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Cross-Validating Synthetic Controls

Martin Becker, Stefan Klößner and Gregor Pfeifer

MPRA Paper from University Library of Munich, Germany

Abstract: While the literature on synthetic control methods mostly abstracts from out-of-sample measures, Abadie et al. (2015) have recently introduced a cross-validation approach. This technique, however, is not well-defined since it hinges on predictor weights which are not uniquely defined. We fix this issue, proposing a new, well-defined cross-validation technique, which we apply to the original Abadie et al. (2015) data. Additionally, we discuss how this new technique can be used for comparing different specifications based on out-of-sample measures, avoiding the danger of cherry-picking.

Keywords: Synthetic Control Methods; Cross-Validation; Specification Search. (search for similar items in EconPapers)
JEL-codes: C22 C52 (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-ecm
Date: 2017-08-17
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Journal Article: Cross-Validating Synthetic Controls (2018) Downloads
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