Dear all,

I have a dataset of pooled cross sectional data for individuals across a number of different countries, regions and years. I am using a difference in difference design to compare the effect of foreign aid on citizens' attitudes by comparing both posttreatment citizens (aid active) and pretreatment individuals (aid inactive) with control individuals (non-aid area). In order to ensure that I am comparing citizens who are similar except for their aid status I want to run models which include region and year fixed effects.

In terms of the command required in stata for this my understanding is that because my data is not panel data I would not need to use "xtset" or "xtreg" to run such a model. Would it be acceptable to simply run a regression with dummy variables assigned for region and year ? Would the following be correct in such a case:

Code:
xi:reg depvar1 depvar2 control1 control2 i.year i.region