B. Then, you estimated model 2 that accounts for a distinction between countries (See v370-DV3eg2), that is, include dummy variables for the countries in to the model. (i) generate dummy variables using command tabulate ..., gen(...) ; (ii) estimate regression with dummy variables. g) Are there omitted variables? (Run appropriate test(s): State Ho, test, inference) h) Is model specied correctly? (Run appropriate test(s): State Ho, test, inference) i) Is there multicollinearity problem? Why you don't need to run assessment in Stata and you can use results and conclusion made for pooled model in f)