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From |
Richard Williams <Richard.A.Williams.5@ND.edu> |

To |
"statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>, "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu> |

Subject |
RE: st: Margeff with oprobit |

Date |
Mon, 10 Aug 2009 00:34:55 -0500 |

At 08:11 PM 8/9/2009, Nicolas Herault wrote:

I do have the same version as you.One of the reasons I am using margeff rather than mfx is that I wantaverage marginal effects rather than marginal effects at the mean.Below is a simple model, where jlpyrs is the number of years in ajobless household (ranging from 0 to 7).You will see that the marginal effects obtained with margeff (forgender) are much smaller than the ones computed 'manually'(variables t0 to 7 below).I did the same experiment with mlogit, probit and xtprobit and I didget for these models the same values for both marginal effects.That's why I am wondering whether there is a bug in margeff after oprobit.

oprobit y i.x margins, dydx(*) predict(outcome(1)) margins, dydx(*) predict(outcome(2)) margins, dydx(*) predict(outcome(3))

------------------------------------------- Richard Williams, Notre Dame Dept of Sociology OFFICE: (574)631-6668, (574)631-6463 HOME: (574)289-5227 EMAIL: Richard.A.Williams.5@ND.Edu WWW: http://www.nd.edu/~rwilliam * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/

**References**:**Re: st: Margeff with oprobit***From:*Richard Williams <Richard.A.Williams.5@ND.edu>

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