Energy Efficiency of the Housing Stock: Are potential savings overrated?
Claus Michelsen, S. Müller-Michelsen
Wirtschaft im Wandel,
No. 9,
2010
Abstract
A core element of the European Climate Protection Policy is the reduction of Energy usage in private households. Legal instruments focus particularly on private multifamily housing. When refurbishing or building a new home, the German regulation for energy saving in buildings and building systems, Energieeinsparverordnung (EnEV 2009), thereby formulates relatively strict standards on energy conservation. But these standards mainly address the technical potentials of energy efficiency gains instead of considering market conditions and different types of housing, especially their age. Theory suggests that legal settings therefore retain owners to refurbish their homes, when returns on investment are negative, especially in regions where market conditions do not allow for higher rents or the costs of refurbishment are too high.
The article presents evidence for these theoretical considerations: based on a large scale sample provided by the company ista Germany, it can be shown, that energy usage differs by the age of dwellings and by the standard of refurbishment. Data suggests that the assumed potentials of energy conservation, which are mainly motivated by technical considerations, are too high. The differences may be a result of different cost functions of refurbishment. Further evidence for this finding is provided by architectural considerations.
As a result, the article suggests to legally distinguishing between different types of housing and to consider market conditions, when providing public funding for energy efficiency. It is suggested to implement a two multidimensional strategy, considering climate protection, urban development issues and the rationality of real estate investors.
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Kurzarbeit: Wichtige Stütze des Arbeitsmarktes in der Krise, aber keine Dauerlösung
Hans-Ulrich Brautzsch, Karl Henner Will
Wirtschaft im Wandel,
No. 8,
2010
Abstract
Kurzarbeit hat sich als ein wichtiges arbeitsmarktpolitisches Instrument bei der Bewältigung der Folgen der schwersten Wirtschaftskrise der Nachkriegszeit
erwiesen. Dazu haben in erster Linie zeitlich befristete Neuregelungen zum Kurzarbeitergeld beigetragen, die diesen „Klassiker“ unter den arbeitsmarktpolitischen Instrumenten für die Unternehmen wieder deutlich attraktiver gemacht haben. Die Zahl der Kurzarbeiter erreichte im Mai des Jahres 2009 mit über 1,5 Millionen Personen einen Stand, der seit dem Jahr 1991 nicht mehr erreicht worden war. Bezogen auf 100 Arbeitslose standen 45 Arbeitnehmer in Kurzarbeit. Nur Mitte der 1970er Jahre und im Jahr 1991 wurde eine – bezogen auf die registrierten Arbeitslosen – höhere Entlastung durch Kurzarbeit erreicht. Die Zahl der Kurzarbeiter geht derzeit sowohl in Ost- als auch in Westdeutschland zurück. Bemerkenswert ist die Zunahme der Dauer von Kurzarbeit. Mittlerweile werden schon 43% der Konjunkturkurzarbeiter seit über einem Jahr durch dieses Instrument gestützt. Die Gefahr einer Verstetigung von „Langzeitkurzarbeit“
nimmt zu, wenn die maximale Bezugsdauer von Kurzarbeitergeld – wie zuletzt im November 2009 – weiter verlängert wird. Dadurch wird die Intention, mit Kurzarbeit einem temporären Arbeitsausfall zu begegnen, konterkariert. Generell ist zu bedenken, dass auch bei Kurzarbeit die Gefahr von Mitnahmeeffekten besteht. Vor dem Hintergrund einer deutlichen Aufhellung der Lage auf dem Arbeitsmarkt sollten nunmehr die großzügigen Regelungen für die Inanspruchnahme von Kurzarbeitergeld schrittweise zurückgenommen werden.
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The Extreme Risk Problem for Monetary Policies of the Euro-Candidates
Hubert Gabrisch, Lucjan T. Orlowski
Abstract
We argue that monetary policies in euro-candidate countries should also aim at mitigating excessive instability of the key target and instrument variables of monetary policy during turbulent market periods. Our empirical tests show a significant degree of leptokurtosis, thus prevalence of tail-risks, in the conditional volatility series of such variables in the euro-candidate countries. Their central banks will be well-advised to use both standard and unorthodox (discretionary) tools of monetary policy to mitigate such extreme risks while steering their economies out of the crisis and through the euroconvergence process. Such policies provide flexibility that is not embedded in the Taylor-type instrument rules, or in the Maastricht convergence criteria.
