http://gking.harvard.edu/files/psparadox.pdf.
The authors argue that propensity score matching (PSM) often approximates random matching, both in real applications and in data simulated by the processes that fit PSM theory.
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http://gking.harvard.edu/files/psparadox.pdf.
The authors argue that propensity score matching (PSM) often approximates random matching, both in real applications and in data simulated by the processes that fit PSM theory.