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st: smearing factor - same for the sample or group-specific


From   Shehzad Ali <sia500@york.ac.uk>
To   statalist@hsphsun2.harvard.edu
Subject   st: smearing factor - same for the sample or group-specific
Date   02 Jun 2008 17:18:59 +0100

Hi listers,

Sorry this is probably a non-stata question but any advice would be appreciated.

Further to my query about predicting yhat after semi-logarithmic regression, I was wondering how should one decide whether to use the same smearing factor to predict yhat for the whole sample or different smearing factors for different sub-samples of insured and uninsured groups. I read somewhere that in RAND study they used different smearing factors for each sub-sample of insurance groups.

Any advice on this would be appreciated.

Cheers,

Shehzad
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