Good day, all of you.

My name is Franco Vegas and I'm currently doing my thesis on the effect on average income of districs on wich bank Azteca entered in 2008 in Perú.
I wanted to know the easiest way of programing a generalized DDD with my depentant variable Average Household Income, my DD estimator (Azteca) and and a covariable of Rural or Poor.
I understand thay a DDD model is a little dirrerent from a generalized DDD and I wanted to know the difference (of differences hahaha).

Thanks un advance for your responses.