During the COVID-19 pandemic, online health platforms and physicians’ online knowledge sharing played an important role in public health crisis management and disease prevention. What influences physicians’ online knowledge sharing? From the psychological perspective of stimulus–response, this study aims to explore how patients’ visit and patients’ consultation influence physicians’ online knowledge sharing considering the contingent roles of physicians’ online expertise and online knowledge sharing experience. Based on 6-month panel data of 45,449 physician–month observations from an online health platform in China, (...) the results indicate that both patients’ visit and patients’ consultation are positive related to physicians’ online knowledge sharing. Online expertise weakens the positive effect of patients’ consultation on physicians’ online knowledge sharing. Online knowledge sharing experience weakens the positive relationship between visit of patient and physicians’ online knowledge sharing, and enhances the positive relationship between patients’ consultation and physicians’ online knowledge sharing. This study contributes to the literatures about stimulus–response in psychology and knowledge sharing, and provides implications for practice. (shrink)

This study investigates how the explicitly anti-prosocial and anti-pro-environmental speech by political elites affects firms’ environmental and social (E&S) performance. Using the case of the Donald J. Trump (DJT) campaign for president in the United States when he gave out controversial and inflammatory remarks, including those regarding E&S issues, we find that local firms’ E&S performance decreased significantly in the year following DJT’s presidential campaign rally compared with firms in other geographic areas where there was no DJT’s presidential campaign event. (...) A further test indicates that the change in firms’ E&S performance can be driven by DJT remarks’ influence on local social norms shift. Furthermore, we show that the post-rally decrease of local firms’ E&S performance is more pronounced for local firms that operate primarily locally or local firms that are more sensitive to political uncertainty. Taken together, these findings indicate that political events such as political elites giving remarks can affect firms’ E&S performance. (shrink)