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International Portfolio Allocation under Model Uncertainty

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  • Pierpaolo Benigno
  • Salvatore Nisticò

Abstract

This paper revisits an old argument, hedging real exchange rate risk, as an explanation of the international home bias in equity. In a dynamic model, the relevant risk to be hedged is the long-run risk as opposed to the short-run risk. Domestic equity is indeed a good hedge with respect to long-run real-exchange-rate risk. Two new frameworks are able to explain a large share of the observed US home bias: a model with Hansen-Sargent preferences in which agents fear model misspecification and a model with Epstein-Zin preferences. These two models are also immune to the risk-free rate puzzle. (JEL C58, F31, G11, G15)

Suggested Citation

  • Pierpaolo Benigno & Salvatore Nisticò, 2012. "International Portfolio Allocation under Model Uncertainty," American Economic Journal: Macroeconomics, American Economic Association, vol. 4(1), pages 144-189, January.
    • Handle: RePEc:aea:aejmac:v:4:y:2012:i:1:p:144-89
    Note: DOI: 10.1257/mac.4.1.144
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    More about this item

    JEL classification:

    • C58 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Financial Econometrics
    • F31 - International Economics - - International Finance - - - Foreign Exchange
    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
    • G15 - Financial Economics - - General Financial Markets - - - International Financial Markets

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