st: het and omitted variables tests for Tobit

["Alessio D'Ignazio" <est1900@hotmail.com>]

Dear All,

I am estimating a Tobit model.

I got the stata code to perform the Pagan and Vella Normality test. Are you 
aware of any code to perform Heteroskedasticity and Omitted variables tests?

Thanks a lot,

Best Regards,

Alessio D'Ignazio

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