On the inconsistency of matching without replacement
The paper shows that matching without replacement on propensity scores produces estimators that generally are inconsistent for the average treatment effect of the treated. To achieve consistency, practitioners must either assume that no units exist with propensity scores greater than 1/2 or assume t...
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| Format: | Article |
| Language: | English |
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Oxford University Press
2022
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| Online Access: | View Fulltext in Publisher |