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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The Effects of Shared ATM Networks on the Efficiency of Turkish Banks
H. Evren Damar
Applied Economics,
No. 6,
2006
Abstract
This study investigates whether forming shared ATM networks has yielded positive benefits for banks in Turkey by increasing their productive efficiency. Using a Data Envelopment Analysis (DEA) approach, pure technical and scale efficiency scores of Turkish banks are estimated and analysed for the period 2000–2003. The results suggest that although it is possible to realize positive effects through ATM sharing arrangements, there are multiple factors that determine which banks realize such benefits. The geographical distribution of shared ATMs between urban and rural markets and the level of competition between banks within urban areas are shown to be important determinants of differences in bank efficiency. This discrepancy between the gains associated with ATM sharing may have important implications concerning the adoption and sharing of new technology by banks in developing countries.
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Excess Volatility in European Equity Style Indices - New Evidence
Marian Berneburg
IWH Discussion Papers,
No. 16,
2006
Abstract
Are financial markets efficient? One proposition that seems to contradict this is Shiller’s finding of excess volatility in asset prices and its resulting rejection of the discounted cash flow model. This paper replicates Shiller’s approach for a different data set and extends his analysis by testing for a long-run relationship by means of a cointegration analysis. Contrary to previous studies, monthly data for an integrated European stock market is being used, with special attention to equity style investment strategies. On the basis of this analysis’ results, Shiller’s findings seem questionable. While a long-run relationship between prices and dividends can be observed for all equity styles, a certain degree, but to a much smaller extent than in Shiller’s approach, of excess volatility cannot be rejected. But it seems that a further relaxation of Shiller’s assumptions would completely eliminate the finding of an overly strong reaction of prices to changes in dividends. Two interesting side results are, that all three investment styles seem to have equal performance when adjusting for risk, which by itself is an indication for efficiency and that market participants seem to use current dividend payments from one company as an indication for future dividend payments by other firms. Overall the results of this paper lead to the conclusion that efficiency cannot be rejected for an integrated European equity market.
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Progressivity and flexibility in developing an effective competition regime: using experiences of Poland, Ukraine and South Africa for developing countries. Forschungsbericht innerhalb des EU-Projektes: Competition Policy Foundations for Trade Reform, Regulatory Reform, and Sustainable Development, 2005
Franz Kronthaler, Johannes Stephan
Einzelveröffentlichungen,
No. 5,
2005
Abstract
The paper discusses the role of the concept of special and differential treatment in the framework of regional trade agreements for the development of a competition regime. After a discussion of the main characteristics and possible shortfalls of those concepts, three case countries are assessed in terms of their experience with progressivity, flexibility, and technical and financial assistance: Poland was led to align its competition laws to match the model of the EU. The Ukraine opted voluntarily for the European model, this despite its intense integration mainly with Russia. South Africa, a developing country that emerged from a highly segregated social fabric and an economy dominated by large conglomerates with concentrated ownership. All three countries enacted (or comprehensively reformed) their competition laws in an attempt to face the challenges of economic integration and catch up development on the one hand and particular social problems on the other. Hence, their experience may be pivotal for a variety of different developing countries who are in negotiations to include competition issues in regional trade agreements. The results suggest that the design of such competition issues have to reflect country-particularities to achieve an efficient competition regime.
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Developments in efficiency and productivity research – a report about the first Halle Efficiency and Productivity Analysis Workshop
Christian Growitsch
Wirtschaft im Wandel,
No. 7,
2006
Abstract
Produktivitäts- und Effizienzanalysen gewinnen – vor allem unter dem Stichwort benchmarking – in akademischer Forschung, unternehmerischer Praxis und nicht zuletzt aktueller Wirtschaftspolitik zunehmend an Einfluß. So bildet beispielsweise der Effizienzvergleich deutscher Energieversorgungsunternehmen im jüngst vorgestellten Entwurf zur Anreizregulierung der Bundesnetzagentur ein zentrales Element der nationalen Energieregulierung. Aber auch in anderen Disziplinen der Wirtschaftswissenschaften haben diese Analysen Einzug gehalten. Das IWH hat daher gemeinsam mit dem Institut für Agrarentwicklung in Mittel- und Osteuropa (IAMO) einen Workshop zu den Themen Effizienz- und Produktivitätsanalysen, den “1st Halle Efficiency and Productivity Analysis Workshop – HEPAW” veranstaltet. Ziel des Workshops war die Diskussion aktueller theoretischer und empirischer Forschungsergebnisse der Produktivitäts- und Effizienzmessung aus den Disziplinen Volkswirtschaftslehre, Agrarökonomik, Betriebswirtschaftslehre, Operations Research und verwandten Gebiete.
