I hope someone might be able to clear up what should be a
simple question, though I cannot find the simple answer.

Stata's mlogit command reports logit coefficients by default.
By using the RRR option, Stata will supposedly report relative
risk ratios instead. But Stata's method of generating these
"relative risk ratios" is simply to exponentiate the
coefficients. Stata says, "rrr reports the estimated
coefficients transformed to relative risk ratios, i.e., exp(b)
rather than b."

But exponentiating the coefficients is how one converts logit
coefficients to odds ratios. Since odds ratios and relative
risk ratios are not the same thing (though in some cases they
may be almost equal), Stata’s description of these
exponentiated coefficients as relative risk ratios makes no
sense to me. Shouldn’t Stata just call these numbers odds
ratios? And shouldn't I just call them odds ratios too?

Thanks for any guidance.

Bill

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