Before joining CUHK, he was an Associate Professor of Finance at the University of Toronto. His early research was mainly on behavioural finance. In his recent work, he conducts interdisciplinary studies of corporate finance and operations management, focusing on the role of supply-chain relationships on various aspects of corporate decisions. He is also interested in the role of buy-side and sell-side analysts in earnings conference calls. His papers have been published in the Journal of Financial Economics, Management Science, The Accounting Review, Journal of Financial and Quantitative Analysis, and Review of Finance.