Introduces a nonparametric distributional DiD test that transports control-group drift via optimal transport to build a counterfactual and uses an RKHS MMD statistic to test equality.
arXiv preprint arXiv:2006.09430 , year=
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A Test for Treatment Heterogeneity under a Distributional Difference-in-Difference Framework
Introduces a nonparametric distributional DiD test that transports control-group drift via optimal transport to build a counterfactual and uses an RKHS MMD statistic to test equality.