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insongkim / PanelMatch

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Is it possible to identify the units selected when refinining the matched sets? #73

Closed augustocerqua closed 3 years ago

augustocerqua commented 3 years ago

Dear Authors,

Many thanks for continuing to update this very useful command. I have a question about the identification of the control units selected by the matching estimator. Let's say I am using Mahalanobis matching with 3 neighbors. Is it possible to know which are the 3 neighbors matched with each treated unit? I think this might be useful for 2 reasons: i) to have an idea of the geographical distribution of weights (in case one is using area-level data); ii) to plot individual treatment effects versus a covariate to investigate the possible relationship (not necessarily causal) between ATT and a relevant variable (suggested by theoretical arguments).

Many thanks, Augusto Cerqua

insongkim commented 3 years ago

@augustocerqua Thanks for using the package. The matched set object should contain the information that you are looking for. I hope that the wiki page that we created can be a useful point to start: https://github.com/insongkim/PanelMatch/wiki/Matched-Set-Objects

Thanks.

augustocerqua commented 3 years ago

Many thanks In Song. I've managed to get the individual treatment effects