- #1
beaf123
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I am using panel- data for 30 countries over 25 years to estimate a regression model. Expenditure on cars is my dependent variable and then I use economic theory to find some explanatory variables.
First, is 30 countries and 25 years an ok sample? Or should years > countries?
Second, is it an ok approach to start with Norway (my home country, and country of focus) and our neighboring countries and then expand the model to more countries that seem simmiliar to Scandinavian countries? Or should I start with including all my countries in the model?
Its so much litterature on econometrics and so many rules, so I don`t dare to do anything!
Thanks,
First, is 30 countries and 25 years an ok sample? Or should years > countries?
Second, is it an ok approach to start with Norway (my home country, and country of focus) and our neighboring countries and then expand the model to more countries that seem simmiliar to Scandinavian countries? Or should I start with including all my countries in the model?
Its so much litterature on econometrics and so many rules, so I don`t dare to do anything!
Thanks,