Gravity models, PPML estimation and the bias of the robust standard errors
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DOI: 10.1080/13504851.2019.1581902
Abstract: ABSTRACT In gravity models with exporter and importer dummies, the robust standard errors of the slope parameters tend to be severely downward biased when estimated by PPML. The coverage rate of confidence intervals of the… read more here.
Keywords: ppml estimation; gravity models; standard errors; models ppml ... See more keywords