On The Risk of Stocks in the Long Run
Boston University - Department of Finance & Economics
Harvard Business School Working Paper No 95-013
This paper examines the proposition that investing in common stocks is less risky the longer an investor plans to hold them. If the proposition were true, then the cost of insuring against earning less than the risk-free rate of interest should decline as the length of the investment horizon increases. The paper shows that the opposite is true even if stock returns are "mean-reverting" in the long run. The case for young people investing more heavily in stocks than old people cannot, therefore, rest solely on the long-run properties of stock returns. For guarantors of money-fixed annuities, the proposition that stocks in their portfolio are a better hedge the longer the maturity of their obligations is unambiguously wrong.
Number of Pages in PDF File: 11
JEL Classification: G11
Date posted: June 8, 2001
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