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Journal of Political Economy Vol. 125 No. 4 2017

Beyond LATE with a Discrete Instrument

Christian Brinch1; Magne Mogstad2; Matthew Wiswall3,4,5

1 BI Norwegian Business School · 2 Statistics Norway · 3 National Bureau of Economic Research · 4 University of Wisconsin–Madison · 5 Arizona State University

Abstract

We show how a discrete instrument can be used to identify the marginal treatment effects under a functional structure that allows for treatment heterogeneity among individuals with the same observed characteristics and self-selection based on the unobserved gain from treatment. Guided by this identification result, we perform a marginal treatment effect analysis of the interaction between the quantity and quality of children. Our estimates reveal that the family size effects vary in magnitude and even sign and that families act as if they possess some knowledge of the idiosyncratic effects in the fertility decision.

DOI
10.1086/692712
Volume
125
Issue
4
Pages
985-1039
Language
en
Sources
bibtex:phds-export.bib openalex crossref

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