2Stigltz J. E,A. Weiss. Credit Rationing in Markets with Imperfect Information[J].{H}American Economic Review,1981,(03):393-410.
3Strahan P. E,Weston J. P. Small Business Lending and Bank Consolidation：Is There Cause for Concern[J].Current Issue in Economics and Finance,1996,(03):4-9.
