Carolina Fugazza () (CeRP-Collegio Carlo Alberto, Turin) Massimo Guidolin () (Manchester Business School) Giovanna Nicodano () (University of Turin and CeRP-Collegio Carlo Alberto, Turin)
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Welfare gains to long-horizon investors may derive from time diversification that exploits non-zero intertemporal return correlations associated with predictable returns. Real estate may thus become more desirable if its returns are negatively serially correlated. While it could be important for long horizon investors, time diversification has been mostly investigated in asset menus without real estate and focusing on in-sample experiments. This paper evaluates ex post, the out-of-sample gains from diversification when equity REITs belong to the investment opportunity set. We find that diversification into REITs increases both the Sharpe ratio and the certainty equivalent of wealth for all investment horizons and for both classical and Bayesian (who account for parameter uncertainty) investors. The increases in Sharpe ratios are often statistically significant. However the out-of-sample average Sharpe ratio and realized expected utility of long-horizon portfolios are frequently lower than that of a one-period portfolio, which casts doubt on the value of time diversification.
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Paper provided by Center for Research on Pensions and Welfare Policies, Turin (Italy) in its series CeRP Working Papers with number
82.
References listed on IDEAS Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
William Goetzmann & Jonathan Ingersoll & Matthew I. Spiegel & Ivo Welch, 2002.
"Sharpening Sharpe Ratios,"
NBER Working Papers
9116, National Bureau of Economic Research, Inc.
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Other versions:
John G. Gallo & Larry J. Lockwood & Mauricio Rodriguez, 2006.
"Differentiating CREF Performance,"
Real Estate Economics,
American Real Estate and Urban Economics Association, vol. 34(2), pages 173-209, 06.
[Downloadable!] (restricted)