TY  - JOUR
AU  - Campbell,John Y.
AU  - Shiller,Robert J.
TI  - Valuation Ratios and the Long-Run Stock Market Outlook: An Update
JF  - National Bureau of Economic Research Working Paper Series
VL  - No. 8221
PY  - 2001
Y2  - April 2001
UR  - http://www.nber.org/papers/w8221
L1  - http://www.nber.org/papers/w8221.pdf
N1  - Author contact info:
John Y. Campbell
Morton L. and Carole S.
Olshan Professor of Economics
Department of Economics
Harvard University
Littauer Center 213
Cambridge, MA 02138
Tel: 617/496-6448
Fax: 617/495-7730
E-Mail: john_campbell@harvard.edu

Robert J. Shiller
Yale University, Cowles Foundation
Box 208281
30 Hillhouse Avenue
New Haven, CT  06520-8281
Tel: 203/432-3708
Fax: 203/432-6167
E-Mail: robert.shiller@yale.edu
AB  - The use of price earnings ratios and dividend-price ratios as forecasting variables for the stock market is examined using aggregate annual US data 1871 to 2000 and aggregate quarterly data for twelve countries since 1970. Various simple efficient-markets models of financial markets imply that these ratios should be useful in forecasting future dividend growth, future earnings growth, or future productivity growth. We conclude that, overall, the ratios do poorly in forecasting any of these. Rather, the ratios appear to be useful primarily in forecasting future stock price changes, contrary to the simple efficient-markets models. This paper is an update of our earlier paper (1998), to take account of the remarkable behavior of the stock market in the closing years of the twentieth century.
ER  -