I am writing my master dissertation on impact of Microfinance in economic growth and poverty reductio. I have 5 cross-countries trekking 20 years. This makes my data a panel data, however if I run this I won’t be able to make comparisons among the countries. To do that, can I run panel data regression together with the panel diagnostic tests and then run time series regression analysis just for the comparison? I won’t be doing the diagnostic checks again. I don’t know if this makes sense. I need help.