Guarda, Paolo; Rouabah, Abdelaziz; Vardanyan, Michael - In: Journal of Productivity Analysis 40 (2013) 2, pp. 185-195
The bank efficiency literature lacks an agreed definition of bank outputs and inputs. This is problematic given the long-standing controversy concerning the status of deposits, but also because bank efficiency estimates are known to be affected by the inclusion of additional outputs such as...