hello everyone,
i'm currenlty doing a research for my masters' thesis, and i'm doing a panel study of 28 OECD countries over the span of 28 years.
I have run a pooled OLS model,
and i have also run Fixed effects model and random effects model, and after running the Hausman test, i rejected the null hypothesis meaning that the fixed effects model is more appropriate.
my question now is how i go from here? how do i choose between Pooled OLS model and Fixed effects model, is there a test that i can run ?
thank you in advance and best regards,



this is my Pooled OLS model.

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Fixed Effects model:

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Random Effects model:

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