Filling the Gaps: A Multiple Imputation Approach to Estimating Aging Curves in Baseball

Fuente: arXiv
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Autori principali: Nguyen, Quang, Matthews, Gregory J.
Natura: Preprint
Pubblicazione: 2022
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author Nguyen, Quang
Matthews, Gregory J.
author_facet Nguyen, Quang
Matthews, Gregory J.
contents In sports, an aging curve depicts the relationship between average performance and age in athletes' careers. This paper investigates the aging curves for offensive players in Major League Baseball. We study this problem in a missing data context and account for different types of dropouts of baseball players during their careers. We employ a multiple imputation framework for multilevel data to impute the player performance associated with the missing seasons, and estimate the aging curves based on the imputed datasets. We then evaluate the effects of different dropout mechanisms on the aging curves through simulation, before applying our method to analyze MLB player data from past seasons. Results suggest an overestimation of the aging curves constructed without considering the unobserved seasons, whereas estimates obtained from multiple imputation address this shortcoming.
format Preprint
id arxiv_https___arxiv_org_abs_2210_02383
institution arXiv
publishDate 2022
record_format arxiv
spellingShingle Filling the Gaps: A Multiple Imputation Approach to Estimating Aging Curves in Baseball
Nguyen, Quang
Matthews, Gregory J.
Applications
In sports, an aging curve depicts the relationship between average performance and age in athletes' careers. This paper investigates the aging curves for offensive players in Major League Baseball. We study this problem in a missing data context and account for different types of dropouts of baseball players during their careers. We employ a multiple imputation framework for multilevel data to impute the player performance associated with the missing seasons, and estimate the aging curves based on the imputed datasets. We then evaluate the effects of different dropout mechanisms on the aging curves through simulation, before applying our method to analyze MLB player data from past seasons. Results suggest an overestimation of the aging curves constructed without considering the unobserved seasons, whereas estimates obtained from multiple imputation address this shortcoming.
title Filling the Gaps: A Multiple Imputation Approach to Estimating Aging Curves in Baseball
topic Applications
url https://arxiv.org/abs/2210.02383