University of Chicago Professors Eugene F. Fama and Lars Peter Hansen have been awarded the 2013 Nobel Memorial Prize in Economic Sciences, along with Robert J. Shiller of Yale. The three are recognized for their work on spotting trends in asset markets.
Regarding Eugene Fama's contributions to understanding Investments and Financial Economics, John Cochrane does a very good job explaining Fama's career contributions:
http://faculty.chicagobooth.edu/john...Fama_nobel.pdf
For anyone interested in a deeper understanding of investments, take a moment to look at :
http://www.lib.uchicago.edu/e/busecon/busfac/Fama.html for many seminal articles.