Inflation and the Role of Bonds in Investor Portfolios
AbstractThis paper explores both theoretically and enirically the role of nominalbonds of various maturities in investor portfolios in the U.S. One of its principal goals is to determine whether an investor who is constrained to limithis investment in bonds to a single portfolio of money-fixed debt instruments will suffer a serious welfare loss. Our interest in this question stemsi n part from the observation that many employer-sponsored savings plans limit a participant's investment choices to two types, a common stock fund and a money-fixed bond fund of a particular maturity. A second goal is to study the desirability and feasibility of introducing a market for index bonds (i.e. an asset offering a riskless real rate of return) in the U.S. capital markets.The theoretical framework is Merton's (1971) continuous time model of consumption and portfolio choice. Our measure of the welfare gain or loss from a given change in the investor's opportunity set is the increment to current wealth needed to completely offset the effect of the change. A novel feature of our empirical approach is the method of deriving equilibrium risk premia on the various asset classes. We employ the variance-covariance matrix of real rates of return estimated from historical data in combination with "reasonable" assumptions about net asset supplies and the economy-wide average degree of risk aversion to derive numerical values for these risk premia. This procedure allows us to circumvent the formidable estimation problems associated with using historical means, which are negative during some subperiods.Our main results are: (i) There can be a substantial loss in welfare for participants in savings plans offering a choice of only two funds, a diversified stock fund and an intermediate-term bond fund. Most of this loss can be eliminated by introducing as a third option a money market fund.(2) The potential welfare gain from the introduction of private index bonds in the U.S.capital market is probably not large enough to justify the costs of innovation.The major reason for the small gain is that one month bills with their small variance of real returns are an effective substitute for index bonds.
Download InfoIf you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
Bibliographic InfoPaper provided by National Bureau of Economic Research, Inc in its series NBER Working Papers with number 1091.
Date of creation: Jun 1985
Date of revision:
Publication status: published as Zvi Bodie, Alex Kane, Robert McDonald. "Inflation and the Role of Bonds in Investor Portfolios," in Benjamin M. Friedman, ed., "Corporate Capital Structures in the United States" University of Chicago Press (1985)
Contact details of provider:
Postal: National Bureau of Economic Research, 1050 Massachusetts Avenue Cambridge, MA 02138, U.S.A.
Web page: http://www.nber.org
More information through EDIRC
Other versions of this item:
- Zvi Bodie & Alex Kane & Robert McDonald, 1985. "Inflation and the Role of Bonds in Investor Portfolios," NBER Chapters, in: Corporate Capital Structures in the United States, pages 167-196 National Bureau of Economic Research, Inc.
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.:
- Zvi Bodie, 1982. "Inflation Risk and Capital Market Equilibrium," NBER Working Papers 0373, National Bureau of Economic Research, Inc.
- Fischer, Stanley, 1975. "The Demand for Index Bonds," Journal of Political Economy, University of Chicago Press, vol. 83(3), pages 509-34, June.
- Friend, Irwin & Blume, Marshall E, 1975. "The Demand for Risky Assets," American Economic Review, American Economic Association, vol. 65(5), pages 900-922, December.
- Merton, Robert C, 1969. "Lifetime Portfolio Selection under Uncertainty: The Continuous-Time Case," The Review of Economics and Statistics, MIT Press, vol. 51(3), pages 247-57, August.
- John Y. Campbell & Luis M. Viceira, 1998.
"Who Should Buy Long-Term Bonds?,"
NBER Working Papers
6801, National Bureau of Economic Research, Inc.
- John Y. Campbell & Luis M. Viceira, 2000. "Who Should Buy Long-Term Bonds?," Harvard Institute of Economic Research Working Papers 1895, Harvard - Institute of Economic Research.
- John Y. CAMPBELL & Luis VICEIRA, 1998. "Who Should Buy Long-Term Bonds?," FAME Research Paper Series rp5, International Center for Financial Asset Management and Engineering.
- Viceira, Luis & Campbell, John, 2001. "Who Should Buy Long-Term Bonds?," Scholarly Articles 3128709, Harvard University Department of Economics.
- Haselmann, Rainer & Helmut, Herwartz, 2005. "The Introduction of the Euro and its Effects on Investment Decisions," Economics Working Papers 2005,15, Christian-Albrechts-University of Kiel, Department of Economics.
- Barsky, Robert B, 1989.
"Why Don't the Prices of Stocks and Bonds Move Together?,"
American Economic Review,
American Economic Association, vol. 79(5), pages 1132-45, December.
- Robert B. Barsky, 1986. "Why Don't the Prices of Stocks and Bonds Move Together?," NBER Working Papers 2047, National Bureau of Economic Research, Inc.
- Benjamin M. Friedman & Mark Warshawsky, 1988. "Annuity Prices and Saving Behavior in the United States," NBER Working Papers 1683, National Bureau of Economic Research, Inc.
- Pindyck, Robert S, 1984.
"Risk, Inflation, and the Stock Market,"
American Economic Review,
American Economic Association, vol. 74(3), pages 335-51, June.
- Haselmann, Rainer & Herwartz, Helmut, 2010. "The introduction of the Euro and its effects on portfolio decisions," Journal of International Money and Finance, Elsevier, vol. 29(1), pages 94-110, February.
- David Eagle, 2005. "The Pareto-Efficient Relativity of Relative Risk Aversion," Microeconomics 0509004, EconWPA.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: ().
If references are entirely missing, you can add them using this form.