Edgar L. Feige is an emeritus professor of economics at the University of Wisconsin–Madison. His research focus is on underground economies and tax reform for the 21st century, specifically the Automated Payment Transaction tax (APT tax);
- The Demand for Liquid Assets, Prentice Hall, 1963;
- The Underground Economies: Tax Evasion and Information Distortion, Cambridge University Press, 1989
- Underground Economies in Transition: Unrecorded Activity, Tax Evasion, Corruption and Organized Crime, Ashgate, 1999.
- Taxation for the 21st century: the automated payment transaction (APT) tax.