This paper uses the propensity score matching method to solve the endogenous problem effectively, basing on the panel data of listed companies from 2005 to 2012.
基于2005—2012年上市公司的面板数据，本文采用倾向评分匹配的方法，有效解决了样本“内生性”问题。
Objective Propose a method that combines the propensity score approach and non-parametric survival analysis for hazard ratio estimation in non-randomized medical researches.
目的提出一种适用于非随机化医学研究的，结合倾向指数与非参数生存分析估计风险比的方法。
The paper USES the propensity score-matching method to estimate the effects on training on rural labor's earnings based on micro data of Jilin Province in 2006.
基于2006年吉林省进城务工人员调查数据，采用倾向分匹配法对农民工的培训收入效应进行估算。
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