Property networks of corporations as cause of abusive behaviour – A stock market analysis based on institutional economics
Makram El-Shagi
Applied Financial Economics Letters,
No. 5,
2005
Abstract
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Enterprise networks in East Germany: Concentration on conglomerates.
Gerhard Heimpold
Wirtschaft im Wandel,
No. 4,
2005
Abstract
Mit dem Vorhandensein von Unternehmensnetzwerken wird zumeist eine hohe Wettbewerbsfähigkeit der Wirtschaft in der betreffenden Region assoziiert. Eine erstmals flächendeckend für Ostdeutschland vorgenommene Bestandsaufnahme von Unternehmensnetzwerken zeigt eine erhebliche räumliche Ungleichverteilung von Netzwerkaktivitäten zugunsten der sächsischen Agglomerationsräume und zugunsten der Hauptstadtregion. Diese räumlichen Schwerpunkte der Netzwerkbildung lassen erkennen, dass sich Netzwerke am ehesten dort herausbilden und entwickeln, wo sie günstige „natürliche“ Entwicklungsbedingungen, d. h. vor allem eine hohe Dichte von Unternehmen und Wissenschaftseinrichtungen vorfinden. Dort können zugleich besonders intensive lieferund abnehmerseitige Verflechtungen vermutet werden. Dass die höher verdichten Regionen günstige „natürliche“ Bedingungen für die Etablierung von Netzwerken darstellen, wird auch an dem Umstand deutlich, dass in diesen Räumen besonders häufig Übereinstimmungen zwischen Unternehmensnetzwerken und regionalen Branchenschwerpunkten gegeben sind. Diese Übereinstimmungen können als vorteilhaft für die Regionalentwicklung angesehen werden, weil sie Indizien für das Vorhandensein von längerfristig gegebenen tendenziell nachhaltigen Netzwerkstrukturen sind. In dünn besiedelten, ländlich-peripheren Region ist dagegen die Zahl der Unternehmensnetzwerke zumeist gering, und sie werden sehr häufig nicht durch einen regionalen Branchenschwerpunkt begleitet. Es stellt sich die Frage nach der künftigen Bestandsfestigkeit der Unternehmensnetzwerke gerade in diesen Regionen mit geringer Verdichtung. Diese Frage erhält noch zusätzliches Gewicht, weil öffentliche Förderhilfen, die viele Netzwerke in Ostdeutschland erhalten, zeitlich befristet sind und daher die Fortexistenz der Netzwerke auch ohne Förderung eine besondere Herausforderung darstellt.
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The Contestable Markets Theory - Efficient Advice for Economic Policy
Christian Growitsch, Thomas Wein
Externe Publikationen,
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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The influence of Vertical Integration and Property Rights on Network Access Charges in the German Electricity Markets
Christian Growitsch, Thomas Wein
Externe Publikationen,
No. 6,
2004
Abstract
German Electricity markets were deregulated in the late nineties of the last century. In contrast to other European countries, the German government enacted negotiated third party access instead of installing a regulation authority. Network access charges for new competitors are based on contractual arrangements between energy producers and industrial consumers, which specify the calculation schemes for access charges. Local and regional suppliers are nevertheless able to set (monopolistic) charges at their own discretion, restricted only by the possibility of interference competition authorities. While some of those suppliers have been acquired by one of the four Transmission System Operators and become vertically integrated, the majority is still independent public utility companies. In this paper we analyse if there is evidence for different charging behaviour depending on the supplier’s economic independence or its level of vertical integration. Controlling for other coefficients as the so called structural features and related cost differences as well as the influence of competition law suits, multivariate estimations show significantly lower access charges than vertically separated suppliers, whereas incorporated network operators charge significantly higher charges compared to independent suppliers for at least one typical case.
