Hi!
I would like to know if threre is a Stata program (e.g. that works like the psmatch2 stata module) where you can get the difference-in-differences (se e.g. Heckman).
(Or is it necessary that I do the propensity score matching first, and then perform the diff-in-diffs? Or is there an existing full program where I can get the difference-in-differences automatically, just as I get the ATT in psmatch2.)
Grateful for help!
/Pelle
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