00334    a2200109   4500001001000000005001700010008004100027245004300068100002100111700001900132773007300151ART_4638120260410161925.0260409a                                 10aBenefits of narrow business strategies1 aRotemberg, Julio1 aSaloner, Garth0 tThe American Economic Reviewg- Vol. 84, Nº 5 (dic. 1994)wREV16190