Risk,Return,and Equilibrium:Empirical Tests STOR ® Eugene F.Fama;James D.MacBeth The Journal of Political Economy,Vol.81,No.3 (May -Jun.,1973),607-636. Stable URL: http://links.jstor.org/sici?sici=0022-3808%28197305%2F06%2981%3A3%3C607%3ARRAEET%3E2.0.CO%3B2-J The Journal of Political Economy is currently published by The University of Chicago Press. Your use of the JSTOR archive indicates your acceptance of JSTOR's Terms and Conditions of Use,available at http://www.jstor.org/about/terms.html.JSTOR's Terms and Conditions of Use provides,in part,that unless you have obtained prior permission,you may not download an entire issue of a journal or multiple copies of articles,and you may use content in the JSTOR archive only for your personal,non-commercial use. Please contact the publisher regarding any further use of this work.Publisher contact information may be obtained at http://www.jstor.org/journals/ucpress.html. Each copy of any part of a JSTOR transmission must contain the same copyright notice that appears on the screen or printed page of such transmission. For more information on JSTOR contact jstor-info@umich.edu. ©2003 JSTOR http://www.jstor.org/ Mon Nov1701:55:302003