Die Lage der Weltwirtschaft und der deutschen Wirtschaft im Frühjahr 2007
Wirtschaft im Wandel,
1. Sonderausgabe
2007
Abstract
In spring 2007, the global economy remains robust. While growth rates have declined slightly from last year, as business activity in the US has slowed, they continue to reflect an upswing, which by now has held on for a notably long time. Especially the developing and emerging countries have been raising output very fast, due in part to their increasing role in the international division of labour. In the industrialised economies, on the other hand, the current recovery has not been remarkably strong. So far the slowdown in the US economy has not spilled over to other regions and the Euro Area as well as Japan continue to expand at a high pace. Here expansive monetary policy provided a notable support. Buoyant financial markets stimulated the world economy additionally, even though market volatility has increased since the end of February. The US central bank’s current concern with inflationary risks keeps it from loosening its slightly restrictive monetary policy. It will be the second half of the year – when price pressures have eased – until the Fed makes its first rate cut. The ECB, on the other hand, has been preparing financial markets for a further increase in interest rates by summer. In 2007 and 2008 the growth disparities in the industrialised countries will diminish. On one hand, the upswing in the Euro Area will start to moderate, as fiscal policy hampers business activity and monetary policy will not stimulate anymore. On the other hand, the US economy will slowly gain pace from summer onwards; the emerging markets will continue to develop in a highly dynamic fashion. World-GDP in this and next year will likely rise by about 3 ¼ % in 2007, which is still faster than in the average of the last ten years. World trade will rise by 7 ½ % in the coming two years. An oil price of 65 US-Dollar and an exchange rate between the Euro and the US-Dollar of 1.32 were assumed for both years 2007 and 2008. The real estate market in the USA continues to be a risk for...
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Ein kubischer Spline zur temporalen Disaggregation von Stromgrößen und seine Anwendbarkeit auf Immobilienindizes
Albrecht Kauffmann, A. Nastansky
Statistische Diskussionsbeiträge der Wirtschafts- und Sozialwissenschaftlichen Fakultät, Universität Potsdam, Nr. 22,
No. 22,
2006
Abstract
Das Geschehen auf den regional sehr heterogenen Immobilienmärkten ist vor dem Hintergrund stark steigender Preise für Wohn- und Gewerbeimmobilien in den letzten Jahren in weiten Teilen Europas und der Welt stärker ins das Blickfeld der Allgemeinheit sowie der wirtschaftspolitisch Handelnden, insbesondere der Zentralbank, gerückt. Mit einem Anteil von rund 50% nimmt das in Immobilien gebundene Vermögen eine dominierende Stellung im Brutto-Volksvermögen der privaten Haushalte in Deutschland ein. Schwankungen im Wert dieses Eigentums beeinflussen das Verhalten der Haushalte auf den Faktor- und Gütermärkten. So können Vermögenseffekte – hervorgerufen durch steigende oder fallende Immobilienpreise – den Konjunkturverlauf über die Konsumnachfrage positiv wie negativ stimulieren. Überdies kann die Stabilität des Finanzsystems infolge übermäßiger Bewegungen in den Immobilienpreisen und damit einhergehenden Forderungsausfällen von Hypothekendarlehen gefährdet werden. Angesichts der herausragenden volkswirtschaftlichen Bedeutung zeichnet sich jedoch der deutsche Immobilienmarkt auf Grund eines fehlenden amtlichen Berichtssystems durch eine geringe Transparenz aus. Die amtliche Statistik beschränkt sich auf die Erhebung und Veröffentlichung von Preisen für Bauland, Baupreise für Wohngebäude sowie die Mietpreisentwicklung von Wohnimmobilien. Privatwirtschaftliche Institutionen versuchen diese Nische durch die Erhebung eigener Daten und Veröffentlichung von Indizes zu besetzen. Ein Index, der das Preisgeschehen auf den Wohn- und Gewerbeimmobilienmärkten in Deutschland auch unterjährig abbildet, fehlt aber weiterhin.
Die temporale Disaggregation von Jahresdaten kann mittels Regression auf Zeitreihen, die die geforderte Periodizität aufweisen, erfolgen. Soll aber auf die Zuhilfenahme weiterer Daten verzichtet werden, bieten sich deterministische Verfahren an. Diesen sind auch die kubischen Splines zuzurechnen, deren Verwendung in der Literatur gelegentlich – ohne Erläuterung der Methodik und ohne Diskussion der mit ihrer Anwendung verbundenen Probleme, bzw. entsprechende Verweise auf die existierende Literatur – erwähnt wird.
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What can a town achieve today? Integration, urban regimes, and the acceptance of models
Peter Franz
IWH Discussion Papers,
No. 56,
1997
Abstract
Since 1990, the date of German reunification, urban development and especially the recovery of inner cities in East Germany has been delayed by several factors including real estate restitution claims, inflexible preservation codes for historic buildings, and the shortage of stores for retailers. This blockade situation has resulted in the quick and intensified development of shopping centres as „inner city substitutes“ on the urban periphery. The combined effect of the factors preventing revitalisation strategies and the newly realised and practised potential for autonomous action by the authorities of smaller municipalities was a severe restriction for the governing capacities of the authorities of the larger cities. in regaining their governance capability city governments are dependent on urban groups joining and supporting public developmental strategies. In accordance with Stone (1993) and Stoker and Mossberger (1994) urban groups active in urban development policy can be described as urban regimes. In Germany three types of regimes can be differentiated. The cities differ with respect to the political strength and the forms of coalition and conflict between different urban regimes. Specific conditions in East Germany have led to a special regime constellation with a powerful „conservation regime“ on the one hand and a vivid „globalisation regime“ on the other hand. This conflicting constellation results in a developmental blockade. The hypothesis is that a third regime type, the „local alliance“, is missing and still has to be created by practices such as city marketing and city management. Only when this regime building process has advanced will new constellations of political coalitions and compromise become possible and be able to reduce governance problems of city government in the long run.
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Explaining Regional Disparities in Housing Prices across German Districts
Lars Brausewetter, Stephan L. Thomsen, Johannes Trunzer
IZA Institute of Labor Economics,
March
2022
Abstract
Over the last decade, German housing prices have increased unprecedentedly. Drawing on quality-adjusted housing price data at the district level, we document large and increasing regional disparities: growth rates were higher in 1) the largest seven cities, 2) districts located in the south, and 3) districts with higher initial price levels. Indications of price bubbles are concentrated in the largest cities and in the purchasing market. Prices seem to be driven by the demand side: increasing population density, higher shares of academically educated employees and increasing purchasing power explain our findings, while supply remained relatively constrained in the short term.
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