Do Banks Benefit from Internationalization? Revisiting the Market Power–Risk Nexus
Claudia M. Buch, C. T. Koch, Michael Koetter
Review of Finance,
Nr. 4,
2013
Abstract
We analyze the impact of bank internationalization on domestic market power (Lerner index) and risk for German banks. Risk is measured by the official declaration of regulatory authorities that a bank is distressed. We distinguish the volume of foreign assets, the number of foreign countries, and different modes of foreign entry. Our analysis has three main results. First, higher market power is associated with lower risk. Second, holding assets in many countries reduce market power at home, but banks with a higher share of foreign assets exhibit higher market power. Third, bank internationalization is only weakly related to bank risk.
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Macroeconomic Factors and Micro-Level Bank Risk
Claudia M. Buch
Bundesbank Discussion Paper 20/2010,
2010
Abstract
The interplay between banks and the macroeconomy is of key importance for financial and economic stability. We analyze this link using a factor-augmented vector autoregressive model (FAVAR) which extends a standard VAR for the U.S. macroeconomy. The model includes GDP growth, inflation, the Federal Funds rate, house price inflation, and a set of factors summarizing conditions in the banking sector. We use data of more than 1,500 commercial banks from the U.S. call reports to address the following questions. How are macroeconomic shocks transmitted to bank risk and other banking variables? What are the sources of bank heterogeneity, and what explains differences in individual banks’ responses to macroeconomic shocks? Our paper has two main findings: (i) Average bank risk declines, and average bank lending increases following expansionary shocks. (ii) The heterogeneity of banks is characterized by idiosyncratic shocks and the asymmetric transmission of common shocks. Risk of about 1/3 of all banks rises in response to a monetary loosening. The lending response of small, illiquid, and domestic banks is relatively large, and risk of banks with a low degree of capitalization and a high exposure to real estate loans decreases relatively strongly after expansionary monetary policy shocks. Also, lending of larger banks increases less while risk of riskier and domestic banks reacts more in response to house price shocks.
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Stellungnahme anlässlich der öffentlichen Anhörung des Finanzausschusses des Deutschen Bundestages am 3. Juni 2013 zum „Entwurf eines Gesetzes zum Vorschlag für eine Verordnung des Rates zur Übertragung besonderer Aufgaben im Zusammenhang mit der Aufsicht über Kreditinstitute für die Europäische Zentralbank“ (Drucksache 17/13470)
Claudia M. Buch, T. Körner, Benjamin Weigert
IWH Online,
Nr. 5,
2013
Abstract
Durch die schwere Banken- und Finanzkrise der vergangenen Jahre ist die Notwendigkeit einer besseren Regulierung der Banken und einer besseren Aufsicht über die Märkte offenkundig geworden. Hierzu liegt eine Reihe von Vorschlägen zur Änderungen der Regulierung auf dem Tisch bzw. sind bereits umgesetzt worden. Mit der „Bankenunion“ sollen zentrale Kompetenzen über die Aufsicht von Banken auf die europäische Ebene gezogen werden. Damit bedeutet die Bankenunion einen Schritt weg vom Prinzip des Binnenmarktes, in dem die Aufsicht über die Banken in nationaler Verantwortung liegt.
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Makroökonomische Faktoren und mikroökonomische Risiken von Banken
Claudia M. Buch, S. Eickmeier, Esteban Prieto
Ökonomenstimme,
2010
Abstract
Die jüngste Finanz- und Wirtschaftskrise hat gezeigt, dass Entwicklungen im Bankensektor und makroökonomische Entwicklungen oftmals sehr eng miteinander verwoben sind. Banken reagieren auf eine expansive Geldpolitik, in dem sie ihre Kreditvergabe ausweiten und dabei unter Umständen höhere Risiken eingehen; umgekehrt reagiert die Geldpolitik auf Liquiditätsengpässe im Bankensektor, in dem sie zusätzliche Liquidität bereitstellt. Diese und andere Anpassungsmuster spielen sich aber nicht nur auf aggregierter Ebene ab; vielmehr liegen ihnen eine Vielzahl von zum Teil sehr unterschiedlichen Anpassungsmustern auf der Ebene der einzelnen Bank zu Grunde. Banken unterscheiden sich beispielsweise im Grad ihrer Abhängigkeit der Refinanzierung über den Interbankenmarkt, sie sind in ihrem Geschäft Zinsänderungsrisiken in unterschiedlichem Ausmaß aufgesetzt, und sie sind unterschiedlich stark im Ausland engagiert und damit von makroökonomischen Entwicklungen im Inland abhängig.
