Best subset binary prediction

Le-Yu Chen and Sokbae (Simon) Lee

No 50/17, CeMMAP working papers from Institute for Fiscal Studies

Abstract: We consider a variable selection problem for the prediction of binary outcomes. We study the best subset selection procedure by which the explanatory variables are chosen by maximizing Manski (1975, 1985)'s maximum score type objective function subject to a constraint on the maximal number of selected variables. We show that this procedure can be equivalently reformulated as solving a mixed integer optimization (MIO) problem, which enables computation of the exact or an approximate solution with a definite approximation error bound. In terms of theoretical results, we obtain non-asymptotic upper and lower risk bounds when the dimension of potential covariates is possibly much larger than the sample size. Our upper and lower risk bounds are minimax rate-optimal when the maximal number of selected variables is fixed and does not increase with the sample size. We illustrate usefulness of the best subset binary prediction approach via Monte Carlo simulations and an empirical application of the work-trip transportation mode choice.

Date: 2017-11-22
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Related works:
Journal Article: Best subset binary prediction (2018)
Working Paper: Best Subset Binary Prediction (2018)
Working Paper: Best subset binary prediction (2017)
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Persistent link: https://EconPapers.repec.org/RePEc:azt:cemmap:50/17

DOI: 10.1920/wp.cem.2017.5017

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