Klemperer, P., & Padilla, A. (1993). Do Firms' Product Lines Include Too Many Varieties, and Do Shops Open Too Many Days? CEPR.
Chicago-Zitierstil (17. Ausg.)Klemperer, P., und A. Padilla. Do Firms' Product Lines Include Too Many Varieties, and Do Shops Open Too Many Days? CEPR, 1993.
MLA-Zitierstil (9. Ausg.)Klemperer, P., und A. Padilla. Do Firms' Product Lines Include Too Many Varieties, and Do Shops Open Too Many Days? CEPR, 1993.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.