Bos, Jaap W. B.; Heid, Frank; Koetter, Michael; Kolari, … - 2005
In this paper, we show the importance of accounting for heterogeneity among sample firms in stochastic frontier … assumptions regarding the nature of heterogeneity can be modeled and the extent to which the respective empirical specifications … different banks as being best or worst performers. Our main conclusion is that efficiency studies in general and bank efficiency …