REVIEW 1 cited by
On the Properties of the Synthetic Control Estimator with Many Periods and Many Controls
Not yet reviewed by Pith; the record is open.
This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.
SPECIMEN: schema-true, not a live event
T0 review · schema-true
One-sentence machine reading of the paper's core claim.
pith:XXXXXXXX · record.json · timestamp
read the original abstract
We consider the asymptotic properties of the Synthetic Control (SC) estimator when both the number of pre-treatment periods and control units are large. If potential outcomes follow a linear factor model, we provide conditions under which the factor loadings of the SC unit converge in probability to the factor loadings of the treated unit. This happens when there are weights diluted among an increasing number of control units such that a weighted average of the factor loadings of the control units asymptotically reconstructs the factor loadings of the treated unit. In this case, the SC estimator is asymptotically unbiased even when treatment assignment is correlated with time-varying unobservables. This result can be valid even when the number of control units is larger than the number of pre-treatment periods.
Forward citations
Cited by 1 Pith paper
-
Correlated Synthetic Controls
Correlated Synthetic Controls, a weight-sharing synthetic control estimator for many treated units, is proposed and shown to have smaller estimation error than difference-in-differences under selection on unobservable...
Discussion (0). Sign in to comment.