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Testing-Based Forward Model Selection

Damian Kozbur

American Economic Review, 2017, vol. 107, issue 5, 266-69

Abstract: This paper defines and studies a variable selection procedure called Testing-Based Forward Model Selection. The procedure inductively selects covariates which increase predictive accuracy into a working statistical regression model until a stopping criterion is met. The stopping criteria and selection criteria are defined using statistical hypothesis tests. The paper explicitly describes a testing procedure in the context of high-dimensional linear regression with heteroskedastic disturbances. Finally, a simulation study examines finite sample performance of the proposed procedure and shows that it behaves favorably in high-dimensional sparse settings in terms of prediction error and size of selected model.

JEL-codes: C52 (search for similar items in EconPapers)
Date: 2017
Note: DOI: 10.1257/aer.p20171039
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