Tax Incentives, Portfolio Choice, and Macroprudential Risks

Janosch Brenzel-Weiss, Winfried Koeniger and Arnau Valladares-Esteban
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Janosch Brenzel-Weiss: Swiss National Science Foundation
Winfried Koeniger: University of St. Gallen; CESifo (Center for Economic Studies and Ifo Institute); Center for Financial Studies (CFS); IZA Institute of Labor Economics; Swiss Finance Institute
Arnau Valladares-Esteban: University of St. Gallen

No 26-14, Swiss Finance Institute Research Paper Series from Swiss Finance Institute

Abstract: We calibrate a lifecycle portfolio-choice model of homeowners facing uninsurable income risk to show that tax deductions for mortgage interest payments and voluntary pension contributions have sizable effects on household portfolios and macroprudential risks. The deductions reduce the after-tax cost of debt and increase the after-tax return of pension savings so that the mortgage incidence increases and portfolios shift from home equity and liquid assets towards pension savings. Because the consumption responses to a house-price decline are heterogeneous, the distribution of household debt shapes the quantitative effect of the tax deductions on the homeowners' resilience after a house price bust.

Keywords: Mortgage amortization; Tax incentives; Household consumption; Portfolio choice; Housing busts; Economic stability; Macroprudential policy (search for similar items in EconPapers)
JEL-codes: D14 D15 D31 E21 G11 G21 H24 (search for similar items in EconPapers)
Pages: 50 pages
Date: 2026-01
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Persistent link: https://EconPapers.repec.org/RePEc:chf:rpseri:rp2614

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