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AER2025

The Debt-Inflation Channel of the German (Hyper)Inflation

Markus Brunnermeier, Sergio Correia, Stephan Luck, Emil Verner, Tom Zimmermann

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1
Latest record
2025-07-01
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AER
TL;DR

This paper studies how a large increase in the price level is transmitted to the real economy through firm balance sheets.

AERLabor
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AER
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Labor
Methods and data
Descriptive
Abstract

This paper studies how a large increase in the price level is transmitted to the real economy through firm balance sheets. Using newly digitized macro- and micro-level data from the German inflation of 1919–1923, we show inflation led to a large reduction in real debt burdens and bankruptcies. Firms with higher nominal liabilities at the onset of inflation experienced a larger decline in interest expenses, a relative increase in their equity values, and higher employment during the inflation. The results are consistent with real effects of a debt-inflation channel that operates even when prices and wages are flexible. (JEL D22, E23, E31, G32, N14, N24)

Source versions
AER2025-07-01
American Economic Review 115(7):2111-2150
10.1257/aer.20230685
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