2Sherman H. D., Gold F.. Bank Branch Operating Efficiency; Evaluation with Data Envelopment Analysis[J]. Journal of Banking and Finance, 1985, 9(2): 297-315.
3Fkuyama H., Weber W, L.. Japanese Banking Inefficiency and Shadow Pricing[J]. Mathematical and Computer Modeling, 2008, 48 (11-12): 185-1567.
4Chambers R. G., Chung Y., Fare R.. Benefit and Distance Functions[J]. Journal of Economic Theory, 1996, 70(2): 407-419.
5Chung Y. H., Fare R., Grosskopf S.. Productivity and Undesirable Outputs: A Directional Distance Function Approach [J]. J Environ Manage, 1997, 51(3): 229-240.
6Berger A. N., Humphrey D. B.. Efficiency of Financial Institutions; International Survey and Directions for Future Research[J]. Journal of Operational Research, 1997, 98 (2): 175-212.
7Peiser R, Wang B. Non-performing loan resolution in China [J]. Journal of Real Estate, Portfolio Management, 2002, 8(4): 115-127.
9Yohannes Y, Webb P. Classification and regression trees, CART?: A user manual for identifying indi- cators of vulnerability to famine and chronic food in security [EB]. http://www.ifpri.org/sites/default/ files/publications/micro3.pdf, 1999.
10Chen J, Yu K, Hsing A, and Therneau T. A partially linear tree-based regression model for assessing complex joint gene-gene and gene-environment effects [J]. Genetic Epidemiology, 2007, 31: 238-251.