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RE: st: Marginal Effects LogNormal Two-Part Model


From   Nick Cox <[email protected]>
To   "'[email protected]'" <[email protected]>
Subject   RE: st: Marginal Effects LogNormal Two-Part Model
Date   Mon, 21 Mar 2011 14:21:11 +0000

This is the third time in as many days that this has been posted. 

The answer appears to be Sorry, but no; and also do please pay attention to protocol on repeated posts at

http://www.stata.com/support/faqs/res/statalist.html#noanswer

-- which you were asked to read when you joined Statalist. 

Nick 
[email protected] 

Clifton Chow

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.

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