Article consultable sur : http://ejess.revuesonline.com/gratuit/EJESS26_1-2_02-Introduction.pdfInternational audienceVeblen’s contribution to economic theory has received renewed interest (see, among others, Tilman, 2003), with particular reference to two distinct aspects. First, his approach to institutions – defined as a “special method of life and of human relations” (Veblen, [1889] 1975, 188) – has been re-proposed within the so-called new Institutionalism, with the aim of presenting a theory of economic behaviour (where instincts, habits, customs and transaction costs play a pivotal role) opposed to the mainstream “rational choice” view (see Hodgson, 1988). Second, attention has been devoted to his arguments on “conspicuous consumption...