Portfolio Choice: Familiarity, Hedging, and Industry Bias

Xin Che, Andre P. Liebenberg and Andrew A. Lynch

Journal of Financial and Quantitative Analysis, 2021, vol. 56, issue 8, 2870-2893

Abstract: Investors may underdiversify their portfolios by overweighting securities in which they perceive an informational advantage or by underweighting securities to hedge risks outside the portfolio. We investigate underdiversification in institutional portfolio construction by examining the under/overweighting of industries in U.S. property–liability (PL) insurers’ equity portfolios. We find that PL insurers underweight both their own industry and highly correlated industries in their portfolios. This underweighting is larger for PL insurers exposed to higher underwriting risk. Although PL insurers have an informational advantage in investing in their peers, their underwriting risk drives them to underweight stocks in their industry.

Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:cup:jfinqa:v:56:y:2021:i:8:p:2870-2893_9

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