Abstract
Enterprises are aware of the important value of social resources with the era of digital economy and begin to pay attention to the social commerce combining social networks with traditional e-commerce. However, social commerce faces the problem of social media and traditional e-commerce. Based on the Stimulus-Organism-Response (SOR) framework, this study explores how users' perceived overload (information, system feature and social overload) affects their continuance intention mediated by two perceived states (social support and perceived risk). The results show that only information overload and system feature overload significantly affect informational support and emotional support, while social overload and system feature overload significantly affect perceived risk. In addition, only emotional support and perceived risk affects users' continuance intention. Both the theoretical and practical implications are discussed.