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Cited by 180Advanced Causal Inference TechniquesSpatial and Panel Data AnalysisStatistical Methods and Bayesian Inference

The DOI matches its Crossref record; 36 of the 37 references it cites were found in a registry or an index.

Inference in Differences-in-Differences with Few Treated Groups and Heteroskedasticity

Ferman, Bruno, Pinto, Cristine·2019·The Review of Economics and Statistics
DOI 10.1162/rest_a_00759
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Abstract

We derive an inference method that works in differences-in-differences settings with few treated and many control groups in the presence of heteroskedasticity. As a leading example, we provide theoretical justification and empirical evidence that heteroskedasticity generated by variation in group sizes can invalidate existing inference methods, even in data sets with a large number of observations per group. In contrast, our inference method remains valid in this case. Our test can also be combined with feasible generalized least squares, providing a safeguard against misspecification of the serial correlation.

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Research works printed but not linked: 3

  1. Behrens Walter, 1929, Landwirtschaftliche Jahrbucher, 68, 807
  2. Bell R. M., 2002, Survey Methodology, 28, 169
  3. Fisher Ronald A., 1935, The Design of Experiments

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Metadata

Authors
Ferman, B., & Pinto, C.
Affiliations
Escola de Economia de São Paulo (BR)
ORCID
Venue
The Review of Economics and Statistics
Publisher
MIT Press
Published
2019-07
Volume
101
Issue
3
Pages
452-467
ISSN
  • 0034-6535 (ISSN-L)
  • 1530-9142
DOI
10.1162/rest_a_00759
OpenAlex
W2113132502
Cited by
178
References
37
Citations by year
2026: 41 · 2025: 19 · 2024: 20 · 2023: 14 · 2022: 21 · 2021: 24 · 2020: 18 · 2019: 12
FWCI
11.83
Type
journal article
Language
en
Open access
closed
Locations
  • The Review of Economics and Statistics (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
Topics
  • Physical Sciences › Mathematics › Statistics and Probability › Advanced Causal Inference Techniques
  • Social Sciences › Economics, Econometrics and Finance › Economics and Econometrics › Spatial and Panel Data Analysis
  • Physical Sciences › Mathematics › Statistics and Probability › Statistical Methods and Bayesian Inference
Keywords
difference-in-differences, heteroscedasticity, inference, serial correlation, feasible generalized least squares, model misspecification, causal inference

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