Complete subset averaging approach for high-dimensional generalized linear models

Xingyi Chen, Haiqi Li and Jing Zhang

Economics Letters, 2023, vol. 226, issue C

Abstract: This study proposes a novel complete subset averaging (CSA) method for high-dimensional generalized linear models based on a penalized Kullback–Leibler (KL) loss. All models under consideration can be potentially misspecified, and the dimension of covariates is allowed to diverge to infinity. The uniform convergence rate and asymptotic normality of the proposed estimator are established. Moreover, it is asymptotically optimal in terms of achieving the lowest KL loss. To ease the computational burden, we randomly draw a fixed number of subsets from the complete subsets and show their asymptotic equivalence. The Monte Carlo simulation and empirical application demonstrate that the proposed CSA method outperforms popular model-averaging methods.

Keywords: Asymptotic optimality; Complete subset averaging; Kullback–Leibler loss; Generalized linear models (search for similar items in EconPapers)
JEL-codes: C13 C35 (search for similar items in EconPapers)
Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:eee:ecolet:v:226:y:2023:i:c:s016517652300109x

DOI: 10.1016/j.econlet.2023.111084

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