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Does It Pay to Have Friends? Social Ties and Executive Appointments in Banking
Allen N. Berger, Thomas Kick, Michael Koetter, Klaus Schaeck
Journal of Banking and Finance,
Nr. 6,
2013
Abstract
We exploit a unique sample to analyze how homophily (affinity for similar others) and social ties affect career outcomes in banking. We test if these factors increase the probability that the appointee to an executive board is an outsider without previous employment at the bank compared to being an insider. Homophily based on age and gender increase the chances of the outsider appointments. Similar educational backgrounds, in contrast, reduce the chance that the appointee is an outsider. Greater social ties also increase the probability of an outside appointment. Results from a duration model show that larger age differences shorten tenure significantly, whereas gender similarities barely affect tenure. Differences in educational backgrounds affect tenure differently across the banking sectors. Maintaining more contacts to the executive board reduces tenure. We also find weak evidence that social ties are associated with reduced profitability, consistent with cronyism in banking.
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Hidden Gems and Borrowers with Dirty Little Secrets: Investment in Soft Information, Borrower Self-Selection and Competition
Reint E. Gropp, C. Gruendl, Andre Guettler
Abstract
This paper empirically examines the role of soft information in the competitive interaction between relationship and transaction banks. Soft information can be interpreted as a private signal about the quality of a firm that is observable to a relationship bank, but not to a transaction bank. We show that borrowers self-select to relationship banks depending on whether their privately observed soft information is positive or negative. Competition affects the investment in learning the private signal from firms by relationship banks and transaction banks asymmetrically. Relationship banks invest more; transaction banks invest less in soft information, exacerbating the selection effect. Finally, we show that firms where soft information was important in the lending decision were no more likely to default compared to firms where only financial information was used.
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Effects of Specification Choices on Efficiency in DEA and SFA
Michael Koetter, Aljar Meesters
Efficiency and Productivity Growth: Modelling in the Financial Services Industry,
2013
Abstract
This chapter assesses the sensitivity of bank cost-efficiency scores obtained with stochastic frontier analysis and data envelopment analysis. We compare CE scores of either type for a large cross-country sample of EU banks from 1996 until 2010. The results show that CE measures differ considerably depending on specification choices across parametric and nonparametric methods. The chapter documents the reasons for these differences in terms of theoretical, sample, and further specification choices.
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Who Invests in Home Equity to Exempt Wealth from Bankruptcy?
S. Corradin, Reint E. Gropp, H. Huizinga, Luc Laeven
Abstract
Homestead exemptions to personal bankruptcy allow households to retain their home equity up to a limit determined at the state level. Households that may experience bankruptcy thus have an incentive to bias their portfolios towards home equity. Using US household data for the period 1996 to 2006, we find that household demand for real estate is relatively high if the marginal investment in home equity is covered by the exemption. The home equity bias is more pronounced for younger households that face more financial uncertainty and therefore have a higher ex ante probability of bankruptcy.
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Sovereign Credit Risk Co-movements in the Eurozone: Simple Interdependence or Contagion?
Manuel Buchholz, Lena Tonzer
UniCredit & Universities Foundation, Working Paper Series No. 47,
Nr. 47,
2013
publiziert in: International Finance
Abstract
We investigate credit risk co-movements and contagion in sovereign debt markets of 17 industrialized countries for the period 2008-2012. We use dynamic conditional correlations of sovereign CDS spreads to detect contagion. This approach allows separating the channels through which contagion occurs from the determinants of simple interdependence. The results show that, first, sovereign credit risk comoves considerably, in particular among eurozone countries and during the sovereign debt crisis. Second, contagion cannot be attributed to one moment in time but varies across time and countries. Third, similarities in economic fundamentals, cross-country linkages in banking, and common market sentiment constitute the main channels of contagion.
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Big Banks and Macroeconomic Outcomes: Theory and Cross-Country Evidence of Granularity
Franziska Bremus, Claudia M. Buch, K. Russ, Monika Schnitzer
NBER Working Paper No. 19093,
2013
Abstract
Does the mere presence of big banks affect macroeconomic outcomes? In this paper, we develop a theory of granularity (Gabaix, 2011) for the banking sector, introducing Bertrand competition and heterogeneous banks charging variable markups. Using this framework, we show conditions under which idiosyncratic shocks to bank lending can generate aggregate fluctuations in the credit supply when the banking sector is highly concentrated. We empirically assess the relevance of these granular effects in banking using a linked micro-macro dataset of more than 80 countries for the years 1995-2009. The banking sector for many countries is indeed granular, as the right tail of the bank size distribution follows a power law. We then demonstrate granular effects in the banking sector on macroeconomic outcomes. The presence of big banks measured by high market concentration is associated with a positive and significant relationship between bank-level credit growth and aggregate growth of credit or gross domestic product.
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