Hi everyone, I am dealing with two separe household surveys of consecutive years, and trying to analyze a policy change in the middle of those two years. I am trying a DiD model with covariates, and I was wondering how I could use a DiD model with previous matching to account for plausible differences among treatment and control groups. I am aware of the "diff" command in Stata, but DiD + matching with it needs panel id's, which of course I don't have. Any suggestion? Thanks in advance!!!
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