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From |
"Murali Kuchibhotla" <muralik@iastate.edu> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
st: postestimation after asclogit |

Date |
Mon, 27 Oct 2008 15:54:06 -0500 (CDT) |

Hello, I have a few questions regarding the use of certain post-estimation commands after asclogit. I am estimating a model for training choice, with 3 alternatives for training and where individuals are allowed to choose more than one training category(off-the-job, on-th-job or none). My questions are- (1) I am interested in obtaining marginal effects, where the change in probabilities associated with any given variable are conditioned on the actual no. of alternatives chosen. Specifying the following does not seem to work though, as I get the following error message- estat mfx, at(mean) k(observed) option k() incorrectly specified How can I get over this problem? (2)I am also interested in testing the hypothesis that the coefficient estimates are the same across the different training categories. For example, with years of education entering as a case specific independent variable, I want to test the following hypothesis: education coefficient[alternative 1]=education coefficient[alternative 2] How do I accomplish this? Also, is there a way to test the above hypotheses jointly for all the case specific independent variables together? Suggestions would be greatly appreciated. Many thanks. Murali Kuchibhotla * * 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/

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