Outstanding Debt and the Household Portfolio
研究了家庭债务如何影响投资决策，发现抵押债务使家庭持有股票和债券的可能性分别降低10%和37%，并指出26%的家庭因高利率债务应放弃股市参与。
This article examines the effect of household debt on investment decisions. We alter a simple portfolio choice model to allow households to retire outstanding debt and realize a risk-free rate of return equal to the interest rate on that debt. Using the Survey of Consumer Finances, we find that households with mortgage debt are 10% less likely to own stocks and 37% less likely to own bonds compared to similar households with no mortgage debt. We calculate the costs of nonoptimal investment in the presence of various forms of household debt. We find that 26% of households should forgo equity market participation on account of the high interest rates they pay on their debt. The Author 2010. Published by Oxford University Press on behalf of The Society for Financial Studies. All rights reserved. For Permissions, please e-mail: journals.permissions@oxfordjournals.org., Oxford University Press.