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The Home Bias and Capital Income Flows between Countries and Regions

  • Michael J. Artis
  • Mathias Hoffmann

This paper documents a marked increase in international consumption risk sharing throughout the recent globalization period. Unlike earlier studies that have found it difficult to document a consistent effect of financial globalization on international consumption comovements, we make use of the information implicit in the relative levels of consumption and output to measure long-run risk sharing among OECD countries and US federal states. We derive our empirical setup from a deliberately simplistic model in which countries can trade perpetual claims to each other's output (Shiller securities). Our framework allows us to distinguish between two channels of risk sharing: ex ante diversification that leads to income smoothing through capital income flows and ex-post consumption smoothing through savings and dissavings. The model successfully replicates the patterns of income and consumption smoothing observed in both U.S. state-level and international data. The increase in international consumption risk sharing is closely associated with the decline in international portfolio home bias. While capital income flows remain relatively limited as a channel of risk sharing at business cycle frequencies, we find that better international portfolio diversification has led to a considerable increase in capital income flows at medium and long horizons.

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Paper provided by Institute for Empirical Research in Economics - University of Zurich in its series IEW - Working Papers with number 316.

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Date of creation: Mar 2007
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Handle: RePEc:zur:iewwpx:316
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  14. Peter C.B. Phillips & Hyungsik R. Moon, 1999. "Linear Regression Limit Theory for Nonstationary Panel Data," Cowles Foundation Discussion Papers 1222, Cowles Foundation for Research in Economics, Yale University.
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  16. Nelson C. Mark & Donggyu Sul, 2003. "Cointegration Vector Estimation by Panel DOLS and Long-run Money Demand," Oxford Bulletin of Economics and Statistics, Department of Economics, University of Oxford, vol. 65(5), pages 655-680, December.
  17. Becker, Sascha O. & Hoffmann, Mathias, 2006. "Intra- and international risk-sharing in the short run and the long run," European Economic Review, Elsevier, vol. 50(3), pages 777-806, April.
  18. Asdrubali, Pierfederico & Sorensen, Bent E & Yosha, Oved, 1996. "Channels of Interstate Risk Sharing: United States 1963-1990," The Quarterly Journal of Economics, MIT Press, vol. 111(4), pages 1081-1110, November.
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