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  • Marginal effects after random-effects probit model

    Hello,

    I estimated a random-effects probit model and now I would like to get the marginal effects. My dependent variable is a dichotomous variable (temporary agency work = zeitarbeit_dummy).
    I used the command:
    Code:
    xtprobit zeitarbeit_dummy geschlecht_dummy alter alter2 verheiratet_dummy migrationshintergrund_dummy schuljahre monate_gesamt arbeitslosvorjahr_dummy if syear >2000 & alter >17 & alter <66 & sozialvertaetigkeit !=2 & frist ==1 & altersteilzeit ==2  & minimidijob != 1 & eineurojob !=1 & berufausbildung !=1 & vollzteilz <3 & arbeitslos!=1 & neu != 10 & neu != 11 & neu != 12 & neu != 13 & neu != 15 & neu != 110 & neu != 120 & neu != 130 & neu != 140 & neu != 150 & neu != 310 & neu != 320 &  neu != 330 & neu != 340 & neu != 410 & neu != 411 & neu != 412 & neu != 413 & neu != 420 & neu != 421 & neu != 422 & neu != 423 & neu != 430 & neu != 431 & neu != 432 & neu != 433 & neu != 440 & neu != 610 & neu != 620 & neu != 630 & neu != 640 & versichertenstatus <3, re
    And then I used
    Code:
    mfx
    however I do not get the marginal effects (the values do not change).


    Code:
    * Example generated by -dataex-. To install: ssc install dataex
    clear
    input float(zeitarbeit_dummy vollzteilz_dummy taetigkeitberuf_dummy unangelernt gelerntfacharbeiter vorarbeiter industriewerk qualifiziert hochqualifiziert fuehrungsaufgaben)
    0 1 0 0 0 0 0 0 1 0
    0 1 1 0 0 0 0 0 0 0
    0 1 1 0 0 0 0 0 0 0
    0 1 1 0 0 0 0 0 0 0
    0 1 1 0 0 0 0 0 0 0
    0 1 1 0 0 0 0 0 0 0
    0 0 1 0 0 0 0 0 0 0
    0 1 1 0 0 0 0 0 0 0
    0 1 1 0 0 0 0 0 0 0
    0 1 1 0 0 0 0 0 0 0
    0 1 1 0 0 0 0 0 0 0
    0 1 1 0 0 0 0 0 0 0
    0 1 1 0 0 0 0 0 0 0
    0 0 0 0 0 0 0 0 0 0
    0 1 1 0 0 0 0 0 1 0
    0 1 1 0 0 0 0 0 1 0
    0 1 1 0 0 0 0 0 1 0
    0 1 0 0 0 0 0 0 0 0
    0 1 1 0 1 0 0 0 0 0
    0 1 1 0 1 0 0 0 0 0
    0 1 1 0 1 0 0 0 0 0
    0 1 0 0 0 0 0 0 0 0
    0 1 0 0 0 0 0 0 0 0
    0 1 0 0 0 0 0 0 0 0
    0 1 0 0 0 0 0 1 0 0
    0 1 0 0 0 0 0 0 0 0
    0 1 1 0 0 0 0 0 0 0
    0 1 1 0 0 0 0 0 0 0
    0 1 1 0 0 0 0 0 0 0
    0 0 1 0 0 0 0 0 0 0
    0 1 0 0 0 0 0 1 0 0
    0 1 0 0 0 0 0 0 0 0
    0 1 0 0 0 0 0 1 0 0
    0 1 0 0 0 0 0 0 0 0
    0 1 1 0 0 0 0 1 0 0
    0 1 1 0 0 0 0 1 0 0
    0 1 1 0 0 0 0 1 0 0
    0 1 1 0 0 0 0 1 0 0
    0 1 1 0 0 0 0 1 0 0
    1 1 1 0 0 0 0 1 0 0
    0 1 1 0 0 0 0 1 0 0
    0 1 1 0 0 0 0 1 0 0
    0 1 1 0 0 0 0 1 0 0
    0 1 1 0 0 0 0 1 0 0
    0 1 1 0 0 0 0 1 0 0
    0 1 1 0 0 0 0 1 0 0
    0 1 0 0 0 0 0 1 0 0
    0 0 0 0 0 0 0 1 0 0
    0 0 0 0 0 0 0 1 0 0
    0 0 0 0 0 0 0 1 0 0
    0 0 0 0 0 0 0 1 0 0
    0 1 0 0 0 0 0 1 0 0
    0 1 0 0 0 0 0 1 0 0
    0 1 0 0 0 0 0 1 0 0
    0 1 0 0 0 0 0 1 0 0
    0 1 0 0 0 0 0 1 0 0
    0 1 0 0 0 0 0 1 0 0
    0 1 0 0 0 0 0 1 0 0
    0 1 0 0 0 0 0 1 0 0
    0 1 0 0 0 0 0 1 0 0
    0 1 1 0 0 0 0 0 1 0
    0 1 1 0 0 0 0 0 1 0
    0 1 1 0 0 0 0 0 1 0
    0 1 1 0 0 0 0 0 1 0
    0 1 1 0 0 0 0 0 1 0
    0 1 1 0 0 0 0 0 1 0
    0 1 1 0 0 0 0 0 1 0
    0 0 0 0 0 0 0 1 0 0
    0 1 1 0 0 0 0 0 0 0
    0 0 1 0 0 0 0 1 0 0
    0 0 1 0 0 0 0 1 0 0
    0 0 1 0 0 0 0 1 0 0
    0 1 1 0 1 0 0 0 0 0
    0 1 1 0 1 0 0 0 0 0
    0 1 1 0 1 0 0 0 0 0
    0 0 1 0 0 0 0 1 0 0
    0 1 1 0 0 0 0 0 0 0
    0 1 1 0 0 0 0 0 0 0
    0 1 1 0 0 0 0 0 0 0
    0 0 1 0 0 0 0 0 0 0
    0 0 1 0 0 0 0 0 0 0
    0 0 1 0 0 0 0 1 0 0
    0 0 1 0 0 0 0 1 0 0
    0 0 1 0 0 0 0 1 0 0
    0 1 1 0 0 0 0 1 0 0
    0 0 1 0 1 0 0 0 0 0
    0 1 1 0 1 0 0 0 0 0
    0 1 1 0 1 0 0 0 0 0
    0 1 1 0 1 0 0 0 0 0
    0 1 1 0 1 0 0 0 0 0
    0 1 1 0 1 0 0 0 0 0
    0 1 1 0 1 0 0 0 0 0
    0 1 1 0 1 0 0 0 0 0
    0 1 1 0 1 0 0 0 0 0
    0 1 1 0 1 0 0 0 0 0
    0 1 1 0 1 0 0 0 0 0
    0 0 1 0 0 0 0 1 0 0
    0 1 1 0 0 0 0 1 0 0
    0 1 1 0 0 0 0 1 0 0
    0 1 1 0 0 0 0 1 0 0
    end
    Does somebody know, which command I can use instead of "mfx" to get the marginal effects?

    Thank you very much.

    Kind regards,
    Tina

  • #2
    I believe you will need the - margins - command. Add to it, the option predict() accordingly.

    To end, about mfx, and assuming you are using Stata 15, please read this text: https://www.stata.com/help.cgi?mfx
    Last edited by Marcos Almeida; 29 Oct 2017, 06:06.
    Best regards,

    Marcos

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