Hi All!
Tomorrow at Applied
Stats<http://projects.iq.harvard.edu/applied_stats> we will be
hearing from Professor Adam Glynn (Harvard Government) who will speak on "Front-Door
Difference-in-Differences Estimators: The Effects of Early In-person Voting on
Turnout" (joint work with Konstantin Kashin). I've put the abstract below and
included links to two different papers which are related to this project.
As per usual, we will meet at 12noon in CGIS K354. Lunch will be served -- and it's
going to be a taco bar!
See you tomorrow!
Tess
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Tess Wise
PhD Candidate
Harvard Department of Government
http://tesswise.com
Front-Door Difference-in-Differences Estimators: The Effects of Early In-person Voting on
Turnout
Abstract
In this paper, we develop front-door difference-in-differences estimators that utilize
information from post-treatment variables in addition to information from pre-treatment
covariates. Even when the front-door criterion does not hold, these estimators allow the
identification of causal effects by utilizing assumptions that are analogous to standard
difference-in-differences assumptions. We also demonstrate that causal effects can be
bounded by front-door and front-door difference-in-differences estimators under relaxed
assumptions. We illustrate these points with an application to the effects of early
in-person voting on turnout. Despite recent claims that early voting had a negative effect
on turnout in 2008, we find evidence that early in-person voting had small positive
effects on turnout in Florida in 2008 and 2012.
http://scholar.harvard.edu/files/aglynn/files/fddid_0.pdf
http://scholar.harvard.edu/files/aglynn/files/glynnkashin-frontdoor.pdf
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Tess Wise
PhD Candidate
Harvard Department of Government
http://tesswise.com