Network Access Charges, Vertical Integration, and Property Rights Structure
Christian Growitsch, Thomas Wein
Energy Economics,
No. 2,
2005
Abstract
After the deregulation of the German electricity markets in 1998, the German government opted for a regulatory regime called negotiated third party access, which would be subject to ex post control by the federal cartel office. Network access charges for new competitors are based on contractual arrangements between energy producers and industrial consumers. As the electricity networks are incontestable natural monopolies, the local and regional network operators are able to set (monopolistic) charges at their own discretion, limited only by their concerns over possible interference by the federal cartel office (Bundeskartellamt). In this paper we analyse if there is evidence for varying charging behaviour depending on a supplier`s economic independence (structure of property rights) or its level of vertical integration. For this purpose we hypothesise that incorporated and vertically integrated suppliers set different charges than independent utility companies. Multivariate estimations show a relation between network access charges and the network operator’s economic independence as well as level of vertical integration. On the low voltage level, for an estimated annual consumption of 1700 kW/h, vertically integrated firms set – as predicted by our hypothesis - significantly lower access charges than vertically separated suppliers, whereas incorporated network operators charge significantly higher charges compared to independent suppliers. There is insufficient evidence available to confirm these results for other consumptions or voltage levels.
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Are European Equity Style Indexes Mean Reverting? Testing the Validity of the Efficient Market Hypothesis
Marian Berneburg
IWH Discussion Papers,
No. 193,
2004
Abstract
The article tests for a random walk in European equity style indexes. After briefly
introducing the efficient market hypothesis, equity styles in general and the used
statistical techniques (Variance Ratio Test and modified Rescaled Range Test) it is
shown that a random walk in European equity style indexes cannot be rejected. At least in the period since the mid 70s, for which this research has been conducted, the weak form efficient market hypothesis seems to hold.
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The Contestable Markets Theory - Efficient Advice for Economic Policy
Christian Growitsch, Thomas Wein
External Publications,
2004
Abstract
During the nineties of the last century several formerly monopolistic markets (telecommunication, electricity, gas, and railway) have been deregulated in Germany based on European directives and theoretically inspired by the theory of contestable markets. The original contestable market theory implied three assumptions necessary to be satisfied to establish potential competition: Free market entry, market exit possible without any costs, and the price adjustment lag exceeding the entry lag. Our analysis shows that if the incumbent reduces its prices slowly (high adjustment lag) and the market entry can be performed quickly (low entry lag), a new competitor will be able to earn back sunk costs. Therefore it is not necessary that all three conditions be complied with for potential competition to exist. Applying this „revised“ contestable market theory to the deregulated sectors in Germany, natural monopolies can be identified in telecommunication sections local loops and local/regional connection networks, in the national electricity grid and the regional/local electricity distribution networks, in the national and regional/local gas transmission/distribution sections, and in the railroad network. These sections are not contestable due to sunk costs, expected high entry lags and a probably short price adjustment lag. They are identified as bottlenecks, which should be regulated. The function of system operators in energy and railroad are closely related to the non-contestable monopolistic networks.
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EU Eastern Enlargement and Structural Change: Specialization Patterns in Accession Countries and Economic Dynamics in the Single Market
Albrecht Kauffmann, P. J. J. Welfens, A. Jungmittag, C. Schumann
Diskussionsbeiträge des Europäischen Instituts für Internationale Wirtschaftsbeziehungen (EIIW), Bergische Universität Wuppertal, Nr. 106,
No. 106,
2003
Abstract
This paper analyses key issues of structural change and specialization patterns in the economies of an enlarged European Union. In all transition countries we observe a shift from the agricultural and industrial sector towards the service sector in terms of employment and productivity; however, in some countries a reindustrialisation drives is observed in a late transition stage. While some countries namely the Czech Republic, Hungary, Slovakia, Poland, Estonia and Slovenia, have improved their productivity especially in medium-technology-intensive industries and may advance on the technological ladder, others remain unchanged and seem to get locked in labour-intensive industrial sectors. In the context of EU-enlargement, we expect trade creation – going along with a rise of intra-industry trade – and higher FDI-activities. Countries will have to adjust along the logic of comparative advantage, however, technological upgrading and human capital formation are fields in which government can stimulate the direction of comparative advantage. According to the Gerschenkron-hypothesis the accession countries have an “advantage of backwardness. Since accession countries have a low R&D-GDP ratio in the early transition stage rising government expenditures on research and development plus higher education is crucial. We expect the EU-15 countries in general to benefit from enlargement but gains will be asymmetric across countries: economic geography matters. Austria, Germany, the Scandinavian countries, the Netherlands, Italy and France are likely to profit more than the other members of EU-15. Germany and Austria additionally play a particularly crucial role as origins of FDI. Future research should focus on the speed and the scope of structural adjustment.
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Direct investments in Central and Eastern European acceding countries: Repercussions for the German labor market?
