Mean Reversion in Stock Prices: Evidence and Implications

@article{Poterba1987MeanRI,
  title={Mean Reversion in Stock Prices: Evidence and Implications},
  author={James M. Poterba and Lawrence H.l Summers},
  journal={NBER Working Paper Series},
  year={1987}
}
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2,371 Citations
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2,371 Citations

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References

SHOWING 1-10 OF 53 REFERENCES

Stock Returns and the Term Structure

Dividend variability and variance bounds tests for the rationality of stock market prices

Perhaps for as long as there has been a stock market, economists have debated whether or not stock prices rationally reflect the "intrinsic" or fundamental values of the underlying companies. At one…

Does the Stock Market Rationally Reflect Fundamental Values

This paper examines the power of statistical tests commonly used to evaluate the efficiency of speculative markets. It shows that these tests have very low power. Market valuations can differ…

Stock Market Prices Do Not Follow Random Walks: Evidence from a Simple Specification Test

In this paper, we test the random walk hypothesis for weekly stock market returns by comparing variance estimators derived from data sampled at different frequencies. The random walk model is…

Permanent and Temporary Components of Stock Prices

A slowly mean-reverting component of stock prices tends to induce negative autocorrelation in returns. The autocorrelation is weak for the daily and weekly holding periods common in market efficiency…

What moves stock prices?

This paper estimates the fraction of the variance in aggregate stock returns that can be attributed to various kinds of news. First, we consider macroeconomic news and show that it is difficult to…

Bond and Stock Returns in a Simple Exchange Model

In this paper I analyze a simple "representative agent" exchange model of general equilibrium, and derive closed form solutions for returns on stocks and real and nominal bonds. The model restricts…

Does the Stock Market Overreact

Research in experimental psychology suggests that, in violation of Bayes' rule, most people tend to "overreact" to unexpected and dramatic news events. This study of market efficiency investigates…

Investing for the Short and the Long Term

If asset returns have different dynamics, then their short and long run risk characteristics differ. For instance, if returns on one asset follow a random walk, it is very risky to hold for the long…

On Estimating the Expected Return on the Market: An Exploratory Investigation

...