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Moment Inequalities in the Context of Simulated and Predicted Variables

Hiroaki Kaido, Jiaxuan Li, Marc Rysman

arXiv 10 Apr 2018 · Econometrics

arXiv:1804.03674 · PDF · DOI · OpenAlex · Extracted main text

Abstract

This paper explores the effects of simulated moments on the performance of inference methods based on moment inequalities. Commonly used confidence sets for parameters are level sets of criterion functions whose boundary points may depend on sample moments in an irregular manner. Due to this feature, simulation errors can affect the performance of inference in non-standard ways. In particular, a (first-order) bias due to the simulation errors may remain in the estimated boundary of the confidence set. We demonstrate, through Monte Carlo experiments, that simulation errors can significantly reduce the coverage probabilities of confidence sets in small samples. The size distortion is particularly severe when the number of inequality restrictions is large. These results highlight the danger of ignoring the sampling variations due to the simulation errors in moment inequality models. Similar issues arise when using predicted variables in moment inequalities models. We propose a method for properly correcting for these variations based on regularizing the intersection of moments in parameter space, and we show that our proposed method performs well theoretically and in practice.

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Most heavily cited references

The works this paper leans on most, across its whole bibliography — not restricted to papers in our corpus. Ranked by composite intensity, which combines how often a work is mentioned, how many sections mention it, and how much of that falls in the main text rather than the appendix.

ReferenceIntensityMentionsSectionsMain text
1Andrews, D. W. & Soares, G (2010) Inference for parameters defined by moment inequalities using generalized moment selection1.000113100%
2Chernozhukov, V., Lee, S., & Rosen, A (2013) Intersection bounds: Estimation and inference0.92843100%
3Chernozhukov, V., Hong, H., & Tamer, E (2007) Estimation and confidence regions for parameter sets in econometric models0.8746367%
4Ciliberto, F. & Tamer, E (2009) Market structure and multiple equilibria in airline markets0.87452100%
5Eizenberg, A (2013) Upstream innovation and product variety in the U.S. home PC market0.87452100%
6Gourieroux, C. & Montfort, A (1996) Simulation-Based Econometric Methods0.84333100%
7Beck, A. & Teboulle, M (2012) Smoothing and first order methods: A unified framework0.8229356%
8Andrews, D. W. & Guggenberger, P (2009) Validity of subsampling and “plug-in asymptotic” inference for parameters defined by moment inequalities0.7946350%
9Pakes, A. & Pollard, D (1989) Simulation and the asymptotics of optimization estimators0.7373367%
10Andrews, D. W. K. & Barwick, P. J (2012) Inference for parameters defined by moment inequalities: A recommended moment selection procedure0.73732100%

Showing the top 10 of 98 scored citations.