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Main Authors: Rose, Evan K., Shem-Tov, Yotam
Format: Preprint
Published: 2021
Subjects:
Online Access:https://arxiv.org/abs/2111.12258
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author Rose, Evan K.
Shem-Tov, Yotam
author_facet Rose, Evan K.
Shem-Tov, Yotam
contents Researchers using instrumental variables to investigate ordered treatments often recode treatment into an indicator for any exposure. We investigate this estimand under the assumption that the instruments shift compliers from no treatment to some but not from some treatment to more. We show that when there are extensive margin compliers only (EMCO) this estimand captures a weighted average of treatment effects that can be partially unbundled into each complier group's potential outcome means. We also establish an equivalence between EMCO and a two-factor selection model and apply our results to study treatment heterogeneity in the Oregon Health Insurance Experiment.
format Preprint
id arxiv_https___arxiv_org_abs_2111_12258
institution arXiv
publishDate 2021
record_format arxiv
spellingShingle On Recoding Ordered Treatments as Binary Indicators
Rose, Evan K.
Shem-Tov, Yotam
Econometrics
Methodology
Researchers using instrumental variables to investigate ordered treatments often recode treatment into an indicator for any exposure. We investigate this estimand under the assumption that the instruments shift compliers from no treatment to some but not from some treatment to more. We show that when there are extensive margin compliers only (EMCO) this estimand captures a weighted average of treatment effects that can be partially unbundled into each complier group's potential outcome means. We also establish an equivalence between EMCO and a two-factor selection model and apply our results to study treatment heterogeneity in the Oregon Health Insurance Experiment.
title On Recoding Ordered Treatments as Binary Indicators
topic Econometrics
Methodology
url https://arxiv.org/abs/2111.12258