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"A number of variables are correlated with subsequent returns on the aggregate US stock market in the 20th Century. Some of these variables are stock market valuation ratios, others reflect patterns in corporate finance or the levels of short- and long-term interest rates. Amit Goyal and Ivo Welch (2004) have argued that in-sample correlations conceal a systematic failure of these variables out of sample: None are able to beat a simple forecast based on the historical average stock return. In this note we show that forecasting variables with significant forecasting power in-sample generally have a better out-of-sample performance than a forecast based on the historical average return, once sensible restrictions are imposed on thesigns of coefficients and return forecasts. The out-of-sample predictive power is small, but we find that it is economically meaningful. We also show that a variable is quite likely to have poor out-of-sample performance for an extended period of time even when the variable genuinely predicts returns with a stable coefficient"--National Bureau of Economic Research web site.
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Predicting the equity premium out of sample: can anything beat the historical average?
2005, National Bureau of Economic Research
Electronic resource
in English
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Book Details
Edition Notes
Includes bibliographical references.
Title from PDF file as viewed on 7/6/2005.
Also available in print.
System requirements: Adobe Acrobat Reader.
Mode of access: World Wide Web.
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