4Berger A,Klapper L,Udell G.The ability of banks to lend to informationally opaque small businesses[J].Journal of Banking & Finance,2001,25(12):2127-2167.
5Berger,Allen N,G F Udell.Small Business Credit Availability and Relationship Lending:The Importance of Bank Organizational Structure[J].The Economic Journal,2002,(112):32-53.
6Cole,Rebel A,Lawrence G Goldberg,Lawrence J White.Cookie-Cutter versus Character:The Micro Structure of Small Business Lending by Large and Small Banks[J].Journal of Financial and Quantitative Analysis,2004,6(39):227-51.
7Robert Deyoung,William C Hunter,Gregory F Udell.The Past,Present,and Probably Future for Community Banks[P].Working Paper Federal Reserve Bank of Chicago,2003,(14).