In 1986 James M. Buchanan (1919-2012) was awarded the Alfred Nobel Memorial Prize in Economic Sciences. Universally respected as one of the founders of the “public choice” school of economics, he is the author of numerous books and hundreds of articles in the areas of public finance, public choice, constitutional economics and economic philosophy. He is best known for such works as The Calculus of Consent, The Limits of Liberty, The Power to Tax, and The Reason of Rules. Buchanan has devoted himself to the study of the contractual and constitutional basis for the theory of economic and political decision making.
See also at Econlib: the Concise Encyclopedia of Economics entry on Buchanan