Dear Statalisters:
I am trying to perform a ratio of marginal effects after an ordered probit command.
That is, after
. oprobit y x1 x2 x3
where y = 0,1,2
I asked for the marginal effects
. mfx compute, predict (outcome(1))
. mfx compute, predict (outcome(2))
which gave me, say, "dydx1" and "dydx2".
Now, what I need to know is "dydx2/dydx1" with its standard error.
I guess I need to use "nlcom" command, but I have no clue on how to write this last syntax statement, despite all my tries.
Does anyone have any clue on this matter?
Thanks.
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