项目名称: 有序约束下动态处理效应的统计方法研究
项目编号: No.11301245
项目类型: 青年科学基金项目
立项/批准年度: 2014
项目学科: 数理科学和化学
项目作者: 付连艳
作者单位: 辽宁大学
项目金额: 22万元
中文摘要: 在经济和其他社会科学中的许多实证问题都要依靠处理效应研究得到解决,迄今为止该领域的大多数研究仍集中在静态机制中。动态机制下处理效应研究,特别是有序约束下动态处理效应研究还有待于进一步深入。序约束问题在处理效应的实证研究中存在很广泛,但这方面的理论研究明显滞后于实际应用。实际应用中,存在序约束时,忽略序约束会造成分析得到的结果与真实效应有很大偏差甚至完全背离真实值。本项目先将序约束引入到潜在结果框架的静态处理效应中,讨论其可识别性和估计问题;再将其扩展到动态机制中,提出有序约束下动态处理效应的可识别性和估计问题的研究方法。与此同时,获得真实的效应估计,通过与忽略序约束获得的估计进行比较,明确序约束研究的必要性和重要性。通过本项目的成功实施,会促进序约束方法向处理效应领域的拓展,深化动态处理效应的理论研究,推动有序约束下动态处理效应在经济、教育、医疗等学科上的应用发展。
中文关键词: 政策干预;处理效应;动态分析;因果效应;协方差矩阵
英文摘要: Many empirical questions in economics and other social sciences depend on treatment effects. So far, most of the studies still focused on static regime. The treatment effects in dynamic regime, espicially the dynamic treatment effects with order restrictions needs further. In the empirical study of treatment effect there exist a lot of proplems referring to order restrictions. However, the theoretical research has lagged far behind in the practical applications. In fact, estimating treatment effect with negligence of order restrictions can lead to great bias or even a complete departure from the true value. The project will first introduce order restrictions method to the potential outcomes framework of static treatment effect, to discuss its identification and estimation;and then extend it to dynamic regime, to propose the methods for identifying and estimating the dynamic treatment effects with order restrictions. Meanwhile, the true effect will be obtained, which is compared to the estimated effect ignoring the order restrictions, to clear the necessity and importance of the study. The successful implementation of the project will expand the order restrictions method to the field of treatment effect, deepen the theoretical study of dynamic treatment effects, and promote dynamic treatment effects with order r
英文关键词: Policy Intervention;treatment effect;dynamic analysis;casual effect;covariance matrices