Hello everybody,
I am etimating gravity model of trade in my thesis, I have data on 210 countries over 19 year and I am using panel data, I would like to estimate it with ppml estimator but I do not know how to include ppml and panel data together.
More precisely, I would like to know
Tereza
I am etimating gravity model of trade in my thesis, I have data on 210 countries over 19 year and I am using panel data, I would like to estimate it with ppml estimator but I do not know how to include ppml and panel data together.
More precisely, I would like to know
- how to the fixed and random effects for ppml
- how to apply hausman test on it
Tereza
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