John W. Welborn
Senior Lecturer in Economics
Senior Lecturer in the Political Economy Project
Senior Lecturer in Mathematics
Contact
Department(s)
Economics, Mathematics
Education
- Ph.D., Economics, George Mason University, 2013
- M.A., Economics, London School of Economics, 2005
- A.B., Economics modified with Math, Dartmouth College, 2002
- International Baccalaureate Diploma, Smoky Hill High School, 1998
Selected Publications
Welborn, John W., "Reg SHO at Twenty" (February 17, 2025). Available at SSRN: https://papers.ssrn.com/sol3/papers.cfm?abstract_id=5141255.
Stratmann, Thomas and Welborn, John W. "Informed short selling, fails-to-deliver, and abnormal returns." Journal of Empirical Finance 38.A (2016): 81-102, ISSN 0927-5398, https://doi.org/10.1016/j.jempfin.2016.05.006.
Stratmann, Thomas, and Welborn, John W. "The Options Market Maker Exception to SEC Regulation SHO." Journal of Financial Markets 16.2 (2013): 195–226. https://doi.org/10.1016/j.finmar.2012.04.002.
Stratmann, Thomas and Welborn, John W. "Exchange-Traded Funds, Fails-to-Deliver, and Market Volatility" (November 30, 2012). GMU Working Paper in Economics No. 12-59. Available at SSRN: https://ssrn.com/abstract=2183251 or http://dx.doi.org/10.2139/ssrn.2183251.
Selected Works & Activities
"Let's Talk Markets Live–Reg SHO Turns 20," Let's Talk Markets Live with Dave Lauer, February 2025
"Naked Shorts, FTDs, and the Overstock Case - AMA part 2 with John Welborn," Let's Talk Markets Live with Dave Lauer, April 2024
"Naked Shorts, FTDs, & RegSHO - Urvin's AMA with John Welborn," Let's Talk Markets Live with Dave Lauer, February 2024
Dartmouth's Best Professors, Dartmouth Review, 2023