IDEAS home Printed from
MyIDEAS: Login to save this paper or follow this series

International Portfolio Allocation under Model Uncertainty

  • Pierpaolo Benigno
  • Salvatore Nisticò

This paper proposes an explanation of the international home bias in equity based on ambiguity aversion. Doubts imply an additional hedging motif driven by the interaction between real exchange rate risk and ambiguity aversion. What matters is the long-run as opposed to the short-run risk. Domestic equity is a good hedge with respect to long-run real exchange rate risk even when bonds are traded. The higher is the degree of ambiguity aversion, the stronger is the home bias. We identify the degree of ambiguity aversion with detection error probabilities and show that our framework is able to explain a large share of the observed US home bias, as well as other stylized facts on US cross-border asset holdings. Without doubts, a standard open-economy macroeconomic model would be unsuccessful along all these dimensions. An older version of this paper is available at to NBER subscribers and those in domains eligible for free downloads. Individual purchasers of papers are directed to email or to call 617 588-1405 to purchase the older version.

If 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.

File URL:
Download Restriction: no

Paper provided by National Bureau of Economic Research, Inc in its series NBER Working Papers with number 14734.

in new window

Date of creation: Feb 2009
Date of revision:
Publication status: published as Pierpaolo Benigno & Salvatore Nistico, 2012. "International Portfolio Allocation under Model Uncertainty," American Economic Journal: Macroeconomics, American Economic Association, vol. 4(1), pages 144-89, January.
Handle: RePEc:nbr:nberwo:14734
Contact details of provider: Postal: National Bureau of Economic Research, 1050 Massachusetts Avenue Cambridge, MA 02138, U.S.A.
Phone: 617-868-3900
Web page:

More information through EDIRC

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.:

as in new window
  1. Riccardo Colacito & Mariano Croce, 2005. "Risks For The Long Run And The Real Exchange Rate," 2005 Meeting Papers 794, Society for Economic Dynamics.
  2. Nicolas Coeurdacier & Robert Kollmann & Philippe Martin, 2007. "International portfolios with supply, demand and redistributive shocks," Post-Print hal-01053624, HAL.
  3. Kollmann, Robert, 2006. "International Portfolio Equilibrium and the Current Account," CEPR Discussion Papers 5512, C.E.P.R. Discussion Papers.
  4. Michael B. Devereux & Alan Sutherland, 2008. "Country Portfolios in Open Economy Macro Models," NBER Working Papers 14372, National Bureau of Economic Research, Inc.
  5. Strzalecki, Tomasz, 2011. "Axiomatic Foundations of Multiplier Preferences," Scholarly Articles 14397610, Harvard University Department of Economics.
  6. David K. Backus & Federico Gavazzoni & Christopher Telmer & Stanley E. Zin, 2010. "Monetary Policy and the Uncovered Interest Parity Puzzle," NBER Working Papers 16218, National Bureau of Economic Research, Inc.
  7. Harold L. Cole & Maurice Obstfeld, 1989. "Commodity Trade and International Risk Sharing: How Much Do Financial Markets Matter?," NBER Working Papers 3027, National Bureau of Economic Research, Inc.
  8. Strzalecki, Tomasz, 2013. "Temporal Resolution of Uncertainty and Recursive Models of Ambiguity Aversion," Scholarly Articles 12967691, Harvard University Department of Economics.
  9. Giannis Vardas & Anastasios Xepapadeas, 2004. "Uncertainty Aversion and Robust Portfolio Choices," Working Papers 0408, University of Crete, Department of Economics.
  10. repec:spo:wpecon:info:hdl:2441/c8dmi8nm4pdjkuc9g708n2m4m is not listed on IDEAS
  11. Robert J. Shiller, 1993. "Aggregate Income Risks and Hedging Mechanisms," Cowles Foundation Discussion Papers 1048, Cowles Foundation for Research in Economics, Yale University.
  12. repec:spo:wpecon:info:hdl:2441/c8dmi8nm4pdjkuc9g821o6lsg is not listed on IDEAS
  13. David Backus & Bryan Routledge & Stanley Zin, 2004. "Exotic Preferences for Macroeconomists," Working Papers 04-20, New York University, Leonard N. Stern School of Business, Department of Economics.
  14. Hansen, Lars Peter & Sargent, Thomas J., 2005. "Robust estimation and control under commitment," Journal of Economic Theory, Elsevier, vol. 124(2), pages 258-301, October.
Full references (including those not matched with items on IDEAS)

This item is featured on the following reading lists or Wikipedia pages:

  1. International Portfolio Allocation under Model Uncertainty (AEJ:MA 2011) in ReplicationWiki

When requesting a correction, please mention this item's handle: RePEc:nbr:nberwo:14734. See general information about how to correct material in RePEc.

For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: ()

If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

If references are entirely missing, you can add them using this form.

If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.

If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.

Please note that corrections may take a couple of weeks to filter through the various RePEc services.

This information is provided to you by IDEAS at the Research Division of the Federal Reserve Bank of St. Louis using RePEc data.