Cross-border Exposures and Financial Contagion
Hans Degryse, Muhammad Ather Elahi, Maria Fabiana Penas
International Review of Finance,
No. 2,
2010
Abstract
Integrated financial markets provide opportunities for expansion and improved risk sharing, but also pose threats of contagion risk through cross-border exposures. This paper examines cross-border contagion risk over the period 1999–2006. To that purpose we use aggregate cross-border exposures of 17 countries as reported in the Bank for International Settlements Consolidated Banking Statistics. We find that a shock that affects the liabilities of one country may undermine the stability of the entire financial system. Particularly, a shock wiping out 25% (35%) of US (UK) cross-border liabilities against non-US (non-UK) banks could lead to bank contagion eroding at least 94% (45%) of the recipient countries' banking assets. We also find that since 2006 a shock to Eastern Europe, Turkey and Russia affects most countries. Our simulations also reveal that the ‘speed of propagation of contagion’ has increased in recent years resulting in a higher number of directly exposed banking systems. Finally, we find that contagion is more widespread in geographical proximities.
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Government Interventions in Banking Crises: Assessing Alternative Schemes in a Banking Model of Debt Overhang
Diemo Dietrich, Achim Hauck
Abstract
In dieser Studie werden verschiedene Politikmaßnahmen evaluiert, die ergriffen werden können, um den Rückgang des Kreditangebots im Geiner Bankenkrise aufzuhalten. Es wird ein dynamischer Ansatz entwickelt, in dem Banken aufgrund eines bestehenden Schuldenüberhangs einen Anreiz haben, das Kreditangebot zu reduzieren oder eine fragile Kapitalstruktur zu wählen. Staatliche Unterstützungsmaßnahmen, die von neuen Bankgeschäften abhängig gemacht werden, erlauben es den Banken, das Ausmaß der Unterstützung zu beeinflussen und Risiken zu externalisieren; damit targen die Maßnahmen dazu bei, dass Banken das Kreditangebot unangemessen stark ausweiten und/oder exzessive Risiken eingehen. Unterstützungsmaßnahmen ohne Bezug auf neue Bankgeschäfte führen nicht zu diesen adversen Anreizeffekten, sind aber mit höheren fiskalischen Kosten verbunden.
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Potential Effects of Basel II on the Transmission from Currency Crises to Banking Crises – The Case of South Korea
Tobias Knedlik, Johannes Ströbel
Journal of Money,
No. 13,
2010
Abstract
In this paper we evaluate potential effects of the Basel II accord on preventing the transmission from currency crises to banking crises by analyzing the South Korean crisis of 1997. We show that regulatory capital reserves under Basel II would have been lower than those under Basel I, and that therefore Basel II would have had adverse effects on the development of the crisis. Furthermore we investigate whether the behavior of rating agencies has changed since the East Asian crisis. We find no evidence that rating agencies have started to take micro-mismatches into account. Thus, we have reservations concerning the effectiveness of Basel II.
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Shocks at Large Banks and Banking Sector Distress: The Banking Granular Residual
S. Blank, Claudia M. Buch, Katja Neugebauer
Journal of Financial Stability,
No. 4,
2009
Abstract
Size matters in banking. In this paper, we explore whether shocks originating at large banks affect the probability of distress of smaller banks and thus the stability of the banking system. Our analysis proceeds in two steps. In a first step, we follow Gabaix and construct a measure of idiosyncratic shocks at large banks, the so-called Banking Granular Residual. This measure documents the importance of size effects for the German banking system. In a second step, we incorporate this measure of idiosyncratic shocks at large banks into an integrated stress-testing model for the German banking system following De Graeve et al. (2008). We find that positive shocks at large banks reduce the probability of distress of small banks.
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The Identification of Technology Regimes in Banking: Implications for the Market Power-Fragility Nexus
Michael Koetter, Tigran Poghosyan
Journal of Banking and Finance,
No. 8,
2009
Abstract
Neglecting the existence of different technologies in banking can contaminate efficiency, market power, and other performance measures. By simultaneously estimating (i) technology regimes conditional on exogenous factors, (ii) efficiency conditional on risk management, and (iii) Lerner indices of German banks, we identify three distinct technology regimes: Public & Retail, Small & Specialized, and Universal & Relationship. System estimation at the regional level reveals that greater bank market power increases bank profitability but also fosters corporate defaults. Corporate defaults, in turn, lead to higher probabilities of bank distress, which supports the market power-fragility hypothesis.
