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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Inefficient structures in the German municipal economy? The example of East German drinking water supply
Peter Haug
Wirtschaft im Wandel,
No. 2,
2006
Abstract
Die kleinteilig strukturierte deutsche Wasserwirtschaft wird von Ökonomen gerne als Beispiel für erhebliche Effizienzsteigerungspotentiale durch Unternehmenskonzentration angesehen, was sich beispielsweise mit der Ausnutzung von Größenvorteilen (economies of scale) und folglich einer kostengünstigeren Versorgung der Bevölkerung rechtfertigen lasse. Demgegenüber stehen aber die Ergebnisse etlicher empirischer Untersuchungen im Ausland, deren Befunde keine eindeutigen Rückschlüsse auf das Vorhandensein von Größenvorteilen in der öffentlichen Wasserversorgung zulassen. Eine aktuelle Untersuchung des IWH für die ostdeutsche Wasserwirtschaft liefert nun Ergebnisse einer Effizienzanalyse für deutsche Wasserversorger. Zu diesem Zweck wurde eine Data-Envelopment- Analyse (DEA) durchgeführt, wobei hier das Hauptaugenmerk auf der Abhängigkeit der sog. Skaleneffizienz von der Unternehmensgröße lag. Zur Absicherung der Ergebnisse wurden außerdem die Parameter einer aggregierten Produktionsfunktion der Wasserversorger mittels Regressionsanalyse geschätzt und daraus Rückschlüsse auf die Skalenelastizität gezogen. Die Ergebnisse der Data Envelopment Analyse legen nahe, daß nur sehr kleine Wasserversorger (jährliche Wasserabgabe < 0,5 Mio. m3) mit Effizienzgewinnen durch Unternehmenszusammenschlüsse oder andere Formen der Ausweitung der Wasserabgabemenge rechnen können. Die Schätzergebnisse der aggregierten Produktionsfunktion bestätigten die Hypothese vom Vorliegen von signifikanten Größenvorteilen in der ostdeutschen Wasserversorgung ebenfalls nicht. Unter dem Gesichtspunkt einer möglichst kostengünstigen Versorgung der Bevölkerung durch Nutzung potentieller Größenvorteile kann zumindest auf der Basis dieser Ergebnisse und in Bezug auf die Trinkwasserversorgung nur eine flexiblere Handhabung, nicht jedoch eine Aufhebung des Örtlichkeitsprinzips der kommunalen Wirtschaftstätigkeit befürwortet werden.
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Factors accounting for the enactment of a competition law – an empirical analysis
Franz Kronthaler, Johannes Stephan
One-off Publications,
No. 6,
2005
Abstract
The paper is concerned with the factors that account for decisions to enact a national competition law. In a first step, the paper updates and enlarges the existing data bases of countries that have enacted a competition law. The paper then identifies and discusses possible factors that influence the decision to enact a competition law. In a third step, the method of panel-data logit analysis is employed to test a set of hypothesis pertaining to the factors across the time dimension and across countries. The results of this analysis are interpreted in terms of significance and in terms of the sign of their influence on the probability of a country to enact. Given generality of the analysis, the results can shed light on the probability of individual countries, and in particular developing countries, to actually take the step of enactment.
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Eastern Germany in the process of catching-up: the role of foreign and Western German investors in technological renewal
Jutta Günther, Oliver Gebhardt
Eastern European Economics,
No. 3,
2005
Abstract
Foreign direct investment as a means to support system transformation and the ongoing process of catching-up development has caught researcher’s attention for a number of Central and Eastern European countries. Not much research, however, has been carried out for East Germany in this respect although FDI plays an important role in East Germany too. Descriptive analysis by the use of unique survey data shows that foreign and West German affiliates perform much better with respect to technological capability and labor productivity than domestic companies in East Germany. The results of the regression analysis, however, show that it is not the status of ownership as such that forms a significant determinant of innovativeness in East Germany but rather general firms specific characteristics attached to it such as firm size, export-intensity, technical state of the equipment, and R&D activities. Due to the fact that foreign and West German affiliates perform better with respect to exactly all of these characteristics, they can be considered as a means to support the process of technological renewal and economic development.
