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st: RE: stset with multiple spells


From   "Schaffer, Mark E" <M.E.Schaffer@hw.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: stset with multiple spells
Date   Mon, 24 Apr 2006 17:13:18 +0100

Juan Manuel, 

> -----Original Message-----
> From: owner-statalist@hsphsun2.harvard.edu 
> [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of 
> Juan Manuel Jauregui
> Sent: 24 April 2006 03:32
> To: statalist@hsphsun2.harvard.edu
> Subject: st: stset with multiple spells
> 
> My fellow Stata lovers,
> 
> I'm trying to stset my dataset, and I'm having trouble. I 
> already read the [st] manual, the great book by Cleves et al 
> (2004) and also his excelent review of this issue at the FAQ 
> (reproducing the STB-49) and even a search of the Statalist 
> history and other websites wasn't fruitful.
> 
> Here is my problem:
> 
> I have an unbalanced panel of almost 200 individuals 
> (countries in this case) with 100 records each (25 years of 
> quarterly data) and I want to study the duration of some 
> periods of financial distress. I have an event that marks the 
> begining of each crisis, and another event that marks its 
> end. This crises periods appear more than once for each 
> country and they are separated from each other by periods of 
> tranquility, that is, analysis time should begin from 0 when 
> a new crisis begins.

I rarely work with duration data, so this is possibly a silly question,
but -help stset- has a heading near the top that reads

"Multiple-record-per-subject survival data"

and later in the help file, explains how to handle it.

How is this different from what you want to do?

Cheers,
Mark

> The closest thing I think I can do is to take each episode as 
> an individual and take countries as groups and use a shared 
> frialty model, but that wouldn't be exactly what I want to 
> do. I'd prefer to take it as repeated episodes of the same individual.
> 
> Any help will be greatly appreciated.
> 
> Thanks a lot!
> 
> Juan Manuel Jauregui
> Doctoral Student
> Global Economics and Management
> UCLA Anderson School of Management
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