Jan 23, 2012
Q&A
Q&A: Small Stocks for the Long Run 
In addressing a previous question ("Has the Equity Premium Puzzle Gone Away?"), you suggested that it requires 35 years or more to be reasonably confident of achieving a positive equity premium. Is the time frame similar for the size and value premiums?

EFF/KRF: The volatility of month-by-month size and value premiums is similar to that of the equity premium, and it takes similarly long periods of time to be reasonably confident of achieving positive premiums. One is more confident the longer the period, but no matter how long the period, positive premiums are never a sure thing.

 
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ABOUT FAMA AND FRENCH
Eugene F. Fama
The Robert R. McCormick Distinguished Service Professor of Finance at the University of Chicago Booth School of Business
Kenneth R. French
The Roth Family Distinguished Professor of Finance at the Tuck School of Business at Dartmouth College
This information is distributed for educational purposes and should not be considered investment advice or an offer of any security for sale. This article contains the opinions of the author but not necessarily Dimensional Fund Advisors and does not represent a recommendation of any particular security, strategy or investment product. Dimensional Fund Advisors is an investment advisor registered with the Securities and Exchange Commission. Information contained herein has been obtained from sources believed to be reliable, but is not guaranteed. Past performance is not indicative of future results and no representation is made that the stated results will be replicated.

Eugene Fama and Ken French are members of the Board of Directors of the general partner of, and provide consulting services to Dimensional Fund Advisors LP.