00375    a2200109   4500001001000000005001700010008004100027245008300068100002500151773007200176999001700248ART_1191420260410161901.0260409a                                 10aMoral hazard, adverse selection, and the optimal provision of social insurance1 aWhinston, Michael D.0 tJournal of public economicsg- Vol. 22, Nº 1 (oct. 1983)wREV11485  c25943d25943