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A New Metric for Banking Integration in Europe
Reint E. Gropp, A. K. Kashyap
Europe and the Euro,
2010
Abstract
Most observers have concluded that while money markets and government bond markets are rapidly integrating following the introduction of the common currency in the euro area, there is little evidence that a similar integration process is taking place for retail banking. Data on cross-border retail bank flows, cross-border bank mergers and the law of one price reveal no evidence of integration in retail banking. This paper shows that the previous tests of bank integration are weak in that they are not based on an equilibrium concept and are neither necessary nor sufficient statistics for bank integration. The paper proposes a new test of integration based on convergence in banks' profitability. The new test emphasises the role of an active market for corporate control and of competition in banking integration. European listed banks profitability appears to converge to a common level. There is weak evidence that competition eliminates high profits for these banks, and underperforming banks tend to show improved profitability. Unlisted European banks differ markedly. Their profits show no tendency to revert to a common target rate of profitability. Overall, the banking market in Europe appears far from being integrated. In contrast, in the U.S. both listed and unlisted commercial banks profits converge to the same target, and high profit banks see their profits driven down quickly.
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Reform of IMF Lending Facilities Increases Stability in Emerging Market Economies
J. John, Tobias Knedlik
Wirtschaft im Wandel,
No. 3,
2010
Abstract
Following the current international financial and economic crisis the IMF reformed its lending facilities. Two new instruments are of particular importance: the Flexible Credit Line (FCL) and the High Access Precautionary Arrangements (HAPA). The major innovation of the new facilities is that the traditional ex-post conditionality is replaced by an ex-ante qualification process. An ex-ante qualification process leads to a short-term availability of funds during the emergence of crises and avoids long negotiation processes during a crisis. Additionally, the FCL is high powered, amounting to 900 to 1000% of the quota. It can therefore be expected that the programs have preventive effects. In difference to previous attempts to implement precautionary credit lines, the FCL and HAPA successfully created demand. First empirical observations show, that a stigmatization, which could have been expected from experience, did not take place. Countries who qualified for the FCL did rather well during the current crisis and did not face shrinking confidence due to expected crises. To be more efficient, the new lending facilities should be complemented be an international regulatory framework, which limits moral-hazard-induced higher risk taking. Additionally more members should be encouraged to demand the new instruments to increase its systemic importance.
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Trotz Rückgang arbeitsmarktpolitischer Maßnahmen Stabilisierung der Beschäftigungslage in Ostdeutschland
Hans-Ulrich Brautzsch
Wirtschaft im Wandel,
20 Jahre Deutsche Einheit - Teil 2 -
2010
Abstract
Im Zeitraum von 1990 bis 1993 schrumpfte im Zuge des Um- und Neustrukturierungsprozesses der ostdeutschen Wirtschaft die Zahl der Er-werbstätigen um etwa ein Drittel. In dieser Phase haben arbeitsmarktpolitische Maßnahmen den Umbruch auf dem ostdeutschen Arbeitsmarkt in erheblichem Maße flankiert. Zeitweise war etwa ein Fünftel des gesamten Erwerbspersonenpotenzials in Ostdeutschland in solchen Maßnahmen tätig. Ab Mitte der 1990er Jahre ging der Einsatz arbeitsmarktpolitischer Instrumente deutlich zurück. Mittlerweise sind nur noch 5% des Erwerbspersonenpotenzials in arbeitsmarktpolitischen Maßnahmen beschäftigt. Trotz dieser Rückführung hat sich die Beschäftigungslage auf dem ostdeutschen Arbeitsmarkt stabilisiert.
Dafür waren zwei Ursachen maßgebend: Erstens ist das gesamtwirtschaftliche Arbeitsangebot deutlich gesunken. Maßgebend dafür waren die demographische Entwicklung, die Wanderungsverluste sowie der deutliche Rückgang der Erwerbsbeteiligung. Zweitens hat sich mit dem Aufbau eines wettbewerbsfähigen Unternehmenssektors der Beschäftigungsstand allmählich stabilisiert, wobei der Anteil der durch arbeitsmarktpolitische Maßnahmen gestützten Arbeitsplätze nach dem Jahr 2000 weiter abnahm. Diese beiden Ursachen haben dazu geführt, dass nunmehr eine etwas größere Zahl von nicht geförderten Arbeitsplätzen einem deutlich geschrumpften Arbeitsangebot gegenübersteht. Die „Arbeitsplatzausstattung“ hat sich damit relativ verbessert. Die Unterbeschäftigungsquote ist allerdings noch immer erheblich höher als in den Alten Bundesländern.
