Nber Working Paper Series Matching on the Estimated Propensity Score
نویسندگان
چکیده
We are grateful to Ben Hansen, James Robins, Paul Rosenbaum, Donald Rubin, and participants in seminars at the Banff Center, Brown, Georgetown, Harvard/MIT, Montreal, and UPenn for comments and discussions. Software implementing these methods is available on our websites. The views expressed herein are those of the author(s) and do not necessarily reflect the views of the National Bureau of Economic Research.
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