[quote=OneMoreEcon]
***Levitt won an NSF, but I think he won it during his first year at MIT. (NSF Fellow '92-'94, and was awarded his PhD in '94. I'm pretty sure he finished his PhD in 3 years, but that means he entered in Fall '91, and won NSF the following spring... the point here being that an NSF Fellowship didn't help him get into MIT, since he was already there).
quote]
He graduated from Harvard at 1989, he spent 5 years on PhD?
http://pricetheory.uchicago.edu/levitt/LevittCV.html