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Human capital and international portfolio diversification: a reappraisal

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  • Bretscher, Lorenzo
  • Julliard, Christian
  • Rosa, Carlo
Abstract
We study the implications of human capital hedging for international portfolio choice. First, we document that, at the household level, the degree of home country bias in equity holdings is increasing in the labor income to financial wealth ratio. We show that a heterogeneous agent model in which households face short selling constraints and labor income risk, calibrated to match both micro and macro labor income and asset returns data, can both rationalize this finding and generate a large aggregate home country bias in portfolio holdings. Second, we find that the empirical evidence supporting the belief that the human capital hedging motive should skew domestic portfolios toward foreign assets, is driven by an econometric misspecification rejected by the data. Third, we show that, given the high degree of international GDP correlations in the data, very small domestic redistributive shocks are sufficient to skew portfolios toward domestic assets.

Suggested Citation

  • Bretscher, Lorenzo & Julliard, Christian & Rosa, Carlo, 2015. "Human capital and international portfolio diversification: a reappraisal," LSE Research Online Documents on Economics 65091, London School of Economics and Political Science, LSE Library.
    • Handle: RePEc:ehl:lserod:65091
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    Keywords

    home country bias; incomplete markets; international diversification puzzle; non-traded human capital; hedging human capital; optimal portfolio choice.;
    All these keywords.

    JEL classification:

    • F30 - International Economics - - International Finance - - - General
    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates

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