Robust instrumental variables robivreg STATA

Robust instrumental-variables regression estimator Use robivreg With STATA 19
https://ln.run/robivreg

Robust instrumental variables riv R Software

obust instrumental variables estimator Use riv With (In) R Software
https://dik.si/riv_r

Post parallel regression Use oparallel In STATA

Post-estimation command for testing the parallel regression assumption Use oparallel With STATA 19
https://ln.run/oparallel

Principal Components DID Use pcdid With R

Principal Components Difference-in-Differences Use pcdid With (In) R Software
https://dik.si/pcdid

Brant test parallel regression brant STATA

Perform Brant test of parallel regression assumption after ologit Use brant With STATA 19
https://ristek.link/brant