Prof. Lee is a professor at Singapore University of Social Sciences and is the deputy chairman of the Singapore Society of Economics. He is the founder of several other institutions, including the American College of the Left Bank, the Liberal Institute of Finance, and Ferrell Financial Group in Singapore. Prof. David Lee served as a managing director of several listed companies, and was also the chairman of the board of directors or a non-executive director of several listed companies. The book “Digital Currency” compiled by Prof. David Lee was published by Elsevier and received the American Library Association’s Outstanding Reference Book Award.