He has a Ph.D. from the KAIST Business School (2006) and was with the MIT Center for Collective Intelligence as a postdoctoral fellow in 2006 and a visiting scholar in 2011. His research areas are utilizing intelligent techniques and harnessing collective intelligence in business settings, and analyzing effects of intelligent aids in e-commerce and m-commerce. His papers have been published in International Journal of Electronic Commerce, Decision Support Systems, Expert Systems with Applications, Information Systems Frontiers, and other journals.