Gravity Model

[Med Amine Margoum]

Hello Everyone

im a new user of stata
i would like to apply the gravity model to estimate the impact of logistics on export of morocco , i work on this subject for my memoire of master
I am doing the research on the volume of trade between Morocco and 30 partner countries using the average bilateral exports over (20014-2015-2016)

in general my model is like this: lnExporttion(Morocco and partner x) = LnD(Morocco and partner x) + lnGDP(Morocco) + lnGDPj(partner x) + lnPopulationMorocco + lnPopulation(partner) + Lnlogsitc inedx (Morocco) + LnLogisticindex(Parnetx) + Dummy Variables

i would realy appreciate some help with the method that i should adopte and the good method of estimation that i should apply
and what command shoud i use

Thank you in advance for all help

[Imtiaz Ahmad]

Please be more clear about your dataset, Are you using product level data or is it aggregate exports?