Intermediation in the Interbank Lending Market

88 Pages Posted: 7 Aug 2019 Last revised: 14 May 2021

See all articles by Ben R. Craig

Ben R. Craig

Federal Reserve Bank of Cleveland; Deutsche Bundesbank

Yiming Ma

Columbia University - Columbia Business School

Date Written: May 5, 2021

Abstract

This paper studies systemic risk in the interbank market. We first establish that in the German interbank lending market, a few large banks intermediate funding flows between many smaller periphery banks. We then develop a network model in which banks trade off the costs and benefits of link formation to explain these patterns. The model is structurally estimated using banks' preferences as revealed by the observed network structure before the 2008 financial crisis. The model describes why the interbank intermediation arrangement arises, estimates the frictions underlying the arrangement, and quantifies how shocks are transmitted across the network. In out-of-sample tests, model estimates based on pre-crisis data successfully predict changes in the network structure and lending to firms during the 2008 financial crisis. Finally, for each of the intermediaries, we quantify systemic risk and the impact of ECB funding in reducing this risk.

Keywords: systemic risk, Interbank markets, networks, structural estimation

JEL Classification: G21, G01

Suggested Citation

Craig, Ben R. and Ma, Yiming, Intermediation in the Interbank Lending Market (May 5, 2021). Columbia Business School Research Paper Forthcoming, Available at SSRN: https://ssrn.com/abstract=3432001 or http://dx.doi.org/10.2139/ssrn.3432001

Ben R. Craig

Federal Reserve Bank of Cleveland ( email )

PO Box 6387
Cleveland, OH 44101
United States
216-579-2061 (Phone)
216-579-3050 (Fax)

Deutsche Bundesbank

Wilhelm-Epstein-Str. 14
Frankfurt/Main, 60431
Germany

Yiming Ma (Contact Author)

Columbia University - Columbia Business School ( email )

3022 Broadway
New York, NY 10027
United States

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