Counting Defiers

Publication Abstract

PDF Kowalski, Amanda. 2019. "Counting Defiers." PSC Research Report No. 19-893. 3 2019.

The LATE monotonicity assumption of Imbens and Angrist (1994) precludes "defiers," individuals whose treatment always runs counter to the instrument, in the terminology of Balke and Pearl (1993) and Angrist et al. (1996). I allow for defiers in a model with a binary instrument and a binary treatment. The model is explicit about the randomization process that gives rise to the instrument. I use the model to develop estimators of the counts of defiers, always takers, compliers, and never takers. I propose separate versions of the estimators for contexts in which the parameter of the randomization process is unspecified, which I intend for use with natural experiments with virtual random assignment. I present an empirical application that revisits Angrist and Evans (1998), which examines the impact of virtual random assignment of the sex of the first two children on subsequent fertility. I find that subsequent fertility is much more responsive to the sex mix of the first two children when defiers are allowed.

Browse | Search | Next

PSC In The News

RSS Feed icon

Miller comments on local efforts to provide healthcare to vulnerable populations

Shaefer discusses Americans with tight financial resources have fewer options as they navigate coronavirus closures and layoffs in NYT

Mehta's research on life expectancy crisis in the USA: The opioid crisis is not the decisive factor

More News

Highlights

Data Scientist Job Open at PSC/PDHP

New Investigator Mentoring Program (PDHP) Applications Sought

More Highlights


Connect with PSC follow PSC on Twitter Like PSC on Facebook