Professor Yung specializes in the field of security issuance. He has published on the role of underwriters and insiders in initial public offerings, and on structure and informational problems faced in the venture capital industry. He has taught courses in corporate finance and investments at the undergraduate through doctoral levels.

Professor Yung has published in leading finance journals, including Journal of Financial Economics; The Review of Financial Studies; Journal of Financial and Quantitative Analysis; Management Science and Review of Finance. He has been an invited speaker at numerous universities and government agencies and at national and international conferences. CFA Institute awarded him the Graham and Dodd Award of Excellence and the Readers' Choice Award for his practitioner-oriented article “The Misuse of Expected Returns.”