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                    活動講座 AG旗舰厅登录 - 活動講座 - 正文
                    數據科學與計量經濟學系列講座第一期
                    時間:2020-07-02    點擊數:

                    講座題目:Specification Tests for Generalized Propensity Scores Using Double Projections

                    報告人:宋曉軍,北京大學AG旗舰厅登录,助理教授

                    報告時間:2020年07月09日下午14點

                    報告地點:騰訊會議673 970 210

                    主持人:李愚昊


                    內容摘要:This paper proposes a new class of nonparametric tests for the correct specification of generalized propensity score models. The test procedure is based on two different projection arguments, which lead to test statistics with several appealing properties. They accommodate high-dimensional covariates; are asymptotically invariant to the estimation method used to estimate the nuisance parameters and do not requite estimators to be root-n asymptotically linear; are fully data-driven and do not require tuning parameters, can be written in closed-form, facilitating the implementation of an easy-to-use multiplier bootstrap procedure. We show that our proposed tests are able to detect a broad class of local alternatives converging to the null at the parametric rate. Monte Carlo simulation studies indicate that our double projected tests have much higher power than other tests available in the literature, highlighting their practical appeal.


                    主講人簡介 :Dr.Xiaojun Song is an Assistant Professor in Guanghua School of Management, Peking University. He has published several papers in top-field econometric journals, such as Journal of Econometrics, Journal of Business & Economic Statistics, Oxford Bulletin of Economics and Statistics, among others.



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