Estimating Causal Effects of Discrete and Continuous Treatments with Binary Instruments

Fuente: arXiv
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Auteurs principaux: Chernozhukov, Victor, Fernández-Val, Iván, Han, Sukjin, Wüthrich, Kaspar
Format: Preprint
Publié: 2024
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author Chernozhukov, Victor
Fernández-Val, Iván
Han, Sukjin
Wüthrich, Kaspar
author_facet Chernozhukov, Victor
Fernández-Val, Iván
Han, Sukjin
Wüthrich, Kaspar
contents We propose an instrumental variable framework for identifying and estimating causal effects of discrete and continuous treatments with binary instruments. The basis of our approach is a local copula representation of the joint distribution of the potential outcomes and unobservables determining treatment assignment. This representation allows us to introduce an identifying assumption, so-called copula invariance, that restricts the local dependence of the copula with respect to the treatment propensity. We show that copula invariance identifies treatment effects for the entire population and other subpopulations such as the treated. The identification results are constructive and lead to practical estimation and inference procedures based on distribution regression. An application to estimating the effect of sleep on well-being uncovers interesting patterns of heterogeneity.
format Preprint
id arxiv_https___arxiv_org_abs_2403_05850
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Estimating Causal Effects of Discrete and Continuous Treatments with Binary Instruments
Chernozhukov, Victor
Fernández-Val, Iván
Han, Sukjin
Wüthrich, Kaspar
Econometrics
Methodology
We propose an instrumental variable framework for identifying and estimating causal effects of discrete and continuous treatments with binary instruments. The basis of our approach is a local copula representation of the joint distribution of the potential outcomes and unobservables determining treatment assignment. This representation allows us to introduce an identifying assumption, so-called copula invariance, that restricts the local dependence of the copula with respect to the treatment propensity. We show that copula invariance identifies treatment effects for the entire population and other subpopulations such as the treated. The identification results are constructive and lead to practical estimation and inference procedures based on distribution regression. An application to estimating the effect of sleep on well-being uncovers interesting patterns of heterogeneity.
title Estimating Causal Effects of Discrete and Continuous Treatments with Binary Instruments
topic Econometrics
Methodology
url https://arxiv.org/abs/2403.05850