Hausman specification test 2sls vs 3sls in stata 18.0

[Jose Tavares]

Dear all
How to perfomer Hausman specification test 2sls vs 3sls in stata 18.0.
Someone can help with comand,
Best regards
José tavares

[Andrew Musau]

Duplicate post. If interested, see https://www.statalist.org/forums/for...=1723244756512.