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Journal of money credit and banking· 2026Q1

Fisher Dynamics, Monetary Policy, and Household Indebtedness

Andreas Fagereng, Magnus Gulbrandsen, Martin Blomhoff Holm, Gisle James Natvik

Short summary

Household debt-to-income ratios decline after interest rate hikes, with debt changes dominating 'Fisher dynamics' (interest income/expenses, real income growth, inflation) across all subgroups, including highly indebted ones.

AI-generated from the title and abstract; the full text is not read.

Key points

  • Household debt-to-income ratios are influenced by nominal debt changes and 'Fisher dynamics' (interest, real income, inflation).
  • Debt changes generally outweigh Fisher dynamics, except in highly leveraged households.
  • Interest rate hikes lead to declining debt-to-income ratios, driven by debt changes overriding Fisher dynamics.
  • This effect holds across various subgroups, including highly indebted, recent movers, and those with liquidity constraints or high unemployment risk.

AI-generated from the title and abstract; the full text is not read.

Abstract

Abstract Growth in household debt‐to‐income ratios reflects nominal debt changes or “Fisher dynamics” due to interest income and expenses, real income growth, and inflation. Using two decades of microdata on all Norwegian households, we decompose these channels' roles in how debt‐to‐income evolves over time and in response to monetary policy shocks. On average, debt changes outsize Fisher dynamics, except among highly leveraged households. After interest rate hikes, the channels pull in opposite directions, but the debt changes dominate, so debt‐to‐income ratios decline. This holds across subgroups, including highly indebted households, recent movers, and those facing liquidity constraints or high unemployment risk.

The authors' abstract, as published at the source. Journal of money credit and banking, 2026 · DOI ↗

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Field: General Economics, Econometrics and Finance

General Economics, Econometrics and FinanceEconomics, Econometrics and Finance