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st: Percentage points vs log points


From   Derya Karaci <dkaraci@yahoo.com>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   st: Percentage points vs log points
Date   Tue, 14 Feb 2012 13:33:24 -0800 (PST)

Hello, 

I am looking at the changes in gender wage gaps. My question is about interpretation of coefficients. I am computing  [log(male wage)-log(female wage)], and a running a difference-in-difference regression. Suppose the coefficient on the [treat*after] interaction is -0.03. How can I interpret it? In general, what is the difference between log points and percentage points? Is there conversion method? 

I am sorry for the trivial question, but any help will be greatly appreciated! 

Thanks! 

Derya

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