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From |
Maarten Buis <maartenlbuis@gmail.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: mlogtest after mlogit |

Date |
Mon, 24 Oct 2011 14:50:56 +0200 |

On Mon, Oct 24, 2011 at 11:59 AM, Chiara Mussida wrote: > I run I mlogit with a dependent variables for 9 outcome > categories. <snip> my dependent variable, transition, is > built as follows: > ge transition=0 > replace transition=1 if UE==1 > replace transition=2 if UN==1 > replace transition=3 if UU==1 > replace transition=4 if EU==1 > replace transition=5 if EN==1 > replace transition=6 if EE==1 > replace transition=7 if NE==1 > replace transition=8 if NU==1 > replace transition=9 if NN==1 > > where each outcome is a transition or permanence in each labour market > state (namely, Unemployment, Employment, Non labour force) Sounds to me like you want to run a Markov model. The simplest version of which requires two variables: origin and destination. Origin is the previous state and destination is the current state: so both can take "values" U, E, or N (represented by appropriate numerical values, e.g. 1, 2, 3). After that you run three -mlogit- models (assuming you have one explanatory variable imaginatively called x): mlogit destination x if origin == 1 mlogit destination x if origin == 2 mlogit destination x if origin == 3 So you are modeling the probabilities of each destination state conditional on the three possible origin states. Things (as always) get more complicated when you want to control for unobserved heterogeneity. However, whether or not one really wants to control for unobserved heterogeneity, and if so, what the causal effect is one is really after, i.e. what (thought) experiment you would like to execute, is a remarkably subtle problem. See e.g.: Robert D. Mare (2011) "Introduction to symposium on unmeasured heterogeneity in school transition models" Research in Social Stratification and Mobility, 29(3): 239-245. <http://dx.doi.org/10.1016/j.rssm.2011.05.004> Hope this helps, 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/

**References**:**st: mlogtest after mlogit***From:*Chiara Mussida <cmussida@gmail.com>

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