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The person who has the best handle on this information is John Siegfried at 
Vanderbilt.  He has, I believe, an article coming out in the JEP with some 
of that information.  You can contact him at:  
 
[log in to unmask] 
 
There was also an article in the JEP about foreign graduate students with 
some information.   
 
Dave Colander 
 
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