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Core-Periphery Structure in the Overnight Money Market: Evidence from the e-MID Trading Platform

  • Thomas Lux, Daniel Fricke

We explore the network topology arising from a dataset of the overnight interbank transactions on the e-MID trading platform from January 1999 to December 2010. In order to shed light on the hierarchical structure of the banking system, we estimate different versions of a core-periphery model. Our main findings are: (1) A core-periphery structure provides a better fit for these interbank data than alternative network models, (2) the identified core is quite stable over time, consisting of roughly 28% of all banks before the global financial crisis (GFC) and 23% afterwards, (3) the majority of core banks can be classified as intermediaries, i.e. as banks both borrowing and lending money, (4) allowing for asymmetric `coreness’ with respect to lending and borrowing considerably improves the fit, and reveals more concentration in borrowing than lending activity of money center banks. During the financial crisis of 2008, the reduction of interbank lending was mainly due to core banks’ reducing their numbers of active outgoing links

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File URL: https://www.ifw-members.ifw-kiel.de/publications/core-periphery-structure-in-the-overnight-money-market-evidence-from-the-e-mid-trading-platform/kwp_emid.pdf
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Paper provided by Kiel Institute for the World Economy in its series Kiel Working Papers with number 1759.

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Length: 60 pages
Date of creation: Mar 2012
Date of revision:
Handle: RePEc:kie:kieliw:1759
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  1. Freixas, Xavier & Parigi, Bruno & Rochet, Jean-Charles, 1999. "Systemic Risk, Interbank Relations and Liquidity Provision by the Central Bank," CEPR Discussion Papers 2325, C.E.P.R. Discussion Papers.
  2. Bech, Morten L. & Atalay, Enghin, 2008. "The topology of the federal funds market," Working Paper Series 0986, European Central Bank.
  3. G. De Masi & G. Iori & G. Caldarelli, 2006. "A fitness model for the Italian Interbank Money Market," Papers physics/0610108, arXiv.org.
  4. Ana Salomé García Muñiz & Antonio Morillas Raya & Carmen Ramos Carvajal, 2011. "Core periphery valued models in input‐output field: A scope from network theory," Papers in Regional Science, Wiley Blackwell, vol. 90(1), pages 111-121, 03.
  5. Mistrulli, Paolo Emilio, 2011. "Assessing financial contagion in the interbank market: Maximum entropy versus observed interbank lending patterns," Journal of Banking & Finance, Elsevier, vol. 35(5), pages 1114-1127, May.
  6. Kimmo Soramaki & Morten L. Bech & Jeffrey Arnold & Robert J. Glass & Walter Beyeler, 2006. "The topology of interbank payment flows," Staff Reports 243, Federal Reserve Bank of New York.
  7. George Sheldon & Martin Maurer, 1998. "Interbank Lending and Systemic Risk: An Empirical Analysis for Switzerland," Swiss Journal of Economics and Statistics (SJES), Swiss Society of Economics and Statistics (SSES), vol. 134(IV), pages 685-704, December.
  8. Cocco, João F. & Gomes, Francisco J. & Martins, Nuno C., 2009. "Lending relationships in the interbank market," Journal of Financial Intermediation, Elsevier, vol. 18(1), pages 24-48, January.
  9. Sheri Markose & Simone Giansante & Mateusz Gatkowski & Ali Rais Shaghaghi, 2010. "Too Interconnected To Fail: Financial Contagion and Systemic Risk In Network Model of CDS and Other Credit Enhancement Obligations of US Banks," Working Papers 033, COMISEF.
  10. De Bandt, Olivier & Hartmann, Philipp, 2000. "Systemic risk: A survey," Working Paper Series 0035, European Central Bank.
  11. Trichet, J.C., 2011. "Intellectual challenges to financial stability analysis in the era of macroprudential oversight," Financial Stability Review, Banque de France, issue 15, pages 139-149, February.
  12. Iori, Giulia & De Masi, Giulia & Precup, Ovidiu Vasile & Gabbi, Giampaolo & Caldarelli, Guido, 2008. "A network analysis of the Italian overnight money market," Journal of Economic Dynamics and Control, Elsevier, vol. 32(1), pages 259-278, January.
  13. Michael Boss & Helmut Elsinger & Martin Summer & Stefan Thurner, 2004. "Network topology of the interbank market," Quantitative Finance, Taylor & Francis Journals, vol. 4(6), pages 677-684.
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