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Difference-in-differences when the treatment status is observed in only one p...
This paper considers the difference-in-differences (DID) method when the data come from repeated cross-sections and the treatment status is observed either before or after the... -
Selection in a field experiment with voluntary participation (replication data)
The external validity of experiments in economics can be ensured only if participants reflect the relevant market population. We study data from a promotional campaign of...
