With the popularity of online shopping, a large body of studies have paid much attention to the factors influencing consumers’ information seeking and assessing. However, theoretical development and empirical testing are still not enough to explain this phenomenon, that is, during the information seeking and assessing process, what factor play a decisive role is a question needed to be deeply explored. This study, thus, aim to understand the impact of the attributes of online reviews on consumer. In addition, we find that review volume (RV: a heuristic factor) have direct impacts on perceived usefulness (PU) and attitudes (ATT), while source credibility (SC: another heuristic factor) only influences the perceived usefulness (PU), but no effects on attitudes (ATT). As for the moderating effects, perceived social-psychological risk (PSR) moderates the effects of both reviews volume (RV) and source credibility (SC) on perceived usefulness and attitudes. We explored the reasons underlying those findings , and also discuss implications for both researchers and practitioners.

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Many studies suggest that leaders should discourage or prevent the spread of negative workplace gossip (NWG), but yet little is understood about the relationship between leaders and their subordinates' NWG. This study interprets the linkage between authentic leadership and two types of NWG via individuals' perceptions of justice based on fairness heuristic and justice views. The data were collected in a three-stage process from a large information technology corporation in China. The findings revealed that interactional justice mediated authentic leadership and NWG's relationship with supervisors and the relationship between authentic leadership and NWG about coworkers. The procedural justice mediated the relationship between authentic leadership and NWG about supervisors, while it didn't mediate the relationship between authentic leadership and NWG about coworkers. The theoretical and practical implications are discussed.

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In this paper we propose a holistic view on the behavior of sharing information of Wechat users. We posit not only factors that have been studied before (traditional social factors based on rational action theory) but also social network factors (i.e., trust and habit of users for their sharing information in Wechat) could influence the behavior of sharing information. This study attempts to contribute to the understanding of information sharing behavior in Wechat context. Literature Review Research of Relative Wechat. Since Wechat has invented for just more than 3 years, many studies have discussed the Wechat. For example, they focused on Wechat's advantages comparing with other traditional media, Weibo, M-talking and some similar tools, Wechat's propagation mode, the reason for the rise of Wechat, Wechat's marketing or propagation value, implementation means, new opportunities for "we media" brought by Wechat. Although their research perspectives are different from users' information sharing intention, some of the listed contents about Wechat's features can help us acquaint with Wechat's sharing attributes in an indirect way. For example, Zhang (2013) points out that the combination of Wechat and smart phones enlarges the function of Wechat get, and a large number of information and knowledge also disseminate extensively through the Wechat [1]. From the