Aktuelle Trends: ista-IWH-Energieeffizienzindex 2009 - Weiterhin sinkender Energieverbrauch in Mehrfamilienhäusern
Claus Michelsen
Wirtschaft im Wandel,
No. 12,
2010
Abstract
Der Energieverbrauch für Raumwärme in Mehrfamilienhäusern ist rückläufig. Das zeigen die aktuellen Ergebnisse des ista-IWH-Energieeffizienzindex für die Abrechnungsperiode 2009. Gegenüber 2006 ist der bundesweite Indexwert von 107 auf 98,5 gesunken. Dies entspricht einem Rückgang des durchschnittlichen Energiebedarfs um rund 13,4 Kilowattstunden je Quadratmeter Wohnfläche (kWh/m2) pro Jahr bzw. um rund –8,9%. Trotz dieser deutlichen Abnahme ist der Weg hin zu einem klimaneutralen Immobilienbestand noch sehr weit: Bundesweit verbrauchten Mehrfamilienhäuser im Jahr 2009 durchschnittlich rund 136 kWh/m2 – in den Neuen Ländern rund 124,5 kWh/m2 und in den Alten Ländern rund 139,5 kWh/m2. Nach wie vor besteht ein erhebliches regionales Gefälle im Energieverbrauch. Näher betrachtet weisen der Norden und der Westen Deutschlands, verglichen mit östlichen und südlichen Regionen, deutlich höhere Energiekennwerte auf. Vor allem die Mehrfamilienhäuser in Küstennähe und in den Ballungsgebieten Nordrhein-Westfalens schneiden auch im Jahr 2009 schlechter ab als diejenigen in den anderen Landesteilen.
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07.12.2010 • 68/2010
Weiterhin sinkender Energieverbrauch in Mehrfamilienhäusern
Der Energieverbrauch für Raumwärme in Mehrfamilienhäusern ist rückläufig. Das zeigen die aktuellen Ergebnisse des ista-IWH-Energieeffizienz-index für die Abrechnungsperiode 2009. Gegenüber 2006 ist der bundesweite Indexwert von 107 auf 98,5 gesunken. Dies entspricht einem Rückgang des durchschnittlichen Energiebedarfs um rund 13,4 Kilowattstunden je Quadratmeter Wohnfläche (kWh/m2) pro Jahr bzw. um rund –8,9%.
Klimarisikomanagement mit dem CO2-Navigator
Edeltraud Günther, C. Manthey, G. Weber, M. Nowack, Wilfried Ehrenfeld, Henry Dannenberg
HMD - Praxis der Wirtschaftsinformatik,
2010
Abstract
Die Software CO2-Navigator wendet den Realoptionsansatz und den Risikomanagementprozess auf den unternehmerischen Umgang mit dem Klimawandel an. Er richtet sich in erster Linie an emissionsintensive, kleine und mittlere Unternehmen ist jedoch auch in größeren Unternehmen, die beispielsweise eine eigene „Sustainability“-Abteilung unterhalten, anwendbar. Der Wertbeitrag des Softwaretools besteht darin, dass es die Aspekte Klimastrategie, quantitative Bewertung von Klimaschutzinvestitionen sowie Emissionsrechtemanagement vereint. Es kann im Unternehmen in Bereichen strategisches Management, regulatorisches Management, Energie- und Umweltmanagement, Technologiemanagement sowie Controlling Anwendung finden. Der spezielle Wertbeitrag dieses Artikels liegt in der Verknüpfung von Klimarisikomanagement und Realoptionsansatz sowie in der Darstellung des CO2-NAVIGATORs vor dem Hintergrund seiner Entwicklung im Sinne konstruktionsorientierter Forschung.
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Exports Versus FDI Revisited: Does Finance Matter?
Claudia M. Buch
Bundesbank Discussion Paper 03/2010,
2010
Abstract
This paper explores the impact of financial constraints on the internationalization
strategies of firms. It contributes to the literature by focusing on three aspects: First, the paper studies the impact of financial constraints on exporting relative to FDI. Consistent with theory, the empirical results confirm that the impact of financial constraints is stronger for FDI than for exporting. Second, the paper analyzes the extensive and the intensive margins and finds that financial frictions matter for both. Third, the paper explores the impact on manufacturing as compared to service industries and shows that firms in service industries are affected more than firms in manufacturing. The paper also identifies a threshold effect: Financial constraints do not matter for small firms whose productivity seems to be too low to consider international expansions.
