplus. This policy enables the intermediary to capture the total value of the information as the number of consumers becomes large.
