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From |
Olivia Bacha <oliviabacha@gmail.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: Marginal Effects for Binary Response Models with Nonlinear Regressors |

Date |
Sun, 30 May 2010 10:51:40 -0300 |

Dear Maarten, Thanks for your interest. Ok, the question is really confusing, let me try to be more specific. Consider the following model 'logit y x(i)/sum_x(i)', where variable x(i) is expenditure for individual i, then sum_x(i) sum up total expenditures for all individuals, it is a ratio. As stata uses delta method, mfx command will give me x(i)/sum_x(i) + delta , not x(i)+delta/[sum_x(i)+delta]. It is a sort of same problem we face to calculate marginal effects by including interactions in logit model. Olivia 2010/5/30 Maarten buis <maartenbuis@yahoo.co.uk>: > --- On Sun, 30/5/10, Olivia Bacha wrote: >> Does anyone know how to estimate marginal effects after >> logit with a non linear regressor such as x(i)/[sum_x(i)+y] >> in Stata? > > You'll have to be more precise with what you mean with your > formula, what is x, what is y, what is the subscript i? It > sorta looks like a regular link function for a -mlogit-, in > which case I suppose you didn't do anything special, and you > can just use -mfx- or -margins-. > > -- Maarten > > -------------------------- > Maarten L. Buis > Institut fuer Soziologie > Universitaet Tuebingen > Wilhelmstrasse 36 > 72074 Tuebingen > Germany > > http://www.maartenbuis.nl > -------------------------- > > > > > * > * 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/ > * * 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/

**Follow-Ups**:**Re: st: Marginal Effects for Binary Response Models with Nonlinear Regressors***From:*Maarten buis <maartenbuis@yahoo.co.uk>

**References**:**st: Marginal Effects for Binary Response Models with Nonlinear Regressors***From:*Olivia Bacha <oliviabacha@gmail.com>

**Re: st: Marginal Effects for Binary Response Models with Nonlinear Regressors***From:*Maarten buis <maartenbuis@yahoo.co.uk>

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