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Professor! Thank you very much ! if you have time, i hope to you upload about how run gravity model(ppml) in R!
Noted with thanks
Can you explain how to use the ppml estimator in R??
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Professor! Thank you very much ! if you have time, i hope to you upload about how run gravity model(ppml) in R!
Noted with thanks
Can you explain how to use the ppml estimator in R??