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Innovation cooperation: experiences from East and West Germany
Jutta Günther
Science and Public Policy,
2004
Abstract
This paper deals with innovation cooperation as a means to support the ongoing catch-up process of the East German economy. Against prevalent beliefs, it can be shown that East German enterprises are more often involved in innovation co-operation than West German firms, and differences in cooperation partner priorities only reflect the given structural differences between the two regions. While cooperating enterprises in East and West Germany are clearly more innovative than their non-cooperating counterparts, a productivity advantage of these firms is (so far) only observable in West Germany. Reasons for this surprising finding are discussed.
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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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Economic outlook for the Euro area 2003
Christian Dreger, Axel Lindner, Udo Ludwig, Klaus Weyerstraß
Wirtschaft im Wandel,
No. 7,
2003
Abstract
Der vorliegende Beitrag enthält die Prognose der wirtschaftlichen Entwicklung im Euroraum, die das IWH im Rahmen des European Forecasting Network im Frühjahr erstellt hat. Darin wird ein moderater Anstieg des realen Bruttoinlandsprodukts von 1,2% in diesem auf 2,1% im kommenden Jahr erwartet. Die derzeitige Wachstumsschwäche ist vor allem strukturell bedingt. Zu nennen sind insbesondere die Arbeitsmärkte, die in den meisten Ländern zu wenig flexibel sind.
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A revised theory of contestable markets : applied on the German telecommunication sector
Christian Growitsch, Thomas Wein
Externe Publikationen,
No. 275,
2002
Abstract
Despite the scepticism raised by the German Monopoly Commission our analysis shows that the revised theory of contestable markets can be applied to the telecommunications market better than expected. The original contestable market theory implied three assumptions necessary to be satisfied to establish potential competition: Free market entry, market exit is possible without any costs, and the price adjustment lag exceeds 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 are satisfied for potential competition to exist. We applied the ‘revised’ contestable market theory to the German telecommunication market and have been able to clearly identify the value added stages in which regulation is required. Under the present conditions local loops - which can be determined as natural monopolies - are not contestable due to sunk costs, high entry lags expected and a probable short price adjustment lag. Local loops can be identified as monopolistic bottlenecks therefore. Regional and local connection networks should also be regulated because a high entry lag and a low price adjustment lag have to be expected as well as current competition does not exist today. The national connection network shows current competition between several network providers; hence regulation can be abolished in this field. Assumed that network access is regulated, services can be supplied by several competing firms.
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Network activities and the productivity gap in East Germany: The role of agglomeration advantages
Anita Wölfl, Joachim Ragnitz
Wirtschaft im Wandel,
No. 13,
2001
Abstract
Ausgehend von theoretischen Überlegungen zum Zusammenhang von Produktivität und Netzwerkaktivitäten von Unternehmen wird untersucht, inwieweit ostdeutsche Unternehmen sich in derartige Netzwerke haben integrieren können und inwieweit dies produktivitätserhöhend wirkt. Die Netzwerkeinbindung wird dabei durch den Agglomerationsgrad der Standortregionen der Unternehmen operationalisiert. Ergebnis ist, daß derartige Netzwerke in Ostdeutschland nur schwach ausgeprägt sind. Überdies ist ein “kritischer“ Agglomerationsgrad, von dem an ein positiver Einfluß auf das Produktivitätsniveau festgestellt werden kann, in Ostdeutschland noch längst nicht erreicht.
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Innovation networks and promotion of original innovation: Problems and solutions for the New Länder, Results of an IWH workshop
Ralf Müller, Anita Wölfl
Wirtschaft im Wandel,
No. 11,
2000
Abstract
Eine im Vergleich zu Westdeutschland geringe Innovationsleistung der ostdeutschen Unternehmen könnte auch auf eine noch unzureichende Einbindung in Netzwerke begründet liegen. Wenn das jedoch die wesentliche Unvollkommenheit des Marktes für FuE in Ostdeutschland ist, müsste sie doch durch eine problemgerichtete Innovationsförderung ausgeglichen werden. Ist das der Fall?
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