Kötter, Michael; Poghosyan; Tigran - Deutsche Bundesbank <Frankfurt, Main> / … - 2008
Banks continue to dier in many ways, for instance with respect to business models,growth strategies, or nancial health. Neglecting these dierences confuses ine-ciency with heterogeneity while sub-sample estimation prohibits eciency comparisonsacross dierent samples. We use a latent class...