No. 16-3 A Dynamic Network Model of the Unsecured Interbank Lending Market Francisco Blasques, Falk Bräuning, and Iman van Lelyveld Abstract: We introduce a dynamic network model of interbank lending and estimate the parameters by indirect inference using network statistics of the Dutch interbank market from mid-February 2008 through April 2011. We find that credit-risk uncertainty and peer monitoring are significant factors in explaining the market’s sparse core-periphery structure and the presence of relationship lending. Shocks to credit-risk uncertainty lead to extended periods of low market activity, intensified by a reduction in peer monitoring. Moreover, changes in the central bank’s interest-rate corridor have a direct effect on the market as well as an indirect effect that acts to change banks’ monitoring efforts. JEL Classifications: C33, C51, E52, G01, G21 Keywords: interbank liquidity, financial networks, credit-risk uncertainty, peer monitoring, monetary policy, trading relationships, indirect parameter estimation Francisco Blasques is an assistant professor of economics at VU University Amsterdam and the Tinbergen Institute. His e-mail address is
[email protected]. Falk Bräuning, the corresponding author, is an economist in the research department at the Federal Reserve Bank of Boston. His e-mail address is
[email protected]. Iman van Lelyveld is a senior policy advisor with De Nederlandsche Bank. His e-mail address is
[email protected]. The authors thank Henrique Basso, Darrell Duffie, Lucy Gornicka, Siem Jan Koopman, Marco van der Leij, Andre Lucas, Patrick McGuire, Albert Menkveld, Joe Peek, Gabriel Perez Quiros, Gerhard Rünstler, and Hyun Song Shin for comments.