6Acharya, Viral V., Hasan,I.,and Saunders,A., 2002. The Effects of Focus and Diversification on Bank Risk and Return :Evidence from Indi- vidual Bank Loan Portfolios[ R ]. Working Paper, No.3252.
7Ansoff, H.I., 1957. Strategies for Diversification[ M ]. Harvard: Harvard Business Review.
8Baele, L.,Olivier de Jonghe, and Rudi Vander Vennet, 2007. Does the Stock Market Value Bank Diversification [J]. Journal of Banking and Finance, 31 ( 7 ) : 1999-2023.
9Calmes, Christian and Liu,Ying,2009. Financial Structure Change and Banking Income:A Canada-U.S. comparison[J ]. Journal of International Financial Markets, Institutions and Money, 19( 1 ) : 128-139.
10Calmes, Christian and Theoret, Raymond, 2010. The Impact of Off-balance-sheet Activities on Banks Returns: An Application of the ARCH- M to Canadian Data[J]. Journal of Banking and Finance,34(7): 1719-1728.