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A statistical software package. Use this tag for any on-topic question that (a) involves Stata either as a critical part of the question or expected answer, & (b) is not just about how to use Stata.

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Bivariate probit versus 2SLS, contradictory results (sign)

But my problem is when I turn to a bivariate probit, using the following stata code: biprobit (y=x1 x2 i.year i.region) (x1= z x2 i.year i.region), cluster(region) margins, dydx(x) predict(pmarg1) force …
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