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Unternehmensnetzwerke in der Photovoltaik-Industrie – Starke Verbundenheit und hohe Kooperationsintensität
Christoph Hornych, Matthias Brachert
Wirtschaft im Wandel,
No. 1,
2010
Abstract
The Photovoltaic-(PV)-Industry is a comparatively new industrial sector which is affected by high level of uncertainty. This uncertainty is derived from different technology paths as same as uncertainty about the future market developments. Important instruments to come up with uncertainty are firm networks. Thereby the state of the knowledge about the degree of interconnectedness between the German PV-industry is poor. This article aims to close this gap by giving an overview about the integration of PV-enterprises in firm networks.
The empirical analysis of the network structure of the German PV-industry thereby confirms the expected high level of network relations. Almost nine out of ten firms cooperate with other PV-firms in Germany. Also, the intensity of cooperation turns out to be above the average compared to other industrial sectors. On average one PV-firm cooperates with 5.8 other PV-firms. This indicates possibilities for a better knowledge exchange in the sector. Overall the high cooperation intensity supports the assumption that PV-industry is able to benefit from the spatial concentration of the industry in the region.
Despite the dense network which has already emerged, the promotion of networks can still be an efficient paradigm to support innovativeness and growth in this sector. This is going to be even more successful if the results of the network analysis are integrated into the government supporting scheme.
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East German Labour Market
Hans-Ulrich Brautzsch
Wirtschaft im Wandel,
No. 11,
2009
Abstract
In the course of 2009, due to the great decline of production activities, the situation in the East German labor market deteriorated. The number of employees decreased and the registered unemployment rose slowly in the first half of this year. In this situation, reducing working time by extending short-time work turned out to be a very useful instrument. Besides, labour market policy measures were expended. Furthermore, labour supply, like in recent years, decreased. In 2010, the situation on the East German labour market will worsen due to low production growth.
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Energy Efficient Homes in Germany: Lower Energy Requirement in the East and the South – Results of the ista-IWH-Energy-Efficiency-Index 2007
Claus Michelsen
Wirtschaft im Wandel,
No. 9,
2009
Abstract
At the latest since the oil crisis in the beginning of the 1970s, energy efficiency of homes became a widely discussed topic. In the past, it were in first line aspects of the scarcity of fossil energy sources that motivated the debate. Nowadays, climate protection is a main goal of the European energy policy. For this purpose, a new instrument was introduced in 2009. Europe-wide, the “Energy Performance Certificate” for buildings presents detailed information on the required energy for heating, warm water and (indirectly) the resulting costs for tenants. This instrument is designed to provide further information for consumers to influence their behavior in favor of energy efficient buildings.
Until now, there is only little information on spatial aspects of the energy efficiency of housing in Germany. This article presents data on the level of Germany’s NUTS2 regions. In our calculations, we include information on more than 2.6 million flats, interpolating it representatively for the total stock of multifamily buildings and considering the regional climate.
The results of the first ista-IWH-Energy-Efficiency-Index indicate large differences between regions. The required energy for housing is much lower in the eastern and southern parts of Germany, compared to the western or northern parts. Explanations can be seen in a different structure of the housing stock (e.g. age of construction, level of refurbishment). Moreover, first analyses of the market structure indicate that owner occupied flats are more efficient in energy requirement than rental flats. Vacancy rates, the duration of occupation of rented flats and the level of regional income play an additional role for the energy efficiency of the regional housing stock.
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Openness and Growth: The Long Shadow of the Berlin Wall
Claudia M. Buch, Farid Toubal
Journal of Macroeconomics,
No. 3,
2009
Abstract
The question whether international openness causes higher domestic growth has been subject to intense discussions in the empirical growth literature. This paper addresses the issue in the context of the fall of the Berlin Wall in 1989. We analyze whether the slow convergence in per capita incomes between East and West Germany and the lower international openness of East Germany are linked. We address the endogeneity of openness by adapting the methodology proposed by Frankel and Romer (1999) to a panel framework. We instrument openness with time-invariant exogenous geographic variables and time-varying exogenous policy variables. We also distinguish the impact of different channels of integration. Our paper has three main findings. First, geographic variables have a significant impact on regional openness. Second, controlling for geography, East German states are less integrated into international markets along all dimensions of integration considered. Third, the degree of openness for trade has a positive impact on regional income per capita.
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