【作者(必填)】Dehejia, R.H. and Wahba, S.

【文题(必填)】Propensity Score-Matching Methods for Nonexperimental Causal Studies
【年份(必填)】The Review of Economics and Statistics 2002,84(1):151-161

【全文链接或数据库名称(选填)】http://www.mitpressjournals.org/ ... 331982#.VD5At26ZGog