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The Significance of the Market Portfolio

Author

Listed:
  • Robert J. Shiller

    (Cowles Foundation)

  • Stefano Athanasoulis

    (University of Notre Dame, Department of Finance)

Abstract

Arguments for creating a market to allow trading the portfolio of all endowments in the entire world, the "market portfolio," are considered. This world share market would represent a radical innovation, since at the present time only a small fraction of world endowments are traded. Using a stochastic endowment economy where preferences are mean-variance, it is shown that creating such a market may be justified in terms of its contribution to social welfare. It is also argued that creating a market for world shares is attractive for certain reasons of robustness and simplicity.

Suggested Citation

  • Robert J. Shiller & Stefano Athanasoulis, 2001. "The Significance of the Market Portfolio," Yale School of Management Working Papers ysm133, Yale School of Management.
    • Handle: RePEc:ysm:somwrk:ysm133
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    Cited by:

    1. is not listed on IDEAS
    2. Olkhov, Victor, 2025. "Market-based variance of market portfolio and of entire market," MPRA Paper 126487, University Library of Munich, Germany.
    3. G. Glenn Baigent & William Acar, 2015. "On the economic significance of the benchmark portfolio," Journal of Economic and Financial Studies (JEFS), LAR Center Press, vol. 3(6), pages 16-25, December.
    4. Robert J. Shiller & Stefano Athanasoulis, 1995. "World Income Components: Measuring and Exploiting International Risk Sharing Opportunities," NBER Working Papers 5095, National Bureau of Economic Research, Inc.
    5. Shawn Cole & Xavier Gine & Jeremy Tobacman & Petia Topalova & Robert Townsend & James Vickery, 2013. "Barriers to Household Risk Management: Evidence from India," American Economic Journal: Applied Economics, American Economic Association, vol. 5(1), pages 104-135, January.
    6. Miklós Koren, 2003. "Financial Globalization, Portfolio Diversification, and the Pattern of International Trade," IMF Working Papers 2003/233, International Monetary Fund.
    7. Mark J. Kamstra & Robert J. Shiller, 2009. "The Case for Trills: Giving the People and Their Pension Funds a Stake in the Wealth of the Nation," Cowles Foundation Discussion Papers 1717, Cowles Foundation for Research in Economics, Yale University.
    8. Maria Giduskova & Borja Larrain, 2006. "International risk-taking, volatility, and consumption growth," Communities and Banking, Federal Reserve Bank of Boston.
    9. Bisin, Alberto & Acharya, Viral, 2002. "Entrepreneurial Incentives in Stock Market Economies," CEPR Discussion Papers 3474, C.E.P.R. Discussion Papers.
    10. Mark J. Kamstra & Robert J. Shiller, 2009. "The Case for Trills: Giving the People and Their Pension Funds a Stake in the Wealth of the Nation," Cowles Foundation Discussion Papers 1717, Cowles Foundation for Research in Economics, Yale University.
    11. Bossaerts, Peter & Fine, Leslie & Ledyard, John, 2002. "Inducing liquidity in thin financial markets through combined-value trading mechanisms," European Economic Review, Elsevier, vol. 46(9), pages 1671-1695, October.
    12. Meryem Masmoudi & Fouad Ben Abdelaziz, 2018. "Portfolio selection problem: a review of deterministic and stochastic multiple objective programming models," Annals of Operations Research, Springer, vol. 267(1), pages 335-352, August.
    13. Shiller, Robert J., 1999. "Social security and institutions for intergenerational, intragenerational, and international risk-sharing," Carnegie-Rochester Conference Series on Public Policy, Elsevier, vol. 50(1), pages 165-204, June.
    14. Robert J. Shiller, 1997. "Expanding the Scope of Individual Risk Management: Moral Hazard and Other Behavioral Considerations," Cowles Foundation Discussion Papers 1145, Cowles Foundation for Research in Economics, Yale University.
    15. Athanasoulis, Stefano G. & Shiller, Robert J., 2002. "Defining residual risk-sharing opportunities: Pooling world income components," Research in Economics, Elsevier, vol. 56(1), pages 61-84, June.
    16. Calvet, Laurent & Gonzalez-Eiras, Martín & Sodini, Paolo, 2004. "Financial Innovation, Market Participation, and Asset Prices," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 39(3), pages 431-459, September.
    17. Rampini, Adriano A. & Viswanathan, S., 2018. "Financing Insurance," CEPR Discussion Papers 12855, C.E.P.R. Discussion Papers.
    18. Viral V. Acharya & Alberto Bisin, 2005. "Optimal Financial-Market Integration and Security Design," The Journal of Business, University of Chicago Press, vol. 78(6), pages 2397-2434, November.
    19. Stefano G. Athanasoulis & Robert J. Shiller, 2001. "World Income Components: Measuring and Exploiting Risk-Sharing Opportunities," American Economic Review, American Economic Association, vol. 91(4), pages 1031-1054, September.
    20. Graham, Liam & Wright, Stephen, 2010. "Information, heterogeneity and market incompleteness," Journal of Monetary Economics, Elsevier, vol. 57(2), pages 164-174, March.

    More about this item

    JEL classification:

    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates
    • G10 - Financial Economics - - General Financial Markets - - - General (includes Measurement and Data)

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