Dear Statalist members,
I am a new member of this forum, I have a question and I hope if I can have an answer.
I have a gravity dataset to evaluate the effectiveness of RTAs.

because I have the bilateral trade so there is reporters and partners situation, the model should be estimated by country pair fixed effects and country time fixed effects

Code:
 egen id=group(reportercode partnercode)
ppmlhdfe Trade LGDP  LDis RTA ,a(i.id##c.year)
I have checked the help file for ppmlhdfe command and I am still not sure if this code will run the regression with country pair fixed effects and country time fixed effects
Dear Prof Joao Santos Silva , I would appreciate if you can give me your feedback on this.

Regards,

Lama