Hello,
I am planning a survey where I have 50ish treated municipalities and
hundreds to choose from as potential controls. The tricky part of this
matching exercise is that the survey will, in the end, only sample 25 of
the 50 treated municipalities. I don't particularly care which 25 of the 50
are chosen; what I am effectively looking for is the top 25
treatment-control pairs from my sample.
Is it possible to do this in MatchIt with a distance measure
like mahalanobis? The MatchIt package is understandably conservative about
discarding treatment observations, and when I use it to match I generally
end up with around 50 matched treated units. How might I go about this?
Thank you.
--
Best,
Juan Fernando Tellez
PhD Candidate
Department of Political Science
Duke University
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