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Quality of Service, Efficiency, and Scale in Network Industries: An Analysis of European Electricity Distribution. EPRG Working Paper 05/04
Christian Growitsch, Tooraj Jamasb, Michael Pollitt
Externe Publikationen,
2005
Abstract
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‘Ich-AG’, bridge money and foundation allowance – more efficient promotion or simply budget recapitalization
Herbert S. Buscher
Wirtschaft im Wandel,
No. 6,
2006
Abstract
Die bislang bestehenden Förderkonzepte zur Gründung einer selbständigen Existenz aus der Arbeitslosigkeit – das Überbrückungsgeld und der Existenzgründungszuschuß – sollen zum 1. August 2006 zu einem einheitlichen Förderkonzept „Gründungszuschuß“ zusammengefaßt werden. Neben einer verbesserten Transparenz in den Förderinstrumenten erwartet die Regierung hiervon eine zielgerichtetere Förderung mit einer höheren Erfolgswahrscheinlichkeit und nicht unerhebliche Einsparungen bei den Fördermitteln. Der Beitrag überprüft auf der Grundlage der bisher veröffentlichten Informationen über das neue Förderkonzept, ob mit den erwarteten Einsparungen zu rechnen ist und welche beschäftigungspolitischen Signale hiervon ausgehen können. Die Ergebnisse einer Überschlagsrechnung zeigen, daß es voraussichtlich nicht zu den erhofften Einsparungen kommen wird, wenn nicht die Zahl der geförderten Personen deutlich abgesenkt wird. Als eindeutige „Gewinner“ der Neuregelung gelten die Empfänger von Überbrückungsgeld; für die vorherigen Ich-AGs ergeben sich keine nennenswerten Einspareffekte pro geförderte Person. Somit stellt sich die Frage, ob dieser Effekt aus arbeitsmarktpolitischen Überlegungen heraus gewünscht ist.
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Progressivity and Flexibility in Developing an Effective Competition Regime: Using Experiences of Poland, Ukraine, and South Africa for developing countries
Franz Kronthaler, Johannes Stephan
IWH Discussion Papers,
No. 6,
2006
Abstract
The paper discusses the role of the concept of special and differential treatment in the framework of regional trade agreements for the development of a competition regime. After a discussion of the main characteristics and possible shortfalls of those concepts, three case countries are assessed in terms of their experience with progressivity, flexibility, and technical and financial assistance: Poland was led to align its competition laws to match the model of the EU. The Ukraine opted voluntarily for the European model, this despite its intense integration mainly with Russia. South Africa, a developing country that emerged from a highly segregated social fabric and an economy dominated by large conglomerates with concentrated ownership. All three countries enacted (or comprehensively reformed) their competition laws in an attempt to face the challenges of economic integration and catch up development on the one hand and particular social problems on the other. Hence, their experience may be pivotal for a variety of different developing countries who are in negotiations to include competition issues in regional trade agreements. The results suggest that the design of such competition issues have to reflect country-particularities to achieve an efficient competition regime.
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Economies of Scope in European Railways: An Efficiency Analysis
Christian Growitsch, Heike Wetzel
IWH Discussion Papers,
No. 5,
2006
Abstract
In the course of railway reforms in the end of the last century, national European governments, as well the EU Commission, decided to open markets and to separate railway networks from train operations. Vertically integrated railway companies – companies owning a network and providing transport services – argue that such a separation of infrastructure and operations would diminish the advantages of vertical integration and would therefore not be suitable to raise economic welfare. In this paper, we conduct a pan-European analysis to investigate the performance of European railways with a particular focus on economies of vertical integration. We test the hypothesis that integrated railways realise economies of joint production and, thus, produce railway services on a higher level of efficiency. To determine whether joint or separate production is more efficient we apply a Data Envelopment Analysis super-efficiency bootstrapping model which relates the efficiency for integrated production to a virtual reference set consisting of the separated production technology. Our findings are that in a majority of European Railway companies exist economies of scope.
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The Magnitude of Distortions when Measuring Bank Efficiency with Misspecified Input Prices
Michael Koetter
Competition and Profitability in European Financial Services: Strategic, Systemic and Policy Issues,
2006
Abstract
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