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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Accounting for Distress in Bank Mergers
Michael Koetter, J. W. B. Bos, Frank Heid, James W. Kolari, Clemens J. M. Kool, Daniel Porath
Journal of Banking and Finance,
No. 10,
2007
Abstract
Most bank merger studies do not control for hidden bailouts, which may lead to biased results. In this study we employ a unique data set of approximately 1000 mergers to analyze the determinants of bank mergers. We use undisclosed information on banks’ regulatory intervention history to distinguish between distressed and non-distressed mergers. Among merging banks, we find that improving financial profiles lower the likelihood of distressed mergers more than the likelihood of non-distressed mergers. The likelihood to acquire a bank is also reduced but less than the probability to be acquired. Both distressed and non-distressed mergers have worse CAMEL profiles than non-merging banks. Hence, non-distressed mergers may be motivated by the desire to forestall serious future financial distress and prevent regulatory intervention.
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East German Economy: Demand Push Stronger than Structural Deficiencies
Wirtschaft im Wandel,
No. 7,
2007
Abstract
In 2006, growth of production was surprisingly strong in Eastern Germany. The structural deficiencies there would have suggested a slower pace. In particular, linkages with national and international business cycles have been underestimated. To a large part, the reason why output grew by 3 per cent did not come from Eastern Germany itself, but from the Old Länder and from abroad. In the New Länder, the strong upward swing in investment activity stimulated the economy. However, owing to a small increase in total income of private households, their purchasing power lagged behind.
The improved ability of East German firms to absorb cyclical impulses from exports and from Germany’s general investment activity proved to be a crucial factor. In particular, the endowment of workplaces with modern production facilities as well as the continued reduction in the disadvantages with respect to cost-competitiveness in the tradable goods sector were beneficial. The labour cost advantage compared to West German competitors increased further while the disadvantage compared to those from Central and Eastern Europe decreased.
Benefiting from these factors, economic activity in Eastern Germany will grow faster than in the Old Länder as long as the upswing in Germany and abroad remains strong. In 2007 and 2008, investments – especially in equipment – and exports will be the driving forces again. For exports, the strongly expanding markets in Central and Eastern Europe as well as in Russia will gain in importance. As income and employment prospects improve, private consumption will support the growth in production. Registered unemployment should decrease below the 1-million threshold.
Manufacturing will remain the primary force of the upswing; its advantages in production costs will not vanish as long as, even in presence of scarcity of skilled labour, salaries and wages do not increase more than in Western Germany. In the wake of robust economic growth, the New Länder will make further progress in catching up with respect to production and income.
Companies will regain support from the banking industry. Yet, investment capital still stems from public funding programmes to a non-negligible extent. In the medium run, access to credit will ease as a result of further improvements in the firms’ net worth position. However, dependency on internal funds remains high and exposes companies to comparatively strong cyclical risks. In an economic downturn, the structural deficiencies of the East German economy will impair economic expansion.
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The Impact of Competition on Bank Orientation
Hans Degryse, Steven Ongena
Journal of Financial Intermediation,
No. 3,
2007
Abstract
How do banks react to increased competition? Recent banking theory significantly disagrees regarding the impact of competition on bank orientation—i.e., the choice of relationship-based versus transactional banking. We empirically investigate the impact of interbank competition on bank branch orientation. We employ a unique data set containing detailed information on bank–firm relationships. We find that bank branches facing stiff local competition engage considerably more in relationship-based lending. Our results illustrate that competition and relationships are not necessarily inimical.
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Slippery Slopes of Stress: Ordered Failure Events in German Banking
Thomas Kick, Michael Koetter
Journal of Financial Stability,
No. 2,
2007
Abstract
Outright bank failures without prior indication of financial instability are very rare. In fact, banks can be regarded as troubled to varying degrees before outright closure. But failure studies usually neglect the ordinal nature of bank distress. We distinguish four different kinds of increasingly severe events on the basis of the distress database of the Deutsche Bundesbank. Only the worst distress event entails a bank to exit the market. Since the four categories of hazard functions are not proportional, we specify a generalized ordered logit model to estimate respective probabilities of distress simultaneously. We find that the likelihood of ordered distress events changes differently in response to given changes in the financial profiles of banks. Consequently, bank failure studies should account more explicitly for the different shades of distress. This allows an assessment of the relative importance of financial profile components for different degrees of bank distress.
