Iehlé, Vincent; Forges, Françoise - Université Paris-Dauphine (Paris IX) - 2014
We identify a natural counterpart of the standard GARP for demand data in which goods are all indivisible. We show that the new axiom (DARP, for "discrete axiom of revealed preference") is necessary and sufficient for the rationalization of the data by a well-behaved utility function. Our...