Much research has examined the positive effects of legitimacy spillover. However, negative events may reduce the extent of legitimacy, which may in turn spillover to affect the legitimacy of important stakeholders including alliance partners. This study examines incidents of regulative legitimacy violation and focuses on the effect such incidents have on the alliance partners of the perpetrating organizations. We specifically examine three types of such violations—administrative law, criminal law, and civil law—to show that the loss of regulative legitimacy negatively influences (...) the stock market performance of alliance partners. More interestingly, not all corrective actions and repair efforts are equally impactful. We show that the effect of repair efforts by the perpetrating firm on the alliance partner differ depending on the nature of those violating incidents. (shrink)

To solve the problem of user privacy disclosure caused by attacks on anonymous areas in spatial generalization privacy protection methods, a K and P Dirichlet Retrieval method based on k-anonymity mechanism is proposed. First, the Dirichlet graph model is introduced, the same kind of information points is analyzed by using the characteristics of Dirichlet graph, and the anonymous set of users is generated and sent to LBS server. Second, the relationship matrix is generated, and the proximity relationship between the user (...) position and the target information point is obtained by calculation. Then, the private information retrieval model is applied to ensure the privacy of users’ target information points. Finally, the experimental results show that the KPDR method not only satisfies the diversity of l 3 / 4, but also increases the anonymous space, reduces the communication overhead, ensures the anonymous success rate of users, and effectively prevents the disclosure of user privacy. (shrink)