Hi all,
I have a panel data an use gravity model for it, my data has zero trade flow, so I use PPML regression to estimate. Is this suitable with my data, or I must to use other methods?
Thank you for your help!
I have a panel data an use gravity model for it, my data has zero trade flow, so I use PPML regression to estimate. Is this suitable with my data, or I must to use other methods?
Thank you for your help!
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