James M. Buchanan Biography James M. Buchanan is a Nobel Prize winning economist widely recognized for his work in the field of public choice theory and constitutional economics. Videos See More The Road to Serfdom Daniel Yergin, Edward H. Crane, James M. Buchanan, & Leonard P. Liggio Gordon Tullock and James Buchanan: The Calculus of Consent After 25 Years Gordon Tullock and James M. Buchanan Antitrust and Politics as a Process James M. Buchanan