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Openness and Income Disparities: Does Trade Explain The 'Mezzogiorno' Effect?
Claudia M. Buch, P. Monti
Review of World Economics,
No. 4,
2010
Abstract
We use Italian regional data to answer the question whether trade affects within-country income differentials. In Italy, the more affluent Northern regions trade more with the rest of the world than the poorer ones in the Southern “Mezzogiorno” regions. Prima facie, there is a positive correlation between external trade and per capita income. Studying this relationship empirically requires taking into account the endogenous component of trade. We argue that panel cointegration models can complement instrumental variables techniques to account for the endogeneity of trade in a panel context. Both methods show a positive link between trade openness and the level of income per capita.
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CO2-Navigator – ein Softwaretool zur Unterstützung von Investitionsoptionen zur Emissionsreduktion und zum Management von Klimarisiken
Edeltraud Günther, G. Weber, M. Nowack, Wilfried Ehrenfeld
Klimaschutz und Anpassung an die Klimafolgen: Strategien, Maßnahmen und Anwendungsbeispiele,
2009
Abstract
Global warming and increased climate policies are associated with risks for many companies, but also with opportunities.The chair of Business Administration, esp. Environmental Management at the TU Dresden and the Halle Institute for Economic Research studied the question of how companies can deal with these challenges funded by the BMBF project “Corporate Management under the Constraints of Climate Change Policy (CO2 Navigator)“.Specific concern of the project network was to provide companies assistance to develop a) potential emission reduction strategies and medium-term adjustments to changing environmental conditions, b) assess the economic impact and c) derive decisions for practical use on this basis.The core elements of the research, risk management and assessment of adaptation strategies with the real option approach and the CO2-Navigator software resulting from the project are described in this article.
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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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Financial constraints and the margins of FDI
Claudia M. Buch
Bundesbank Discussion Paper 29/2009,
2009
Abstract
Recent literature on multinational firms has stressed the importance of low productivity as a barrier to the cross-border expansion of firms. But firms may also need external finance to shoulder the costs of entering foreign markets. We develop a model of multinational firms facing real and financial barriers to foreign direct investment (FDI), and we analyze their impact on the FDI decision (the extensive margin) and foreign affiliate sales (the intensive margin). We provide empirical evidence based on a detailed dataset of German multinationals which contains information on parent-level and affiliate-level financial constraints as well as about the location the foreign affiliates. We find that financial factors constrain firms’ foreign investment decisions, an effect felt in particular by large firms. Financial constraints at the parent level matter for the extensive, but less
so for the intensive margin. For the intensive margin, financial constraints at the affiliate level are relatively more important.
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Barriers to Internationalization: Firm-Level Evidence from Germany
Claudia M. Buch
IAW Discussion Paper No. 52,
2009
Abstract
Exporters and multinationals are larger and more productive than their domestic
counterparts. In addition to productivity, financial constraints and labor market
constraints might constitute barriers to entry into foreign markets. We present new
empirical evidence on the extensive and intensive margin of exports and FDI based on detailed micro-level data of German firms. Our paper has three main findings. First, in line with earlier literature, we find a positive impact of firm size and productivity on firms’ international activities. Second, small firms suffer more frequently from financial constraints than bigger firms, but financial conditions have no strong effect on internationalization. Third, labor market constraints constitute a more severe barrier to foreign activities than financial constraints. Being covered by collective bargaining particularly impedes international activities.
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Russia: Ongoing Strong Economic Growth Overshadowed by High Inflation
Martina Kämpfe
Wirtschaft im Wandel,
No. 6,
2008
Abstract
Russian economic growth in 2007 again was driven by strong private consumption and investment, grew by double-digit rates. The roles of budget expenditures and borrowing of private and state-owned firms from abroad in financing investments increased rapidly. Russian inflation climbed again; it was driven up by increases in food prices in line with rising food prices around the world. Inflation pressures had sharpened through more budget spending and scheduled rate increases for electricity and gas as well as for regulated prices for municipal services. Broad money supply (M2) rose rapidly because of strong foreign currency inflows, too. Central bank seeks to bring inflation under control by tightening monetary policy this year. That will somewhat dampen economic growth, but nevertheless GDP growth in the near future will remain at high levels.
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