THE ANALYTIC-SYNTHETIC DISTINCTION: A DEFENCE AND AN APPLICATION TO ECONOMIC THEORY August 2007 Prepared for an invited lecture at the Logic, Methodology and Philosophy of Science (LMPS) conference, Beijing, 9-15 August 2007 By Philippe MONGIN CNRS & HEC 1 rue de la Libération, F-78350 Jouy-en-Josas mongin@hec.fr Abstract. The first part of this paper revisits the classic distinction made in the philosophy of language between analytic and synthetic propositions, with a view of making it workable for the philosophy of science. It reexamines and tries to overcome some of the classic objections made by Quine and others, like Putnam. The second part applies the distinction to a microeconomic example taken from consumer theory, i.e., Hicks's classification of goods into substitutes, complements and independent goods. It argues against the classification from the distinction, using it as a way of posing semantic difficulties and dilemmas. This exercise is meant to illustrate its practical usefulness for economic philosophy and the philosophy of science more generally.