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Purpose – The purpose of this paper is to investigate the influence of social media on employees’ work performance, as well as the underlying mechanism for how they create value at work. Design/methodology/approach – Based on media synchronicity and social capital theories, the authors propose that social media can foster employees’ social capital and subsequently facilitate knowledge transfer. Both social capital and knowledge transfer help promote work performance. Specifically, the authors adopt shared vision, network ties and trust to represent, respectively, the cognitive, structural and relational dimensions of social capital. The research model is tested using data collected from 379 Chinese working professionals. Findings – The empirical results reveal that social media can promote the formation of employees’ social capital indicated by network ties, shared vision and trust, which, in turn, can facilitate knowledge transfer. Shared vision and knowledge transfer positively influence work performance. Although network ties and trust do not have a direct impact on work performance, the influence is partially mediated by knowledge transfer. Practical implications – For organizations that wish to build knowledge networks in the workplace, connecting experts with various social media can effectively complement other knowledge management technology. Further, managers should encourage employees to consciously exploit the byproducts created via social media, e.g., social capital, to promote knowledge exchange. Originality/value – The integration of media synchronicity and social capital theories offers a new theoretical lens and reasonable explanations for investigating communication performance. The research offers empirical evidence regarding how the influence of social media on work performance is transmitted through social capital and knowledge transfer. The authors quantify social media’s benefits for organizations, providing managers an impetus to deploy them in the workplace with optimistic expectation.

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Purpose The purpose of this paper is to investigate the mechanism of building trust during the transition from online payment to mobile payment, as well as to examine the effect of trust on the satisfaction and continuance intention of mobile payment users. Based on trust transfer theory, this study proposes that trust in online payment (i.e. trust in source) and two source-target relationship factors, namely, perceived similarity and entitativity, affect trust in mobile payment (i.e. trust in target). In turn, the resulting trust influences user satisfaction and continuance intention toward mobile payment in an online-mobile payment context. Design/methodology/approach The model was empirically tested on data collected from 219 mobile payment users of a famous payment enterprise in China. Findings The results indicated that the trust transfer process positively influences the continuance intention of mobile payment through satisfaction. Satisfaction is an important factor affecting continuance intention. Moreover, trust in online payment, perceived similarity, and perceived entitativity between online and mobile payments can positively influence trust in mobile payment. Originality/value This study investigates the post-adoption usage of mobile payment from the trust transfer perspective. It focuses on the trust-building process and emphasizes the importance of trust on the continuance intention toward mobile payment in an online-mobile payment context.