关键词: 隐私成本, 数据驱动创新, 隐私监管, 福利分析

Abstract: To effectively release the digital dividend in digital economy，it is important to reasonably balance the contradiction between datadriven innovation and privacy infringement This paper proposes a framework to analyze the equilibrium results when firms engage in datadriven innovation and consumers are concerned about privacy，and further analyzes the welfare effects of two types of privacy regulation The result shows that neither the level of data nor data processing capacity that firms choose is adequate from a welfare perspective If consumers choose the level of data，they will choose even less data，thereby reducing firms’ data processing capacity and lowering consumer surplus and social welfare However，if the government regulates the level of data，it can effectively encourage firms to improve data processing capacity，thereby increasing consumer surplus and social welfare Such findings provide theoretical guidance and policy basis for the government to scientifically regulate firms’ data collecting behavior

Key words: privacy cost, datadriven innovation, privacy regulation, welfare analysis