The failure of online endorsement systems in investment communities: evidence from Yahoo! Finance Available to Purchase

Dr Peng Xie is an assistant professor at the College of Business and Economics, California State University, East Bay. He received his Ph.D. in Business Administration and Management from Scheller College of Business at Georgia Institute of Technology. His research interest includes social media, cryptocurrency, financial technology (FinTech) and business analytics. He mainly uses econometrics, machine learning, text mining and other analytical models in his research. His works have appeared in journals such as Journal of Management Information Systems, Information and Management, Information System Frontiers and elsewhere.

Dr Hongwei Du is the Chair of the Department of Management, College of Business and Economics at California State University, East Bay. He holds a Ph.D. in Operations Research from Florida Institute of Technology, a M.S. in Computer Science from Bowling Green State University and a M.S. in System Engineering from Beijing Institute of Automation. His works have been published in the European Journal of Information Systems, the Journal of Information Technology Theory and Application, the California Journal of Operations Management, the International Journal of Innovation and Learning, the International Journal of Intercultural Information Management, the International Journal of Information and Decision Science, the International Journal of Electronic Healthcare, the Journal of Economic Studies, the Journal of Supply Chain and Operations Management and Financial Innovation.

Dr Jiming Wu is a Full Professor and Interim Associate Dean in the College of Business and Economics at California State University, East Bay. He received his B.S. from Shanghai Jiao Tong University, M.S. from Texas Tech University and Ph.D. from the University of Kentucky. His research interests include Big Data analytics, IT adoption and acceptance and computer and network security. His work has appeared in MIS Quarterly, Journal of the Association for Information Systems, European Journal of Information Systems, Information and Management, Decision Support Systems and elsewhere.

Dr Ting Chen is an assistant professor of accounting in the Accounting and Finance Department of the College of Management, University of Massachusetts Boston. Prior to joining UMass Boston, she was an assistant professor of accounting at Baruch College, City University of New York. Dr Chen's research interests are in voluntary disclosure, accounting information in asset valuation, the behavior of financial analysts and internal control systems. Her research has been published in top journals such as Journal of Accounting and Economics, Journal of Accounting Research, The Accounting Review and Review of Accounting Studies.