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Return Volatility and International Portfolio Choice

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  • Nicolas Coeurdacier

    (ESSEC and Paris School of Economics)

  • Robert Kollmann

    (ECARES, Free University of Brussels & CEPR)

  • Philippe Martin

    (University Paris I & CEPR)

Abstract

Despite the liberalization of international capital flows during the last decades, typical investors continue to hold most of their wealth in domestic assets. International RBC models can explain that 'portfolio home bias', if consumption home bias is incorporated, i.e. the fact that the bulk of consumption consists of locally produced goods (Obstfeld (2006)). However RBC models fail to explain the high volatility of equity returns and real exchange rates, and predict excessive cross-country risk sharing. This paper develops a model that simultaneously generates realistic portfolio holdings and return volatilities, and imperfect risk pooling. In the structure here, there are supply shocks, aggregate demand shocks (variations in government purchases, taste shocks), and exogenous shocks to equity risk premia. There is trade in domestic and foreign stocks and bonds. Demand shocks and risk premium shocks generate realistic return volatility, and create a strong bias towards holding local equity. Intuitively, a country-specific demand increase raises the relative price of the locally produced good, if there is consumption home bias, and it thus raises the relative return on local equity; local equity thus has a high return, in states of the world in which the household wishes to consume a lot. By biasing their portfolios toward local equity, countries can also insulate their net foreign assets and consumption spending, from exogenous risk premium shocks. When taste shocks follow random walks, there are sunspot equilibria characterized by sizable departures from full risk sharing.

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Bibliographic Info

Paper provided by Society for Economic Dynamics in its series 2007 Meeting Papers with number 474.

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Date of creation: 2007
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Handle: RePEc:red:sed007:474

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  1. Maurice Obstfeld & Kenneth Rogoff & Ben Bernanke & Kenneth Rogoff, . "The Six Major Puzzles in International Macroeconomics: Is there a Common Cause?," Working Paper 32326, Harvard University OpenScholar.
  2. Philippe Martin and H�l�ne Rey., 2000. "Financial Super-Markets: Size Matters for Asset Trade," Center for International and Development Economics Research (CIDER) Working Papers C00-110, University of California at Berkeley.
  3. V. V Chari & Patrick J. Kehoe & Ellen R. McGrattan, 2002. "Can Sticky Price Models Generate Volatile and Persistent Real Exchange Rates?," Review of Economic Studies, Oxford University Press, vol. 69(3), pages 533-563.
  4. Anna Pavlova & Roberto Rigobon, 2003. "Asset Prices and Exchange Rates," NBER Working Papers 9834, National Bureau of Economic Research, Inc.
  5. Hélène Rey & Philippe Martin, 2006. "Globalization and Emerging Markets: With or Without Crash?," American Economic Review, American Economic Association, vol. 96(5), pages 1631-1651, December.
  6. Jonathan Heathcote & Fabrizio Perri, 2002. "Financial Globalization and Real Regionalization," NBER Working Papers 9292, National Bureau of Economic Research, Inc.
  7. Robert Kollmann, 1995. "Consumption, real exchange rates and the structure of international asset markets," ULB Institutional Repository 2013/7642, ULB -- Universite Libre de Bruxelles.
  8. Heathcote, Jonathan & Perri, Fabrizio, 2008. "The International Diversification Puzzle is Not as Bad as You Think," CEPR Discussion Papers 6982, C.E.P.R. Discussion Papers.
  9. Fabio Ghironi & Jaewoo Lee & Alessandro Rebucci, 2007. "The Valuation Channel of External Adjustment," NBER Working Papers 12937, National Bureau of Economic Research, Inc.
  10. Fabio Ghironi, 2000. "Macroeconomic Interdependence under Incomplete Markets," Boston College Working Papers in Economics 471, Boston College Department of Economics, revised 07 Feb 2003.
  11. Backus, David K. & Smith, Gregor W., 1993. "Consumption and real exchange rates in dynamic economies with non-traded goods," Journal of International Economics, Elsevier, vol. 35(3-4), pages 297-316, November.
  12. Charles Engel & Akito Matsumoto, 2006. "Portfolio Choice in a Monetary Open-Economy DSGE Model," NBER Working Papers 12214, National Bureau of Economic Research, Inc.
  13. Robert Kollmann, 2006. "A dynamic general equilibrium model of international portfolio holding: comment," ULB Institutional Repository 2013/7622, ULB -- Universite Libre de Bruxelles.
  14. Kollmann, Robert, 1996. "Incomplete asset markets and the cross-country consumption correlation puzzle," Journal of Economic Dynamics and Control, Elsevier, vol. 20(5), pages 945-961, May.
  15. Kollmann, Robert, 2006. "International Portfolio Equilibrium and the Current Account," CEPR Discussion Papers 5512, C.E.P.R. Discussion Papers.
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