Cited by 48Statistical Methods and InferenceAdvanced Causal Inference TechniquesSpatial and Panel Data Analysis

Simple Adaptive Size-Exact Testing for Full-Vector and Subvector Inference in Moment Inequality Models

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Cox, Gregory, Shi, Xiaoxia·2023·The Review of Economic Studies

Abstract

We propose a simple test for moment inequalities that has exact size in normal models with known variance and has uniformly asymptotically exact size under asymptotic normality. The test compares the quasi-likelihood ratio statistic to a chi-squared critical value, where the degree of freedom is the rank of the inequalities that are active in finite samples. The test requires no simulation and thus is computationally fast and especially suitable for constructing confidence sets for parameters by test inversion. It uses no tuning parameter for moment selection and yet still adapts to the slackness of the moment inequalities. Furthermore, we show how the test can be easily adapted to inference on subvectors in the common empirical setting of conditional moment inequalities with nuisance parameters entering linearly. User-friendly Matlab code to implement the test is provided.

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  • We can test both testable implications using estimators DID^n,bal_l',l' of δ^n,bal_l,l', through a joint equality test for the first testable implication, and a multivariate inequality test for the second one.

    “We can test both testable implications using estimators DID n,bal ℓ ′ ,ℓ ′ of δ n,bal ℓ,ℓ ′ , through a joint equality test for the first testable implication, and a multivariate inequality test for the second one (see, e.g., Cox and Shi, 2023, for a recent and simple proposal).”

    From Difference-in-Differences Estimators of Intertemporal Treatment Effects (2026) · cites this paper as Cox and Shi, 2023

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  1. Huynh, T., Lassez, C., and Lassez, J.-L. (1992). Pratical issues on the projection of polyhedral sets. Annals of Mathematics and Artificial Intelligence , 6:295-316.
  2. Katz, M. (2007). Supermarkets and zoning laws. Ph.D. dissertation, Harvard University.
  3. Molinari, F. (2020). Econometrics with partial identification. In S. Durlauf, L. Hansen, J. Heckman, and R. Matzkin (Eds) Handbook of Econometrics : Volume 7A, 1st Edition. North Holland.
  4. Rockafellar, R. (1970). Convex Analysis . Princeton University Press.
  5. Ziegler, G. (1995). Lectures on Polytopes, Graduate Texts in mathematics, vol. 152 . Springer, Berlin.

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Authors
Cox, G., & Shi, X.
Affiliations
  • National University of Singapore (SG)
  • University of Wisconsin–Madison (US)
Corresponding author
Cox, Gregory
Venue
The Review of Economic Studies
Published
2022-03-15
Volume
90
Issue
1
Pages
201-228
ISSN
  • 0034-6527 (ISSN-L)
  • 1467-937X
OpenAlex
W3065003916
Cited by
48
References
78
Citations by year
2026: 5 · 2025: 7 · 2024: 8 · 2023: 9 · 2022: 9 · 2021: 5 · 2020: 2 · 2019: 2 · 2018: 1
FWCI
6.13
Type
journal article
Language
en
Open access
Locations
  • The Review of Economic Studies (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • arXiv (Cornell University)
Topics
  • Physical Sciences › Mathematics › Statistics and Probability › Statistical Methods and Inference
  • Physical Sciences › Mathematics › Statistics and Probability › Advanced Causal Inference Techniques
  • Social Sciences › Economics, Econometrics and Finance › Economics and Econometrics › Spatial and Panel Data Analysis
Keywords
quasi-likelihood ratio test, confidence regions, nuisance parameters, asymptotic normality, moment selection, finite-sample inference

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