Alexandre Poirier

Research

Published papers

• "Identification and Estimation of Partial Effects in Nonlinear Semiparametric Panel Models" (2024), with Laura Liu and Ji-Liang Shiu 

Forthcoming at Journal of Econometrics, (Supplemental appendix | arXiv draft (first draft: May 2021))

• "Assessing Sensitivity to Unconfoundedness: Estimation and Inference" (2024), with Matthew Masten and Linqi Zhang 

Journal of Business & Economic Statistics, 42 (1), pp.  1–13. (Preprint | arXiv draft | Companion Stata Module tesensitivity - GitHub link | Associated vignette)

• "Choosing Exogeneity Assumptions in Potential Outcome Models" (2023),  with Matthew Masten 

 Econometrics Journal, 26 (3), pp. 327–349. (Preprint | arXiv draft | supersedes "Interpreting quantile independence")

• "GMM quantile regression" (2022), with Sergio Firpo, Antonio Galvao, Cristine Pinto, and Graciela Sanroman

Journal of Econometrics, 230 (2), pp. 432–452. (2020 preprint | Supplemental appendix | SSRN drafts | Code and Data)

• "Salvaging Falsified Instrumental Variable Models" (2021), with Matthew Masten

Econometrica, 89 (3), pp. 1449–1469.  (Journal link | Supplemental appendix | arXiv draft (first draft: Dec. 2018) | Code and Data)

• "Inference on breakdown frontiers" (2020), with Matthew Masten

Quantitative Economics, 11 (1), pp. 41–111. (Supplemental appendix | Replication files | arXiv drafts)

• "Estimation of models with multiple-valued explanatory variables" (2019), with Nicolas L. Ziebarth

       Journal of Business & Economic Statistics, 37 (4), pp. 586–597. (2018 preprint | Supplemental appendix | Code and Data)

• "Quantile Regression Random Effects" (2019), with Antonio Galvao

 Annals of Economics and Statistics, 134, pp. 109–148. (2019 preprint)

• "A quantile correlated random coefficients panel data model" (2018), with Bryan Graham, Jinyong Hahn, and James Powell

Journal of Econometrics, 206 (2), pp. 303–335. (2016 preprint | Supplemental appendix | Data | Stata do file) 

• "Identification of treatment effects under conditional partial independence" (2018), with Matthew Masten

 Econometrica, 86 (1), pp. 317–351.  (Journal link | Erratum for Proposition 5)  

• "Efficient estimation of models with independence restrictions" (2017) 

Journal of Econometrics, 196 (1), pp. 1–22. (2016 preprint)

Working papers

• “The Effect of Omitted Variables on the Sign of Regression Coefficients", with Matthew Masten (June 2025 | First arXiv version: August 2022)

Revise and resubmit at American Economic Review

• "An Axiomatic Approach to Comparing Sensitivity Parameters," with Paul Diegert and Matthew Masten (June 2025 | First arXiv version: April 2025)

Note: This material first appeared in retired and superseded arXiv drafts from May 2023 and July 2023. Those drafts also contained additional results, which are now in "Assessing Omitted Variable Bias when the Controls are Endogenous" below.

• "Assessing Omitted Variable Bias when the Controls are Endogenous", with Paul Diegert and Matthew Masten (June 2025 | First arXiv version: June 2022)

- Companion Stata Module: regsensitivity (GitHub link | Associated vignette | install using the command ssc install regsensitivity)

- Note: Previous drafts contained material that is no longer in the current draft; it is now in "An Axiomatic Approach to Comparing Sensitivity Parameters."

• "Quantifying the Internal Validity of Weighted Estimands", with Tymon Słoczyński (March 2025 | First arXiv version: April 2024)

• "A General Approach to Relaxing Unconfoundedness", with Matthew Masten and Muyang Ren (January 2025)

Work in progress

• "Assessing Sensitivity to Identifying Assumptions", with Matthew Masten 

Revise and resubmit at Journal of Economic Literature

• "Assessing IV Exclusion and Exogeneity without First Stage Monotonicity", with Paul Diegert and Matthew Masten

Other papers

• "Partial independence in nonseparable models", with Matthew Masten (June 2016)

Note: this paper is inactive, and portions of it now appear as part of "Identification of treatment effects under conditional partial independence" (2018) and "Choosing Exogeneity Assumptions in Potential Outcome Models'' (2023).

• "How should the graduate economics core be changed?" (2011), with Jose Miguel Abito, Katarína Borovičková, Hays Golden, Jacob Goldin, Matthew Masten, Miguel Morin, Vincent Pons, Israel Romem, Tyler Williams, and Chamna Yoon

Journal of Economic Education, 42 (4), pp. 414–417.

Recent Teaching at Georgetown

• Econ 6012: Econometrics 1 (First-year Ph.D. Econometrics | Fall 2018–2025)

• Econ 6013: Econometrics 2 (First-year Ph.D. Econometrics | Spring 2024)

• Econ 4022: Causal Inference (Undergraduate topics class | Fall 2021, Spring 2024, Fall 2025)

• Econ 2120: Introduction to Econometrics (Undergraduate Econometrics | Spring 2019, Fall 2019)