Rejoinder to “Instrumented difference-in-differences” Research Letter


Authors: Ye, T.; Ertefaie, A.; Flory, J.; Hennessy, S.; Small, D. S.
Title: Rejoinder to “Instrumented difference-in-differences”
Abstract: We thank all the discussants for the careful reading and insightful comments. In our rejoinder, we extend the discussion of how the assumptions of instrumented difference-in-differences (iDID) compare to the assumptions of the standard instrumental variable method. We also make additional comments on how iDID is related to the fuzzy DID. We highlight future research directions to enhance the utility of iDID, including extensions to adjust for covariate shift in two-sample iDID design, and generalization of iDID to multiple time points and a multi-valued instrumental variable for DID. © 2022 The International Biometric Society.
Keywords: time points; biometrics; instrumental variables; covariate shifts; difference-in-differences; differences-in-differences; future research directions; generalisation; instrumental variable methods; multi-valued
Journal Title: Biometrics
Volume: 79
Issue: 2
ISSN: 0006-341X
Publisher: Wiley Blackwell  
Date Published: 2023-06-01
Start Page: 601
End Page: 603
Language: English
DOI: 10.1111/biom.13780
PROVIDER: scopus
PUBMED: 36314073
DOI/URL:
Notes: Article -- Source: Scopus
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  1. James H Flory
    69 Flory