On Causal Inference with Model-Based Outcomes

Fuente: arXiv
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Autores principales: Arkhangelsky, Dmitry, Yanagimoto, Kazuharu, Zohar, Tom
Formato: Preprint
Publicado: 2024
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author Arkhangelsky, Dmitry
Yanagimoto, Kazuharu
Zohar, Tom
author_facet Arkhangelsky, Dmitry
Yanagimoto, Kazuharu
Zohar, Tom
contents We study the estimation of causal effects on group-level parameters identified from microdata (e.g., child penalties). We demonstrate that standard one-step methods (such as pooled OLS and IV regressions) are generally inconsistent due to an endogenous weighting bias, where the policy affects the implicit weights (e.g., altering fertility rates). In contrast, we advocate for a two-step Minimum Distance (MD) framework that explicitly separates parameter identification from policy evaluation. This approach eliminates the endogenous weighting bias and requires explicitly confronting sample selection when groups are small, thereby improving transparency. We show that the MD estimator performs well when parameters can be estimated for most groups, and propose a robust alternative that uses auxiliary information in settings with limited data. To illustrate the importance of this methodological choice, we evaluate the effect of the 2005 Dutch childcare reform on child penalties and find that the conventional one-step approach yields estimates that are substantially larger than those from the two-step method.
format Preprint
id arxiv_https___arxiv_org_abs_2403_19563
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle On Causal Inference with Model-Based Outcomes
Arkhangelsky, Dmitry
Yanagimoto, Kazuharu
Zohar, Tom
General Economics
Economics
We study the estimation of causal effects on group-level parameters identified from microdata (e.g., child penalties). We demonstrate that standard one-step methods (such as pooled OLS and IV regressions) are generally inconsistent due to an endogenous weighting bias, where the policy affects the implicit weights (e.g., altering fertility rates). In contrast, we advocate for a two-step Minimum Distance (MD) framework that explicitly separates parameter identification from policy evaluation. This approach eliminates the endogenous weighting bias and requires explicitly confronting sample selection when groups are small, thereby improving transparency. We show that the MD estimator performs well when parameters can be estimated for most groups, and propose a robust alternative that uses auxiliary information in settings with limited data. To illustrate the importance of this methodological choice, we evaluate the effect of the 2005 Dutch childcare reform on child penalties and find that the conventional one-step approach yields estimates that are substantially larger than those from the two-step method.
title On Causal Inference with Model-Based Outcomes
topic General Economics
Economics
url https://arxiv.org/abs/2403.19563