9Imai K S , Gaiha R. Microfinance and poverty-a macro per- spective[J]. World Development, 2012,40(8) : 1675- 1689.
10Bo Y, li J L, Wei P , Hua X et al. Microfinanee in china's poor area and its impact to loan type -evidence from xinjiang uygur autonomous region[C]. Fourth International Conference on Busi- ness Intelligence and Financial Engineering, 2011 : 486 - 490.