Hi!
Few days ago, there was an online webinar in my country in which the lecturers stated that many of our finance-related researches were not done properly mainly because we normally don't have a good understanding of econometrics and statistical analysis softwares' capabilities and limitations. For instance, one of the lecturers told that Stata has some limitations when it comes to testing and verifying OLS assumptions for panel data. I couldn't have the chance to ask him to provide more information. Would you do me a real favor and tell me if he was accurate regarding this issue? What should be done to verify OLS assumptions for panel data?
Best regards!