no code implementations • 28 Oct 2023 • Tymon Słoczyński, S. Derya Uysal, Jeffrey M. Wooldridge
We show that when the propensity score is estimated using a suitable covariate balancing procedure, the commonly used inverse probability weighting (IPW) estimator, augmented inverse probability weighting (AIPW) with linear conditional mean, and inverse probability weighted regression adjustment (IPWRA) with linear conditional mean are all numerically the same for estimating the average treatment effect (ATE) or the average treatment effect on the treated (ATT).
no code implementations • 29 Aug 2023 • Kaicheng Chen, Robert S. Martin, Jeffrey M. Wooldridge
We reassess the use of linear models to approximate response probabilities of binary outcomes, focusing on average partial effects (APE).
no code implementations • 25 Nov 2022 • Ruonan Xu, Jeffrey M. Wooldridge
When observing spatial data, what standard errors should we report?
no code implementations • 2 Aug 2022 • Tymon Słoczyński, S. Derya Uysal, Jeffrey M. Wooldridge
We also propose a DR version of the Hausman test that can be used to assess the unconfoundedness assumption through a comparison of different estimates of the average treatment effect on the treated (ATT) under one-sided noncompliance.
no code implementations • 15 Apr 2022 • Tymon Słoczyński, S. Derya Uysal, Jeffrey M. Wooldridge
Several other estimators, which are unnormalized, do not satisfy the properties of scale invariance with respect to the natural logarithm and translation invariance, thereby exhibiting sensitivity to the units of measurement when estimating the LATE in logs and the centering of the outcome variable more generally.
no code implementations • 2 Dec 2021 • Nicholas L. Brown, Peter Schmidt, Jeffrey M. Wooldridge
We study estimation of factor models in a fixed-T panel data setting and significantly relax the common correlated effects (CCE) assumptions pioneered by Pesaran (2006) and used in dozens of papers since.
no code implementations • 6 Jun 2017 • Alberto Abadie, Susan Athey, Guido W. Imbens, Jeffrey M. Wooldridge
We derive standard errors that account for design-based uncertainty instead of, or in addition to, sampling-based uncertainty.
Statistics Theory Econometrics Statistics Theory