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DTSTART;TZID=Europe/Helsinki:20240930T140000
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SUMMARY:Guillaume POULIOT (University of Chicago) - "Placebo Tests Done Right "
DESCRIPTION:Econometrics Seminar\nTime: 14:00 pm – 15:30 pm\nDate: 30th of September\nRoom : 1003 \n  \nGuillaume POULIOT (University of Chicago) – “Placebo Tests Done Right” \n  \nAbstract : \n“In order to assess the significance of a regressor\, applied regression analysts sometimes rerun their regression replacing the regressor of interest with a randomly perturbed –often permuted– version which is expected to be insignificant\, i.e.\, a placebo. While these procedures are often heuristic in their justification\, p-values are often reported. We argue that the common interpretation of such placebo tests – for observational data– as Fisher test –designed for experimental data– is misleading\, and that many such placebo tests and p-values are in fact invalid. In particular\, we argue that almost all such tests for multivariate linear regression are invalid. A unified treatment of randomization inference and Fisher tests suggests more robust interpretations and designs of such placebo procedures\, and allows to handle the multivariate linear regression case” \n  \n  \nOrganizers: \nXavier D’HAULTFOEUILLE (Pôle économie du CREST) \n  \nSponsors:\nCREST \n
URL:https://crest.science/event/guillaume-pouliot-university-of-chicago-placebo-tests-done-right/
CATEGORIES:Applied Seminar,Economics,Seminars
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