The Economics of Restructuring the German Electricity Sector
Christian Growitsch, Felix Müsgens
Zeitschrift für Energiewirtschaft,
No. 3,
2005
Abstract
The debate about the development of German electricity prices after the liberalization of energy markets in 1998 raises the question of failures in market restructuring. However, a general statement would be misleading for two main reasons. Firstly, the price development, analyzed for the exemplary case of household prices, shows significant differences among the stages of the value chain. Secondly, the underlying cost structure might have changed from 1998 to 2004. While such effects can be expected to level out over time, they can distort the comparison of a small period of observation. For these reasons, we analyzed the different price components at a detailed level, finding a considerable price reduction of about 32% in generation and a much lower reduction of 13% in transmission and distribution tariffs. These decreases have been mostly compensated by a significant increase in taxes and subsidies (+56%).
Read article
Youth unemployment and the influence of parents: Is the East different?
Eva Reinowski
Wirtschaft im Wandel,
No. 7,
2005
Abstract
Für die Beschäftigungschancen junger Erwachsener spielt neben gesamtwirtschaftlichen Faktoren vor allem das eigene Ausbildungsniveau eine entscheidende Rolle. In Deutschland hat, stärker als in vielen anderen Ländern, die soziale Herkunft einen großen Einfluß auf den Bildungsweg von Jugendlichen und damit auf ihre Aussichten auf dem Arbeitsmarkt. Allerdings sind die Ausgangsbedingungen für Jugendliche in den alten und den neuen Bundesländern noch sehr unterschiedlich. Das dient als Ausgangspunkt für eine Untersuchung eventueller Unterschiede zwischen beiden Regionen bezüglich der Zusammenhänge zwischen der Qualifikation und dem Arbeitsmarkterfolg sowie zwischen sozialer Herkunft und Erwerbs- und Ausbildungsverhalten. Es wird festgestellt, daß die Zusammenhänge tendenziell ähnlich sind. Allerdings lassen sich partielle Unterschiede beobachten. So sind – trotz eines positiven Zusammenhangs von Ausbildungsniveau und Arbeitsmarkterfolg in beiden untersuchten Stichproben – die Erwerbschancen für gering- und unqualifizierte Jugendliche in den neuen Bundesländern und Berlin deutlich schlechter. Das deutet darauf hin, daß von einer angespannten Arbeitsmarktlage geringqualifizierte Jugendliche stärker betroffen sind. Der ebenfalls zu beobachtende deutliche Unterschied im Zusammenhang von Ausbildungsniveau der Jugendlichen und dem der Haushaltsbezugsperson erklärt sich zum großen Teil aus dem unterschiedlichen Qualifikationsniveau der Haushaltsbezugspersonen in beiden untersuchten Stichproben. Um einen Hinweis auf den Abbau der Nachteile von Kindern aus sozial schwachen Familien durch eine Förderung der Kinder im Vorschulbereich zu erhalten, bedarf es daher weitergehender Forschung unter Einbeziehung der Qualität des Betreuungsangebots.
Read article
An analysis of household electricity price developments in Germany since liberalization
Christian Growitsch, Felix Müsgens
Externe Publikationen,
2005
Abstract
Despite the liberalization of energy markets in 1998, household electricity prices in 2004 are nearly the same as 1998, indicating a failure of market restructuring. However, such a general consideration is misleading for two main reasons. Firstly, the price development shows significant differences among the stages of the value chain. Secondly, the underlying cost structure might have changed from 1998 to 2004. While such effects can be expected to level out over time, they can distort the comparison of a small period of observation. For these reasons, we analyzed the different price components at a detailed level, finding a considerable price reduction of about 32% in generation and a much lower reduction of 13% in transmission and distribution tariffs. These decreases have been mostly compensated by a significant increase in taxes and subsidies (+56%).
Read article
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.
Read article
Aggressive Orders and the Resiliency of a Limit Order Market
Hans Degryse, Frank de Jong, Maarten Van Ravenswaaij, Gunther Wuyts
Review of Finance,
No. 2,
2005
Abstract
We analyze the resiliency of a pure limit order market by investigating the limit order book (bid and ask prices, spreads, depth and duration), order flow and transaction prices in a window of best limit updates and transactions around aggressive orders (orders that move prices). We find strong persistence in the submission of aggressive orders. Aggressive orders take place when spreads and depths are relatively low, and they induce bid and ask prices to be persistently different after the shock. Depth and spread remain also higher than just before the order, but do return to their initial level within 20 best limit updates after the shock. Relative to the sample average, depths stay around their mean before and after aggressive orders, whereas spreads return to their mean after about twenty best limit updates. The initial price impact of the aggressive order is partly reversed in the subsequent transactions. However, the aggressive order produces a long-term effect as prices show a tendency to return slowly to the price of the aggressive order.
Read article
Technology spillovers from external investors in East Germany: no overall effects in favor of domestic firms
Harald Lehmann, Jutta Günther
IWH Discussion Papers,
No. 198,
2004
Abstract
The study deals with the question whether external (foreign and West German) investors in East Germany induce technological spillover effects in favor of domestic firms. It ties in with a number of other econometric spillover studies, especially for transition economies, which show rather mixed and inconclusive results so far. Different from existing spillover analyses, this study allows for a much deeper regional breakdown up to Raumordnungsregionen and uses a branch classification that explicitly considers intermediate and investment good linkages. The regression results show no positive correlation between the presence of external investors and domestic firms’ productivity, no matter which regional breakdown is looked at (East Germany as a whole, federal states, or Raumordnungsregionen). Technology spillovers which may exist in particular cases are obviously not strong enough to increase the domestic firms’ overall productivity.
Read article
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.
Read article
Significant differences in annual working hours among the Länder
Hans-Ulrich Brautzsch
Wirtschaft im Wandel,
No. 5,
2004
Abstract
Der Beitrag behandelt einige empirische Befunde zu den regionalen Unterschieden in den Jahresarbeitszeiten auf Länderebene. Es werden mögliche Ursachen hierfür genannt und Konsequenzen für den Ausweis der Lohnkostenbelastung aufgezeigt.
Read article
Measurement of Contagion in Banks' Equity Prices
Reint E. Gropp, G. Moerman
Journal of International Money and Finance,
No. 3,
2004
Abstract
This paper uses the co-incidence of extreme shocks to banks’ risk to examine within-country and across country contagion among large EU banks. Banks’ risk is measured by the first difference of weekly distances to default and abnormal returns. Using Monte Carlo simulations, the paper examines whether the observed frequency of large shocks experienced by two or more banks simultaneously is consistent with the assumption of a multivariate normal or a student t distribution. Further, the paper proposes a simple metric, which is used to identify contagion from one bank to another and identify “systemically important” banks in the EU.
Read article
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.
Read article