Valuation Ratios and the Long-run Stock Market Outlook: An Update
John Campbell () and
No 1295, Cowles Foundation Discussion Papers from Cowles Foundation for Research in Economics, Yale University
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.
Keywords: Stock market; price-earnings ratio; forecasts; expectations; dividend-price ratio; efficient markets; Standard & Poor's 500; present value; productivity (search for similar items in EconPapers)
JEL-codes: G12 (search for similar items in EconPapers)
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Published in Richard H. Thaler, Advances in Behavioral Finance II, Princeton: Princeton University Press, 2005
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