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st: st: Marginal Effects LogNormal Two-Part Model


From   "Clifton Chow" <[email protected]>
To   [email protected]
Subject   st: st: Marginal Effects LogNormal Two-Part Model
Date   Mon, 21 Mar 2011 09:15:38 -0500

Dear List,  

I am wondering if someone could point me to the code or user defined program in STATA for calculating marginal effects (especially unconditional ME) for a Two Part Probit/LogNormal model (alternative to Tobit).  My program is below:
  
 First Part (Probit)  P(HoursWork | $xlist)
  
     probit binarywork age female white educ faminc healthstat
    
  Second Part (Log Normal)  E(LNHours | $xlist, hourswork >0)
    
    regress LNHours age female white educ faminc healthstat if binarywork==1
    
  I have gone through the statalist archives and didn't come across any for logNormal two-part models.  Any help is greatly appreciated.
    
    Many Thanks
  
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