“…Fourth, a host of individual differences among users were found to influence participation in knowledge exchange activities. They include users' enjoyment of knowledge exchange (Wasko & Faraj, ; Marett & Joshi, 2009; Aalbers et al ., ), affect toward knowledge exchange (Bateman et al, ; Wu et al, ), habit of knowledge exchange (e.g. He & Wei, ), level of expertise and reputation (Marett & Joshi, 2009; Wasko et al, ; Kang & Hau, ).…”