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Bank Response to Higher Capital Requirements: Evidence from a Quasi-natural Experiment

We study the impact of higher capital requirements on banks’ balance sheets and its transmission to the real economy. The 2011 EBA capital exercise provides an almost ideal quasi-natural experiment, which allows us to identify the effect of higher capital requirements using a difference-in-differences matching estimator. We find that treated banks increase their capital ratios not by raising their levels of equity, but by reducing their credit supply. We also show that this reduction in credit supply results in lower firm-, investment-, and sales growth for firms which obtain a larger share of their bank credit from the treated banks.

14. Dezember 2016

Autoren Reint E. Gropp Thomas Mosk Steven Ongena Carlo Wix

Professor Reint E. Gropp, Ph.D.

Über den Autor

Professor Reint E. Gropp, Ph.D.

Reint E. Gropp ist seit November 2014 Präsident des IWH und ist Inhaber eines Lehrstuhls für Volkswirtschaftslehre an der Otto-von-Guericke-Universität Magdeburg. Er ist Associate Fellow des Center for Economic Policy Research (CEPR) und Berater verschiedener Zentralbanken.

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Bank Response to Higher Capital Requirements: Evidence from a Quasi-natural Experiment

Reint E. Gropp Thomas Mosk Steven Ongena Carlo Wix

in: Review of Financial Studies, Nr. 1, 2019

Abstract

We study the impact of higher capital requirements on banks’ balance sheets and their transmission to the real economy. The 2011 EBA capital exercise is an almost ideal quasi-natural experiment to identify this impact with a difference-in-differences matching estimator. We find that treated banks increase their capital ratios by reducing their risk-weighted assets, not by raising their levels of equity, consistent with debt overhang. Banks reduce lending to corporate and retail customers, resulting in lower asset, investment, and sales growth for firms obtaining a larger share of their bank credit from the treated banks.

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