Excerpts from a draft introduction of Till Düppe's and Roy Weintraub's new book, under revision for Princeton University Press, presently carrying the working title "Finding Equilibrium: Arrow, Debreu, McKenzie and the Transformation of Economic Theory


Yesterday, I had my first introductory economics seminar with my new students. At the end of this 4-hour marathon, which included the definition of economics and some preliminary knowledge on methodology, economic history and the history of the discipline, one of my students, who, I had noticed, stared at me quite incredulously during my speech, approached me and asked me in an aside: "Mr. Giraud, have you read the







