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Do Inflation-Linked Bonds Still Diversify?

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  • Marie Briere
  • Ombretta Signori

Abstract

The diversifying power of inflation-linked (IL) bonds relative to traditional asset classes has changed significantly. In this paper, we study the dynamics of conditional volatilities and correlations for three asset classes, IL bonds, nominal bonds and equities, in the United States and Europe. Using a DCC-MVGARCH for the period 1997–2007, we highlight the change that took place in 2003. Although IL bonds once had definite diversification power, they are now highly correlated with nominal bonds and have reached similar volatility levels. As a result, the two asset classes are practically substitutable. This seems to be due to more stable inflation expectations and to a more liquid IL bond market. Although diversification was a valuable reason for introducing IL bonds before 2003, this is no longer the case. Dynamic portfolio optimization using our estimates of conditional correlations and volatilities clearly demonstrates that the optimal weight of IL bonds in a portfolio decreased sharply in 2003 in favor of nominal bonds and equities.

Suggested Citation

  • Marie Briere & Ombretta Signori, 2007. "Do Inflation-Linked Bonds Still Diversify?," Working Papers CEB 07-029.RS, ULB -- Universite Libre de Bruxelles.
  • Handle: RePEc:sol:wpaper:07-029
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    Cited by:

    1. Marie Brière & Ombretta Signori, 2011. "Inflation hedging portfolios in different regimes," BIS Papers chapters, in: Bank for International Settlements (ed.), Portfolio and risk management for central banks and sovereign wealth funds, volume 58, pages 139-163, Bank for International Settlements.
    2. Cartea, Álvaro & Saúl, Jonatan & Toro, Juan, 2012. "Optimal portfolio choice in real terms: Measuring the benefits of TIPS," Journal of Empirical Finance, Elsevier, vol. 19(5), pages 721-740.
    3. Brière, Marie & Szafarz, Ariane, 2015. "Does Commercial Microfinance Belong to the Financial Sector? Lessons from the Stock Market," World Development, Elsevier, vol. 67(C), pages 110-125.
    4. Brière, Marie & Signori, Ombretta, 2013. "Hedging inflation risk in a developing economy: The case of Brazil," Research in International Business and Finance, Elsevier, vol. 27(1), pages 209-222.
    5. Aglietta, Michel & Brière, Marie & Rigot, Sandra & Signori, Ombretta, 2012. "Rehabilitating the role of active management for pension funds," Journal of Banking & Finance, Elsevier, vol. 36(9), pages 2565-2574.
    6. John Y. Campbell & Robert J. Shiller & Luis M. Viceira, 2009. "Understanding Inflation-Indexed Bond Markets," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 40(1 (Spring), pages 79-138.
    7. Marie Brière & Ombretta Signori, 2012. "Inflation-Hedging Portfolios : Economic Regimes Matter," Post-Print hal-01494498, HAL.
    8. Swinkels, Laurens, 2018. "Simulating historical inflation-linked bond returns," Journal of Empirical Finance, Elsevier, vol. 48(C), pages 374-389.
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    12. Marie Briere & Ariane Szafarz, 2011. "Investment in Microfinance Equity: Risk, Return, and Diversification Benefits," Working Papers CEB 11-050, ULB -- Universite Libre de Bruxelles.
    13. repec:dau:papers:123456789/7744 is not listed on IDEAS
    14. John Y. Campbell & Robert J. Shiller & Luis M. Viceira, 2009. "Understanding Inflation-Indexed Bond Markets," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 40(1 (Spring), pages 79-138.
    15. Monika Chopra & Chhavi Mehta & Aman Srivastava, 2021. "Inflation-Linked Bonds as a Separate Asset Class: Evidence from Emerging and Developed Markets," Global Business Review, International Management Institute, vol. 22(1), pages 219-235, February.
    16. Covarrubias, Enrique & Hernández-del-Valle, Gerardo, 2016. "Inflation expectations derived from a portfolio model," MPRA Paper 69489, University Library of Munich, Germany.
    17. Mkaouar, Farid & Prigent, Jean-Luc & Abid, Ilyes, 2017. "Long-term investment with stochastic interest and inflation rates: The need for inflation-indexed bonds," Economic Modelling, Elsevier, vol. 67(C), pages 228-247.

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    More about this item

    Keywords

    inflation-linked bonds; optimal allocation; portfolio choice; conditional volatility; conditional correlation.;
    All these keywords.

    JEL classification:

    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates

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