The emergence of online platforms for professional services (e.g., cosmetic procedures) represents a natural progression of e-commerce from search and experience goods to credence goods. Due to the deeply consequential nature of professional services and the large information asymmetries between...

Group buying enables collective bargaining opportunity that individual buyers lack to negotiate prices with sellers. This potential negotiation capability has two opposing effects. On the one hand, the prospect of the group being able to negotiate price with its rival forces each seller to lower...

Understanding the degree of cannibalization and competition in online and offline markets is important to firms' product line designs. However, few empirical studies have measured both effects simultaneously or have examined the factors that determine the extent of cannibalization and...