Gordon Tullock

His work had an immense influence on political science and legal scholarship, as well as economics. Many economists believe that Tullock deserved to share the Nobel Prize with Buchanan, since his contributions to the development of public choice were of at least comparable significance. As Tyler Cowen notes, Tullock became one of the greatest economists of his time, even though he did not have even an undergraduate degree in economics, and only took one economics course in his life.

http://www.washingtonpost.com/news/volokh-conspiracy/wp/2014/11/05/gordon-tullock-rip/