Abstract: While mobile commerce has brought benefits to users, mobile service providers and society, it has also caused serious privacy infringements. It has greatly reduced users’ willingness to disclose information, and exploring the formation mechanism of users' willingness to disclose information will help companies to make scientific and efficient privacy management decisions and promote users to disclose personal information. Based on the theory of Communication Privacy Management (CPM), a model of the influence mechanism of mobile business users' willingness to disclose information is constructed from the three dimensions of users, social environment and platform. With mobile business users as the survey object, the PLS-SEM method is used to conduct empirical analysis on 306 valid data. The study finds that both privacy control and privacy risk significantly affect the willingness to disclose information; privacy tendency in the user dimension negatively affects privacy control, and positively affects privacy risk; descriptive norms and subjective norms in the social environment dimension both significantly positively affect privacy risk; the privacy policy in the platform dimension positively affects privacy control and negatively affects privacy risks. The research results suggest that mobile service providers should pay attention to the role of user dimensions and social environment dimensions in users’ willingness to disclose information, maintain the advantageous role played by privacy policies in the platform dimension, and better improve user privacy control and reduce privacy risks.

Key words: Mobile commerce, Social environment, Risk-control assessment, Information disclosure intention, Communication privacy management(CPM), User research