Constanze Dey
Wirtschaft im Wandel,
No. 4,
2003
Abstract
In the light of the high unemployment in the Germany we ask whether German FDI to the CEEC is motivated mainly by cost differentials and takes the form of vertical investment which leads to an increased pressure on blue collar jobs in Germany. The analysis shows that German direct investment abroad is motivated both by reasons of market access and by cost differentials. About 60 % of all German FDI is directed toward the service sector. Here, no negative impact on the German labour market is to be expected. About 40 % of total German FDI may partly be motivated by cost advantages and lead to outsourcing. In the three most important CEEC recipient countries (Poland, Czech Republic and Hungary) about half of all FDI is directed toward the manufacturing industries (chemical industry and automobile industry in particular). This supports the hypothesis that vertical investment to these CEECs has been directed towards sectors that display cost advantages (i.e. low labour costs) which results in a decrease of the number of blue collar jobs and their respectives wages.
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Bank Concentration and Retail Interest Rates
S. Corvoisier, Reint E. Gropp
Journal of Banking and Finance,
No. 11,
2002
Abstract
The recent wave of mergers in the euro area raises the question whether the increase in concentration has offset the increase in competition in European banking through deregulation. We test this question by estimating a simple Cournot model of bank pricing. We construct country and product specific measures of bank concentration and find that for loans and demand deposits increasing concentration may have resulted in less competitive pricing by banks, whereas for savings and time deposits, the model is rejected, suggesting increases in contestability and/or efficiency in these markets. Finally, the paper discusses some implications for tests of the effect of concentration on monetary policy transmission.
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Germany: Cyclical Improvement not Until the End of the Year
Wirtschaft im Wandel,
No. 12,
2001
Abstract
During the second quarter of 2001 German overall production stagnated. Weak global development muddied the economic prospects of firms and prevented them from rising their output and their investment activities. In 2001 gross national product will only increase by 1%; the number of unemployed will be higher than expected. Nevertheless, we advise against an increase in public expenditure that aims at stimulating the economy. Anyhow, growing public deficits, caused by cyclical movements, should be accepted. In order to increase employment labour market reforms become more urgent.
In East Germany, currently even a decline in gross national product cannot be excluded. After the first period of restructuring, which has been accompanied by structural problems, cyclical movements become more important. In addition, economic stagnation burdens labour markets. Nonetheless trying to stimulate the East German economy by government spending programmes does not seem to be a viable strategy. From the cyclical point of view they are not very efficient and concerning structural problems they are no solution.
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Does East Germany need a new technology policy? – Implications from the functioning of the R&D market after the transformation
Ralf Müller
IWH Discussion Papers,
No. 145,
2001
Abstract
Technology policy is a major part of government's efforts in contributing to East Ger-many's economic recovery. However, even a decade after unification East Germany does not produce sufficient technology goods. Thus, the question is whether technology policy is either not suitable or inefficient in tackling East Germany's deficits. A special technology policy for East Germany is justified by the lack of regional networks for technology firms; without a compensating policy East Germany would continue to lag behind West Germany also with respect to incomes. Yet only a few of the policy in-struments applied so far are efficiently dealing with these deficits. Thus, a future technology policy for East Germany should – mainly by the supply of R&D-infrastructure – support implementation of these kinds of networks.
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Environmental policy under product differentiation and asymmetric costs - Does leapfrogging occur and is it worth it?
Jacqueline Rothfels
IWH Discussion Papers,
No. 124,
2000
Abstract
This paper studies the influence of environmental policies on environmental quality, domestic firms, and welfare. Point of departure is Porter’s hypothesis that unilateral environmental regulation may enhance the competitiveness of domestic firms. This hypothesis has recently received considerable support in theoretical analyses, especially if imperfectly competitive markets with strategic behavior on behalf of the agents are taken into account. Our work contributes to this literature by explicitely investigating the implications of asymmetric cost structures between a domestic and a foreign firm sector. We use a partial-equilibrium model of vertical product differentiation, where the consumption of a product causes environmental harm. Allowing for differentiated products, the domestic industry can either assume the market leader position or lag behind in terms of the environmental quality of the produced product. Assuming as a benchmark case that the domestic industry lags behind, we investigate the possibility of the government to induce leapfrogging of the domestic firm, i.e. a higher quality produced by the domestic firm after regulation than that of the competitor prior to regulation. It is shown that in the case of a cost advantage for the domestic firm in the production process the imposition of a binding minimum quality standard can serve as a tool to induce leapfrogging. In case of a cost disadvantage the same result can be achieved through an adequate subsidization of quality dependend production costs. Thus, careful regulation enables the domestic firm in both scenarios to better its competitive position against foreign competitors and to earn larger profits. Additionally, environmental quality and welfare can be enhanced.
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Labor market policy efficiency in the New Länder – An assessment of the past and approaches for future reforms -
Hilmar Schneider, Olaf Fuchs, Wolfram Kempe, Jürgen Kolb, Birgit Schultz, Annette Bergemann, Martin T. W. Rosenfeld
IWH-Sonderhefte,
No. 3,
2000
Abstract
Im Juli 1999 hat das Bundesministerium der Finanzen dem IWH den Auftrag erteilt, eine Studie unter dem Titel „Steigerung der Effizienz und Effektivität der Arbeitsmarktpolitik in den neuen Ländern“ zu erstellen. Fast zehn Jahre nach der Wiedervereinigung erschien es an der Zeit, die Rolle der Arbeitsmarktpolitik im Prozess des Wiederaufbaus einer kritischen Würdigung zu unterziehen, mögliche Schwachstellen zu lokalisieren und darauf aufbauend über künftige konzeptionelle Schwerpunktsetzungen nachzudenken.
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