Dear all,

I want to estimate a system of equations where the dependent variable is the same but the independent variables are different in each equation. It is a panel and I don't know how much the variables are correlated to include all in the same equation. The first model I thought is SURE but with the same dependent, it is not appropriate. It is still in the research proposal level so I don't have the data yet to further investigate. Is there another model to use in this case?

Thank you.