Tuesday, March 07, 2006
Re: st: helped with fixed effects logit
> I have a paper where I am examining the impact of democracy on crisis > behavior. I need to estimate a fixed effects or conditional logit model > but I am not sure how. > > The data is set up dyadically, meaning each observation has data on the > crisis and data for state A in the crisis and state B in the crisis > > Here is the functional form of the logistic regression I have run > > logit DV democstateA democstateB control1 control2 control3 control4 > > I need to estimate a fixed effects model to control for the impact of > specific countries. I know that I need to use conditional logit to > control for unmeasured heterogeneity. > > But I am not sure how to do it. Specifically, in the clogit setup, it > should look like: > > clogit DV democstateA democstateB control1 control2 control3 control4, > group(????). > > What I am unclear about is what goes in the parentheses. If anyone could > assist, I would very much appreciate it. I apologize for asking such a > basic question.
Stepping aside from -clogit-, are your events rare or not? If they are, then you may want to consider Gary King and Langche Zeng's -relogit- which you can download by going to
net from http://gking.harvard.edu/files/relogit.zip
Hope that helps.
CLIVE NICHOLAS |t: 0(044)7903 397793 Politics |e: email@example.com Newcastle University |http://www.ncl.ac.uk/geps
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