Holmstrom B. The Provision of Services in a Market Economy［R］. Philadelphia: University of Pennsylvania， 1984.
[3]
Akerlof G A. The Market for “Lemons”: Quality Uncertainty and the Market Mechanism［J］. Quarterly Journal of Economics， 1970，84(3):488500.
[4]
Avery R B， Calem E A. Consumer Credit Scoring: Do Situational Circumstances Matter［J］. Journal of Banking & Finance， 2004，28(4):835856.
[5]
Freedman S， Jin G Z. Do Social Networks Solve Information Problems for Peer-to-Peer Lending? —Evidence from Prosper.com［R］. South Drive: Indiana University， 2008.
Dehejia R H， Wahba S. Propensity Score-matching Methods for Nonexperimental Causal Studies［J］. Review of Economics and Statistics， 2002，84(1):151161.
[8]
Becker S， Ichino A. Estimation of an Average Treatment Effects Based on Propensity Scores［J］. The Stata Journal， 2002，4(2):358377.
[9]
White H. A Heteroskedasticity-consistent Covariance Matrix Estimator and a Direct Test for Heteroskedasticity［J］. Econometrica， 1980，48(4):817838.(责任编辑:王薇)(上接第140页)
[10]
Beck T， Levine R， Loayza N. Finance and the Sources of Growth［J］. Journal of Financial Economics， 2000，58(1):261300.
[11]
Almeida H V， Wolfenzon D. A Theory of Pyramidal Ownership and Family Business Groups［J］. The Journal of Finance， 2006，61(6):26372680.
Abiad A， Oomes N， Ueda K. The Quality Effect: Does Financial Liberalization Improve the Allocation of Capital?［J］. Journal of Development Economics， 2008，87(2):270282.
