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Financial Literacy and Portfolio Diversification

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  • Luigi Guiso
  • Tullio Jappelli

Abstract

In this paper we focus on poor financial literacy as one potential factor explaining lack of portfolio diversification. We use the 2007 Unicredit Customers' Survey, which has indicators of portfolio choice, financial literacy and many demographic characteristics of investors. We first propose test-based indicators of financial literacy and document the extent of portfolio under-diversification. We find that measures of financial literacy are strongly correlated with the degree of portfolio diversification. We also compare the test-based degree of financial literacy with investors' self-assessment of their financial knowledge, and find only a weak relation between the two measures, an issue that has gained importance after the EU Markets in Financial Instruments Directive (MIFID) has required financial institutions to rate investors' financial sophistication through questionnaires.

Suggested Citation

  • Luigi Guiso & Tullio Jappelli, 2008. "Financial Literacy and Portfolio Diversification," Economics Working Papers ECO2008/31, European University Institute.
    • Handle: RePEc:eui:euiwps:eco2008/31
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    References listed on IDEAS

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    More about this item

    Keywords

    Financial literacy; Portfolio diversification;

    JEL classification:

    • E2 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment
    • D8 - Microeconomics - - Information, Knowledge, and Uncertainty
    • G1 - Financial Economics - - General Financial Markets

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