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Cross-border Banking and Transmission Mechanisms in Europe: Evidence from German Data
Claudia M. Buch
Applied Financial Economics,
No. 16,
2004
Abstract
International activities of commercial banks play a potential role for the transmission of shocks across countries. This paper presents stylized facts of the integration of European banking markets and analyses the potential of banks to transmit shocks across countries. Although the openness of banking systems has increased, bilateral financial linkages among EU countries are relatively small. The exceptions are claims of German banks on a number of smaller countries. These data are used for an analysis of the determinants of cross-border lending patterns.
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The effects of demographic changes on the level and structure of private consumption - a forecast for Germany until 2050 -
Harald Lehmann
IWH Discussion Papers,
No. 195,
2004
Abstract
This thesis analyzes the impact of different demografic scenarios on level and composition of private consumption in Germany. The analysis is based on the current household budget survey (Einkommens- und Verbrauchsstichprobe 1998) whose datas are adapted to the concepts of national accounting. Therefore households have to be defined by demografic aspects to investigate their consumption behavior. In the next step this will be used to forecast the effects of an aging population on private consumption by utilize a shift share analysis. The results lay open that the demografic impact is minor compared to economic factors influencing the composition of private consumption. This holds also in regard to the development of the absolute level of private consumption.
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Technological capability of foreign and West German investors in East Germany
Jutta Günther
IWH Discussion Papers,
No. 189,
2004
Abstract
Foreign direct investment (FDI) plays an important role for countries or regions in the process of economic catching-up since it is assumed – among other things – that FDI brings in new production technology and knowledge. This paper gives an overview about the development of FDI in East Germany based on official data provided by the Federal Bank of Germany. The investigation also includes a comparison of FDI in East Germany to Central East European countries. But the main focus of the paper is an analysis of the technological capability comparing majority foreign and West German owned firms to majority East German owned firms. It shows that foreign and West German subsidiaries in East Germany are indeed characterized by superior technological capability with respect to all indicators looked at (product innovation, research & development, organizational changes etc.).
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Firm-Specific Determinants of Productivity Gaps between East and West German Industrial Branches
Johannes Stephan, Karin Szalai
IWH Discussion Papers,
No. 183,
2003
Abstract
Industrial productivity levels of formerly socialist economies in Central East Europe (including East Germany) are considerably lower than in the more mature Western economies. This research aims at assessing the reasons for lower productivities at the firm level: what are the firm-specific determinants of productivity gaps. To assess this, we have conducted an extensive field study and focussed on a selection of two important manufacturing industries, namely machinery manufacturers and furniture manufacturers, and on the construction industry. Using the data generated in field work, we test a set of determinant-candidates which were derived from theory and prior research in that topic. Our analysis uses the simplest version of the matched-pair approach, in which first hypothesis about relevant productivity level-determinants are tested. In a second step, positively tested hypothesis are further assessed in terms of whether they also constitute firm-specific determinants of the apparent gaps between the firms in our Eastern and such in our Western panels. Our results suggest that the quality of human capital plays an important role in all three industrial branches assessed. Amongst manufacturing firms, networking activities and the use of modern technologies for communication are important reasons for the lower levels of labour productivity in the East. The intensity of long-term strategic planning on behalf of the management turned out to be relevant only for machinery manufacturers. Product and process innovations unexpectedly exhibit an ambiguous picture, as did the extent of specialisation on a small number of products in the firms’ portfolio and the intensity of competition.
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Municipal companies in Germany: turnover, employment, fields of operation
Peter Haug
Wirtschaft im Wandel,
No. 13,
2003
Abstract
Despite the ongoing political and scientific discussion about justification and extent of municipal economic activities, neither official statistics nor surveys of associations or research institutes provide valid data concerning the importance of local public enterprises. The IWH has carried out an analysis of different statistical sources which tries to fill the gap for municipal enterprises and yields the following results: Turnover- and employment shares of (big) companies with municipal shareholding are rather small in Germany. Nevertheless, such enterprises dominate within certain branches (e.g. public utilities) and their importance for the regional economy is particularly in Eastern Germany above-average.
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Unit labor costs and competitiveness - a micro econometric analysis for East Germany
Harald Lehmann
IWH Discussion Papers,
No. 180,
2003
Abstract
The paper stresses the value of unit labour costs as an indicator of competitiveness. It is assumed that there are different advantages by using microeconomic data which additionally allow the use of panelregressive methods. The findings for East German enterprises in the manufacturing industry (1998 to 2000) are that unit labour cost are useful for explaining the profit rate. This indicates that East German firms are facing in-price competition which depends clearly of labour costs. But unit labour costs do not explain the success on supraregional markets which are marked by non-in-price competition.
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