Dear all,
When using stata command "poisson", which model specification is what stata actually does, y = exp(xb + error) or y = exp(xb) + error ?
When using "xtpoisson, fe", which specification is stata actually does,
y = exp(xb + individual + error) or y = exp(xb) + individual + error or y = exp(xb + individual) + error ?
When using "xtgee y x,fam(poisson) link(log) corr(ar1)", is the error term in the exponential or outside?
thank you very much
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