Doubly Robust Identification of Causal Effects of a Continuous Treatment using Discrete Instruments

Fuente: arXiv
Salvato in:
Dettagli Bibliografici
Autori principali: Dong, Yingying, Lee, Ying-Ying
Natura: Preprint
Pubblicazione: 2023
Soggetti:
Accesso online:
Tags: Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
_version_ 1866911784512782336
author Dong, Yingying
Lee, Ying-Ying
author_facet Dong, Yingying
Lee, Ying-Ying
contents Many empirical applications estimate causal effects of a continuous endogenous variable (treatment) using a binary instrument. Estimation is typically done through linear 2SLS. This approach requires a mean treatment change and causal interpretation requires the LATE-type monotonicity in the first stage. An alternative approach is to explore distributional changes in the treatment, where the first-stage restriction is treatment rank similarity. We propose causal estimands that are doubly robust in that they are valid under either of these two restrictions. We apply the doubly robust estimation to estimate the impacts of sleep on well-being. Our new estimates corroborate the usual 2SLS estimates.
format Preprint
id arxiv_https___arxiv_org_abs_2310_18504
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Doubly Robust Identification of Causal Effects of a Continuous Treatment using Discrete Instruments
Dong, Yingying
Lee, Ying-Ying
Econometrics
Many empirical applications estimate causal effects of a continuous endogenous variable (treatment) using a binary instrument. Estimation is typically done through linear 2SLS. This approach requires a mean treatment change and causal interpretation requires the LATE-type monotonicity in the first stage. An alternative approach is to explore distributional changes in the treatment, where the first-stage restriction is treatment rank similarity. We propose causal estimands that are doubly robust in that they are valid under either of these two restrictions. We apply the doubly robust estimation to estimate the impacts of sleep on well-being. Our new estimates corroborate the usual 2SLS estimates.
title Doubly Robust Identification of Causal Effects of a Continuous Treatment using Discrete Instruments
topic Econometrics
url https://arxiv.org/abs/2310.18504