This paper studies the effects of information exchange and social networks on the performance of prediction markets with endogenous information acquisition. We provide a game-theoretic framework to resolve the question: Can social networks and information exchange promote the forecast efficiency...

Information aggregation mechanisms are designed explicitly for collecting and aggregating dispersed information. An excellent example of the use of this "wisdom of crowds" is a prediction market. The purpose of our Twitter-based prediction market is to suggest that carefully designed market...

Opinion spammers exploit consumer trust by posting false or deceptive reviews that may have a negative impact on both consumers and businesses. These dishonest posts are difficult to detect because of complex interactions between several user characteristics such as review velocity, volume, and...

Although brands have widely adopted multiple marketing media, our understanding of how to effectively coordinate traditional advertising and social media marketing to improve business outcomes is still limited. This paper examines the role of product fit uncertainty in determining how the two...

Online platforms are prone to abuse and manipulations from strategic parties. For example, social media and review websites suffer from sentiment manipulations, manifested in the form of opinion spam and fake reviews. The consequence of such manipulations is the deterioration of information...

An increasing number of companies start to use corporate online communities as a new information technology tool to facilitate internal knowledge sharing. The corporate community also offers companies a novel source to understand the operations such as workforce management. Little is known,...