1Allen N. Berger,David B. Humphrey.Efficiency of financial institutions: International survey and directions for future research[J].European Journal of Operational Research.1997(2)
2Leibenstein H.Allocative efficiency vs X-efficiency. The American Economist . 1966
3S.Carbo,E. P. M.Gardener,J.Williams.Efficiency in Banking: Empirical Evidence from the Savings Banks Sector[J]. The Manchester School . 2002 (2)
4Milind Sathye.X -efficiency in Australian banking: An empirical investigation[J]. Journal of Banking and Finance . 2001 (3)
5Frances X Fret,Patrick T. Harker,Larry W. Hunter.Inside the Black Box: What Makes a Bank Efficient?. The Wharton Financial Institutions Center 97-20-C . 1998