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Alexandre Poirier

Provost's Distinguished Associate Professor · Georgetown University

Provost's Distinguished Associate Professor in the Department of Economics at Georgetown University. He co-authored the omitted-variable sign paper with Matthew Masten and the Stata module regsensitivity.

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Published American Economic Review Published Jul 2026

The Effect of Omitted Variables on the Sign of Regression Coefficients

Matthew A. Masten · Alexandre Poirier

Masten and Poirier demonstrate a previously unrecognized asymmetry in the coefficient stability literature: depending on how omitted variable bias is measured, it can be substantially easier for …

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