Hi,

I have two probit regressions:

P(diabetes=1)=Φ(α+β1minethi+ β2agei+β3sexi+β4inci+β5alci+β6cigsi+β7edui+ℇi)

P(diabetes=1)=Φ(α+1minethi+ 2agei+3sexi+4inci+5alci+6cigsi+7edui+ℇi)

which have exactly the same form but are done on different samples (one is UK and the other is US).

Please could you help me on what the code is to test the equality of β1 and ∂1?

Thank you!