2Stiroh,K.J..Do Community Banks Benefit from Dive rsification?[J]. Journal of Financial Services Research, 2004,25(2): 135-60.
3Mercieca, S., Schaeck, K., and Wolfe,S.. Small European Banks:Benefits From Diversification? [J]. Journal of Banking and Finance,2007,31 (7): 1975-1998.
4Lepetit, L., Nys, E.C., Rous, P., and Tarazi, A.,. The Expansion of Services in European Banking: Implications for Loan Pricing and Interest Margins [J]. Journal of Banking and Finance,2008,32(11): 2325-2335.