7Berger,Allen N.,profit-structure relationship in bankingtests of market power and efficient structure hypotheses[J].Journal of Money,Credit and Banking 1995:vol.27,No.2,May,404.431.
8Afanasiefl T.,P.Lhacer and M.Nakane.,The determinants of bank interest spreads in Brazil[J].Banco Centrail di Brazil Working Papers,2002.
9Guru,B.,Stauton,J.& Balashanmugam Determinants of commercial bank profitability in Mahysia[J].University Multimedia working papers,2002:174.198.
10Maudos,J.Market Structure and Performance in Spanish Banking Using a Direct Measure of Efficiency[J].Applied Financial Economics,Aug.1998:191.200.