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Bank Regulation and Supervision in Bank-dominated Financial Systems: A Comparison between Japan and Germany
Diemo Dietrich, Ralf Bebenroth, Uwe Vollmer
European Journal of Law and Economics,
2009
Abstract
Diese Arbeit vergleicht die Bankenregulierung und -aufsicht in Japan und Deutschland. Diese Länder werden betrachtet, weil sie beide ein bankendominiertes Finanzsystem aufweisen und trotzdem Unterschiede in Bezug auf die Bankenstabilität aufweisen. Es wird gezeigt, dass Japan und Deutschland unterschiedliche Ansätze zur Regulierung und Aufsicht von Banken gewählt haben, und fragt, warum sie ihre Wahl so getroffen haben. Es wird argumentiert, dass Regulierung und Aufsicht in Japan weniger effizient gewesen sind und dass diese Unterschiede maßgeblich für das verschiedene Bankenverhalten war.
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Banking Integration, Bank Stability, and Regulation: Introduction to a Special Issue of the International Journal of Central Banking
Reint E. Gropp, H. Shin
International Journal of Central Banking,
No. 1,
2009
Abstract
The link between banking integration and financial stability has taken center stage in the wake of the current financial crisis. To what extent is the banking system in Europe integrated? What role has the introduction of the common currency played in this context? Are integrated banking markets more vulnerable to contagion and financial instability? Does the fragmented regulatory framework in Europe pose special problems in resolving bank failures? What policy reforms may become necessary? These questions are of considerable policy interest as evidenced by the extensive discussions surrounding the design and implementation of a new regulatory regime and by the increasing attention coming from academia.
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Monetary Policy and Financial (In)stability: An Integrated Micro–Macro Approach
Ferre De Graeve, Thomas Kick, Michael Koetter
Journal of Financial Stability,
No. 3,
2008
Abstract
Evidence on central banks’ twin objective, monetary and financial stability, is scarce. We suggest an integrated micro–macro approach with two core virtues. First, we measure financial stability directly at the bank level as the probability of distress. Second, we integrate a microeconomic hazard model for bank distress and a standard macroeconomic model. The advantage of this approach is to incorporate micro information, to allow for non-linearities and to permit general feedback effects between financial distress and the real economy. We base the analysis on German bank and macro data between 1995 and 2004. Our results confirm the existence of a trade-off between monetary and financial stability. An unexpected tightening of monetary policy increases the probability of distress. This effect disappears when neglecting microeffects and non-linearities, underlining their importance. Distress responses are largest for small cooperative banks, weak distress events, and at times when capitalization is low. An important policy implication is that the separation of financial supervision and monetary policy requires close collaboration among members in the European System of Central Banks and national bank supervisors.
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Do Weak Supervisory Systems Encourage Bank Risk-taking?
Claudia M. Buch, G. DeLong
Journal of Financial Stability,
2008
Abstract
Weak bank supervision could give banks the ability to shift risk from themselves to supervisors. We use cross-border bank mergers as a natural experiment to test changes in risk and the impact of supervision. We examine cross-border bank mergers and find that the supervisory structures of the partners’ countries influence changes in post-merger total risk. An acquirer from a country with strong supervision lowers total risk after a cross-border merger. However, total risk increases when the target bank is located in a country with relatively strong supervision. This result is consistent with strong host regulators limiting the risky activities of their local banks. Foreign-owned competitors could then engage in the risky projects, especially if the foreign banks’ supervisors are not strong. An acquirer entering a country with strong supervision appears to shift risk back to its home country. The results suggest that bank supervisors can reduce total banking risk in their countries by being strong.
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The Stability of Bank Efficiency Rankings when Risk Preferences and Objectives are Different
Michael Koetter
European Journal of Finance,
No. 2,
2008
Abstract
We analyze the stability of efficiency rankings of German universal banks between 1993 and 2004. First, we estimate traditional efficiency scores with stochastic cost and alternative profit frontier analysis. Then, we explicitly allow for different risk preferences and measure efficiency with a structural model based on utility maximization. Using the almost ideal demand system, we estimate input- and profit-demand functions to obtain proxies for expected return and risk. Efficiency is then measured in this risk-return space. Mean risk-return efficiency is somewhat higher than cost and considerably higher than profit efficiency (PE). More importantly, rank–order correlation between these measures are low or even negative. This suggests that best-practice institutes should not be identified on the basis of traditional efficiency measures alone. Apparently, low cost and/or PE may merely result from alternative yet efficiently chosen risk-return trade-offs.
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