The Adiustment of Stock Prices to New Information TORIo Eugene F. Fama; Lawrence Fisher; Michael C Jensen; Richard roll International Economic Review, Vol 10, No. 1.(Feb, 1969), pp 1-21 Stable url: http://links.jstor.org/sici?sici=0020-6598%28196902%2910%03a1%03c1903ataospt%3e2.0.c0%03b2-p International Economic Review is currently published by Economics Department of the University of Pe sylvania Your use of the JStOR archive indicates your acceptance of JSTOR's Terms and Conditions of Use, available at tp://www.jstor.org/about/terms.htmlJstOr'sTermsandConditionsofUseprovidesinpartthatunlessyou 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/ier_pub.html Each copy of any part of a jSTOR transmission must contain the same copyright notice that appears on the screen or rinted page of such transmission. jSTOR is an independent not-for-profit organization dedicated to creating and preserving a digital archive of scholarly journals. For more information regarding JSTOR, please contact support @jstor.org http://wwwjstor.org Fri Apr1405:32:162006