Launching a new product usually involves uncertainty. The rapid development of e-commerce stimulates social learning in social networks, profoundly changing consumers\u27 behaviors. Online product reviews can be classified into first-party and third-party ones regarding publishing channels, but different manipulations of first-party reviews could affect their credibility. Moreover, third-party reviews may provide solutions to above mentioned problems to some extent. However, many prior studies have been conducted on how single-channel social learning affects pricing schemes, ignoring effects of multichannel social learning and fake reviews. This study aims to fill up the gaps by constructing stylized mathematical and empirical models to inv...