Question-Answer (Q&A) forums are gaining popularity as a user-engagement tool to drive traffic on multi-service portals. In a platform market model, demand-side users seek answers from the supply-side users, since such answers can indicate value offered, reduce buyer uncertainty and offer social...

Two commonly used pricing models in the supplier-retailer setting are the agency pricing model and the wholesale pricing model. In the agency pricing model, the supplier sets the price, whereas in the wholesale pricing model, the price is set by the retailer. In this paper, we focus on the...

Online reviews and discussions play a significant role in influencing decisions made by users in day-to-day life. However, the presence of reviewers who deliberately post fake or deceptive reviews for financial or other gains negatively impacts both users and businesses. Unfortunately,...

The performance of prediction markets depends crucially on the quality of user contribution. A social media-based prediction market can utilize aspects of social effects to improve users' contribution quality. Drawing upon literature from diverse areas such as prediction markets, knowledge...