I'm doing a propensity score matching estimation. The code is as follows,
psmatch2 highMacroSubFirm OperatingLeverage Markup PriceResearch OperatingLeverage, outcome(Value) noreplacement logit ate
psgraph
pstest OperatingLeverage Markup PriceResearch OperatingLeverage
My problem is whatever matching factors I try, there are at least more than half of the observations are off support (19000/31000). Please help me with this, thank you!