[經濟學系學術報告]Time to Demystify Endogeneity Bias
發文時間:2015-09-14

經濟學系學術報告

數量經濟學研討會

[201505]


報告題目:Time to Demystify Endogeneity Bias

報告人:秦朵 教授
報告時間:2015年9月18日下午12:30-13:30
報告地點:明德主樓728
內容簡介:This study exposes the flaw in defining endogeneity bias by correlation between an explanatory variable and the error term of a regression model. Through dissecting the links which have led to entanglement of measurement errors, simultaneity bias, omitted variable bias and self-selection bias, the flaw is revealed to stem from a Utopian mismatch of reality with single explanatory variable models. The consequent estimation-centred route to circumvent the correlation is shown to be committing a type III error. Use of single variable based ‘consistent’ estimators without consistency of model with data can result in significant distortion of causal postulates of substantive interest. This strategic error is traced to a loss in translation of those causal postulates to appropriate conditional models as decompositions of joint distributions. Historical lessons from the loss highlight the importance of utilising data information in adequate empirical model designs for causal inference.


報告人簡介:秦朵, 倫敦大學亞非學院教授。她的主要研究方向為新興市場的宏觀、計量經濟學發展、實證金融學以及國際經濟學等, 已經在國內外領先經濟學雜志上發表多篇文章。
數量經濟教研室 運籌學與數量經濟研究所 中國人民大學經濟學院 2015年09月

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