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Interbank Exposures: An Empirical Examination of Contagion Risk in the Belgian Banking System
Hans Degryse, Grégory Nguyen
International Journal of Central Banking,
No. 2,
2007
Abstract
Robust (cross-border) interbank markets are important for the proper functioning of modern financial systems. However, a network of interbank exposures may lead to domino effects following the event of an initial bank failure. We investigate the evolution and determinants of contagion risk for the Belgian banking system over the period 1993–2002 using detailed information on aggregate interbank exposures of individual banks, large bilateral interbank exposures, and cross-border interbank exposures. The "structure" of the interbank market affects contagion risk. We find that a change from a complete structure (where all banks have symmetric links) toward a "multiplemoney-center" structure (where money centers are symmetrically linked to otherwise disconnected banks) has decreased the risk and impact of contagion. In addition, an increase in the relative importance of cross-border interbank exposures has lowered local contagion risk. However, this reduction may have been compensated by an increase in contagion risk stemming from foreign banks.
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Repercusiones de la integración y consolidación de los sectores bancarios europeos sobre la innovación y las actividades de los emprendedores
Hans Degryse, Steven Ongena, Maria Fabiana Penas
Papeles de Economía Española,
No. 110,
2006
Abstract
We investigate whether the agenda of deepening the integration of the European financial sector may hurt innovation and growth in Europe. In particular we highlight the problems financial integration may create for breakthrough innovation. Financial integration, by escalating competition and consolidation in the European banking sector, may jeopardize the funding of radical innovators. However weighing the current evidence we conclude these problems may at most be transitory.
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The role of banking portfolios in the transmission from the currency crises to banking crises - potential effects of Basel II
Tobias Knedlik, Johannes Ströbel
IWH Discussion Papers,
No. 21,
2006
Abstract
This paper evaluates the potential effects of the Basel II accord on preventing the transmission from currency crises to financial crises. By analyzing the case study of South Korea, it shows how mismatches on banks’ balance sheets were the primary cause for such a transmission, and models how Basel II would have affected those balance sheets. The paper shows that due to South Korea’s positive credit rating in the months leading up to the crisis, the regulatory capital reserves under Basel II would have been even lower than those under Basel I, and that therefore Basel II would have had adverse effects on the development of the crisis. In the second part, the article analyses whether the behavior of rating agencies has changed since their failure to predict the Asian crisis. The paper finds no robust econometric evidence that rating agencies have started to take micromismatches into account when assigning sovereign ratings. Thus, given the current approach of credit rating agencies, we have reservations concerning the effectiveness of Basel II to prevent the transmission from currency crises to banking crises, both for the case of South Korea and for potential future crises.
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Measurement Matters — Alternative Input Price Proxies for Bank Efficiency Analyses
Michael Koetter
Journal of Financial Services Research,
No. 2,
2006
Abstract
Most bank efficiency studies that use stochastic frontier analysis (SFA) employ each bank’s own implicit input price when estimating efficient frontiers. But at the same time, most studies are based on cost and/or profit models that assume perfect input markets. Traditional input price proxies therefore contain at least substantial measurement error. We suggest here two alternative input market definitions to approximate exogenous input prices. We have access to Bundesbank data, which allows us to cover virtually all German universal banks between 1993 and 2003. The use of alternative input price proxies leads to mean cost efficiency that is significantly five percentage points lower compared to traditional input prices. Mean profit efficiency is hardly affected. Across models, small cooperative banks located in large western states perform best while large banks and those located in eastern states rank lowest.
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Still Overbanked and Unprofitable? Two Decades of German Banking
Michael Koetter, Thorsten Nestmann, Stéphanie Stolz, Michael Wedow
Kredit und Kapital,
No. 4,
2006
Abstract
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