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IZA Discussion Paper No. 18633
May 2026
Credit Supply, Firms, and Earnings Inequality
Christian Moser, Farzad Saidi, Benjamin Wirth, Stefanie Wolter

We study the distributional consequences of monetary policy-induced credit supply in the German labor market. Firms in relationships with banks that are more exposed to the introduction of negative interest rates in 2014 experience a relative contraction in credit supply, associated with lower average wages. Within firms, initially lower-paid workers are more likely to leave employment, while initially higher-paid workers see a relative decline in wages. Between firms, wages fall by more at initially higher-paying employers. Our results suggest that credit affects the distribution of wages and employment both within and between firms.

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Mark Fallak
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Olga Nottmeyer
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Christina Gathmann
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Das IZA@LISER-Netzwerk ist eine weltweite Gemeinschaft für exzellente Forschung in der Arbeitsmarktökonomie und angrenzenden Fachgebieten. Nach dem Wechsel von Bonn wird das Netzwerk nun am Luxembourg Institute of Socio-Economic Research (LISER) koordiniert.

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