1. What is going on with studies on banking efficiency?;de Abreu;Res. Int. Bus. Finance,2018
2. Some models for estimating technical and scale inefficiencies in data envelopment analysis;Banker;Manag. Sci.,1984
3. Corporate social responsibility and bank efficiency;Belasri;J. Multinat. Financ. Manage.,2020
4. Branch banking and economies of scale;Benston;J. Finance,1965
5. Bank scale economies, mergers, concentration, and efficiency: the U.S. experience;Berger,1994