The Stability of Bank Efficiency Rankings when Risk Preferences and Objectives are Different
Michael Koetter
The 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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International Banking and the Allocation of Risk
Claudia M. Buch
IAW Discussion Paper No. 32,
2007
Abstract
Macroeconomic risks could magnify individual bank risk. Mitigating the influence of economy-wide risks on banks could therefore be very important to maintain a smooth-running banking system. In this paper, we explore the extent to which macroeconomic risks affect banks. We use a bank-level dataset on over 2,000 banks worldwide for the years 1995-2002 to study the effect of macroeconomic volatility, the openness of the banking system, and banking regulations on bank risks. Our measure of bank risk is the volatility of banks' pre-tax profits. We find that macroeconomic volatility increases banks' profit volatility and that international openness of the banking system lowers bank risk. We find no impact of banking regulation on profit volatility. Our findings suggest that if policymakers want to lower bank risk, they should seek to lower macroeconomic volatility as well as increase openness in the banking system.
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The Role of Credit Ratings in Banking Regulations. Credit Ratings Are Insufficiently Anticipating the Risk for Currency Crises.
Tobias Knedlik, Johannes Ströbel
Wirtschaft im Wandel,
No. 10,
2007
Abstract
This contribution analyses whether the behaviour 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 micro-mismatches 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 for potential future crises.
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Banking Regulation: Minimum Capital Requirements of Basel II Intensify Transmission from Currency Crises to Banking Crises
Tobias Knedlik, Johannes Ströbel
Wirtschaft im Wandel,
No. 8,
2007
Abstract
Emerging market currency crises are often followed by banking crises. One reason for the transmission is the increased value of foreign debt measured in local currency. Equity capital is often insufficient to ensure liquidity. This problem is addressed by Basel II, in particular by its minimum capital requirements. In difference to the current regulation (Basel I), Basel II employs a differentiated risk weighing on base of credit ratings. This contribution calculates the hypothetic effects of the new regulation on minimum capital requirements for the example of the South Korea currency and banking crises of 1997. The results are compared to current regulation. It can be shown that minimum capital requirements in the case of Basel II would have been lower than in the case of Basel I. Additionally, minimum capital requirements would have increased dramatically. The transmission from currency to banking crises would not have been prevented, but would have been accelerated. Thereby, minimum capital requirements under Basel I have been relatively low because of South Korea’s OECD membership. It can therefore be concluded that in other emerging market economies, which are not OECD members, the ratio of minimum capital requirements of Basel II to the minimum capital requirements of Basel I prior the crises would have been even lower. Therefore, the new instrument of banking regulation would have intensified the transmission from currency to banking crises.
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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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asset price inflation
Tobias Knedlik, A. Knorr
Systeme monetärer Steuerung - Analyse und Vergleich geldpolitischer Strategien - Schriften zu Ordnungsfragen der Wirtschaft, Band 86,
No. 86,
2007
Abstract
Most of the influential central banks managed to bring inflation down to a sustainable path in the last two decades. However, during the same time asset prices increased significantly. From the perspective of economic policy, this development might constitute a problem in the case that price increases are not due to changes in fundamentals but are of a speculative nature. During the current past the number of asset price bubbles increased. The aim of this contribution is to analyze policy options with regard to asset price inflation. We identify the relevant markets, discuss their specific price mechanisms, discuss transmission mechanisms, and the usefulness of monetary policy and alternative instruments to deal with asset price inflation. We show that, once asset price inflation is present, monetary policy can do little to stop processes of speculative bubbles. It is the more important that that alternatives are considered. These include the analysis of monetary conditions, a straight forward communication, better regulation, and a strengthening of institutions that allow for diversifying risks to handle the necessary structural changes with lowest possible economic costs.
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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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Die Lage der Weltwirtschaft und der deutschen Wirtschaft im Frühjahr 2007
Wirtschaft im Wandel,
1. Sonderausgabe
2007
Abstract
In spring 2007, the global economy remains robust. While growth rates have declined slightly from last year, as business activity in the US has slowed, they continue to reflect an upswing, which by now has held on for a notably long time. Especially the developing and emerging countries have been raising output very fast, due in part to their increasing role in the international division of labour. In the industrialised economies, on the other hand, the current recovery has not been remarkably strong. So far the slowdown in the US economy has not spilled over to other regions and the Euro Area as well as Japan continue to expand at a high pace. Here expansive monetary policy provided a notable support. Buoyant financial markets stimulated the world economy additionally, even though market volatility has increased since the end of February. The US central bank’s current concern with inflationary risks keeps it from loosening its slightly restrictive monetary policy. It will be the second half of the year – when price pressures have eased – until the Fed makes its first rate cut. The ECB, on the other hand, has been preparing financial markets for a further increase in interest rates by summer. In 2007 and 2008 the growth disparities in the industrialised countries will diminish. On one hand, the upswing in the Euro Area will start to moderate, as fiscal policy hampers business activity and monetary policy will not stimulate anymore. On the other hand, the US economy will slowly gain pace from summer onwards; the emerging markets will continue to develop in a highly dynamic fashion. World-GDP in this and next year will likely rise by about 3 ¼ % in 2007, which is still faster than in the average of the last ten years. World trade will rise by 7 ½ % in the coming two years. An oil price of 65 US-Dollar and an exchange rate between the Euro and the US-Dollar of 1.32 were assumed for both years 2007 and 2008. The real estate market in the USA continues to be a risk for...
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Bank Lending, Bank Capital Regulation and Efficiency of Corporate Foreign Investment
Diemo Dietrich, Achim Hauck
IWH Discussion Papers,
No. 4,
2007
Abstract
In this paper we study interdependencies between corporate foreign investment and the capital structure of banks. By committing to invest predominantly at home, firms can reduce the credit default risk of their lending banks. Therefore, banks can refinance loans to a larger extent through deposits thereby reducing firms’ effective financing costs. Firms thus have an incentive to allocate resources inefficiently as they then save on financing costs. We argue that imposing minimum capital adequacy for banks can eliminate this incentive by putting a lower bound on financing costs. However, the Basel II framework is shown to miss this potential.
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The IWH signals approach: the present potential for a financial crisis in selected Central and East European countries and Turkey
Hubert Gabrisch, Simone Lösel
Wirtschaft im Wandel,
No. 8,
2006
Abstract
The steep increase of oil prices, general threats rooting from Iran’s nuclear program, and doubts about the future policy of important central banks recently caused more uncertainties of investors on international financial markets. This explains the higher volatility and the fall of indices on stock markets including those of some Central and East European countries. International investors could respond with adjustments of their portfolio and trigger off a financial crisis. On this background, the article studies the potential for a financial crises in the region mentioned. The analytical tool is the IWH signals approach. The study concludes that the risk of the outbreak of a financial crisis within the next 18 months is rather unrealistic in most countries. A stable economic policy, high real growth rates, a financial system already robust compared to earlier times of transition, and appropriate exchange rate arrangements protect the countries against speculative attacks and portfolio adjustments. When the composite indicator shows deterioration like in the Baltic countries, it turned out to be negligible. For the Slovak Republic and Slovenia, the composite indicator even improved. A closer look to individual indicators reveals still some problems in the banking sectors of the Czech Republic, Poland, and Hungary, however, without out major impact on the composite indicator.
This general assessment does not apply to Romania, and, in particular, to Turkey. The composite indicator signals a significant increase of the risk potential for the next 18 months in both countries. There is a considerable need for sound policy action.
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