Re: st: Tobit regression where left vs right censoring cannot be determined in the preferred dependent variable

[Richard Williams <Richard.A.Williams.5@ND.edu>]

At 09:59 AM 4/17/2006, volpe@rhodes.edu wrote:
> I am attempting to perform a regression on a data set whose 
> dependent variable is censored.   The problem I'm running into, 
> though, is that the variable itself is left censored at 100, but I 
> want to look at the percentage of the population that is y as my 
> dependent variable in the regression.
>
> IE
>
> Say that I've got the number of persons living in poverty.  As a raw 
> number, this is left censored at 100.  Ideally, I want to look at 
> the percentage of the population that is living in poverty.  So not 
> only do I fail to have a constant censoring value but, for a given 
> city with fewer than 100 persons living in poverty, I am not certain 
> if that city is left censored or right censored....
>
> Do you have any idea how to handle this? Would it be all too 
> terrible to enter poverty = 100 when poverty (raw) <100, and simply 
> use OLS methods to analyze it?
Look at -intreg- and see if it appears to meet your needs.


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Richard Williams, Notre Dame Dept of Sociology
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