Ostdeutsche Wirtschaft: Konjunktur bleibt im Jahr 2015 kräftig, strukturelle Probleme hemmen
Hans-Ulrich Brautzsch, Franziska Exß, Cornelia Lang, Axel Lindner, Brigitte Loose, Udo Ludwig, Birgit Schultz
Konjunktur aktuell,
No. 3,
2015
Abstract
Die Wirtschaft in Ostdeutschland (ohne Berlin) dürfte im Jahr 2015 um 1,5% expandieren. Sie partizipiert dank der engen Integration in den gesamtdeutschen Konjunkturverbund am bundesweiten Aufschwung des privaten Konsums und der Investitionen. Wegen der überwiegenden Orientierung der Exporte auf den Euroraum und die angrenzenden mittel- und osteuropäischen Länder dürfte die ostdeutsche Wirtschaft auch von der dort einsetzenden Erholung profitieren. Allerdings gibt der Handel mit Russland wohl weiter nach.
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Im Fokus: Veränderungen im Städtesystem Russlands: Fortdauernde Tendenz zur Konzentration
Albrecht Kauffmann
Wirtschaft im Wandel,
No. 1,
2014
Abstract
Nach dem Ende der kommunistischen Herrschaft in Russland haben der darauf folgende Transformationsschock und die durch ihn in Gang gesetzten Marktprozesse Veränderungen im Städtesystem bewirkt. Anhand eigens aufbereiteter Daten der amtlichen russischen Städtestatistik geht der Beitrag diesen Veränderungen nach. Wichtigste Erkenntnisse sind die Erhöhung der Konzentration der urbanen Bevölkerung und die Verstärkung der Gegensätze zwischen urbanen Kernen und peripheren Räumen. Für die Zeit etwa ab dem Jahr 2000 darf vermutet werden, dass marktwirtschaftliche Prozesse die Veränderungen im Städtesystem beeinflussen. Hierzu kann die Neue Ökonomische Geographie einen wesentlichen Erklärungsbeitrag leisten, insbesondere vor dem Hintergrund des im Zuge der Preisliberalisierung erfolgten, noch nachwirkenden realen Anstiegs der Kosten des Frachtverkehrs. Diese schützen zum einen die im Zentrum ansässigen Unternehmen vor Wettbewerbern außerhalb der Zentren und verteuern zum anderen die Versorgung der peripheren Regionen. Die Untersuchungsergebnisse stützen die Hypothese, dass steigende Transportkosten die Raumstruktur beeinflussen. Vor dem Hintergrund eines möglichen Energiepreisanstiegs besitzen die Beobachtungen am Städtesystem Russlands daher auch für Deutschland Relevanz.
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Testing for Structural Breaks at Unknown Time: A Steeplechase
Makram El-Shagi, Sebastian Giesen
Computational Economics,
No. 1,
2013
Abstract
This paper analyzes the role of common data problems when identifying structural breaks in small samples. Most notably, we survey small sample properties of the most commonly applied endogenous break tests developed by Brown et al. (J R Stat Soc B 37:149–163, 1975) and Zeileis (Stat Pap 45(1):123–131, 2004), Nyblom (J Am Stat Assoc 84(405):223–230, 1989) and Hansen (J Policy Model 14(4):517–533, 1992), and Andrews et al. (J Econ 70(1):9–38, 1996). Power and size properties are derived using Monte Carlo simulations. We find that the Nyblom test is on par with the commonly used F type tests in a small sample in terms of power. While the Nyblom test’s power decreases if the structural break occurs close to the margin of the sample, it proves far more robust to nonnormal distributions of the error term that are found to matter strongly in small samples although being irrelevant asymptotically for all tests that are analyzed in this paper.
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Spillover Effects among Financial Institutions: A State-dependent Sensitivity Value-at-Risk Approach
Z. Adams, R. Füss, Reint E. Gropp
Abstract
In this paper, we develop a state-dependent sensitivity value-at-risk (SDSVaR) approach that enables us to quantify the direction, size, and duration of risk spillovers among financial institutions as a function of the state of financial markets (tranquil, normal, and volatile). Within a system of quantile regressions for four sets of major financial institutions (commercial banks, investment banks, hedge funds, and insurance companies) we show that while small during normal times, equivalent shocks lead to considerable spillover effects in volatile market periods. Commercial banks and, especially, hedge funds appear to play a major role in the transmission of shocks to other financial institutions. Using daily data, we can trace out the spillover effects over time in a set of impulse response functions and find that they reach their peak after 10 to 15 days.
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Germany on the Way to Energy Efficiency in the Housing Sector: Subsidy Programs by the Federal Government and the Länder Level
Martin T. W. Rosenfeld
Wirtschaft im Wandel,
No. 11,
2011
Abstract
Als Ergänzung eines zunehmend rigider werdenden Ordnungsrechtes, welches die Mindestanforderungen festlegt, existiert auf der Ebene von Bund und Ländern ein breites Angebot von Förderprogrammen für die Sanierung energetisch relevanter Gebäudeteile. Der Bund fördert in diesem Zusammenhang energetisch hochwertige Sanierungsinvestitionen, welche über den Mindeststandard des Ordnungsrechtes hinausgehen. Während die Förderprogramme auf der Bundesebene – abgesehen von der Berücksichtigung unterschiedlicher Finanzierungsmodelle – für alle Investoren sowie für Gebäude, die älter als 15 Jahre sind, bundesweit die gleichen Rahmenbedingungen anlegen, zeigen die Bundesländer eine differenziertere Ausgestaltung ihrer Förderpolitik, die spezifische Faktoren der regionalen Wohnungsmärkte berücksichtigt. Eine Analyse der Wirkung dieser Förderlandschaft auf die regionale Sanierungsaktivität wird Thema weiterer Forschungen sein.
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Local Economic Structure and Sectoral Employment Growth in German Cities
Annette Illy, Michael Schwartz, Christoph Hornych, Martin T. W. Rosenfeld
Tijdschrift voor economische en sociale geografie,
No. 5,
2011
Abstract
This study systematically examines the impact of fundamental elements of urban economic structure on sectoral employment growth in German cities (“urban growth”). We test four elements simultaneously – sectoral specialisation, diversification of economic activities, urban size and the impact of local competition. To account for the effect of varying spatial delimitations in the analysis of urban growth, we further differentiate between cities and planning regions as geographical units. Our regression results show a U-shaped relationship between localisation economies and urban growth and positive effects of local competition on urban growth. With respect to diversification, we find positive effects on urban growth on the city level, but insignificant results on the level of the planning regions. The impact of urban size also differs between free cities and planning regions; in the former, a U-shaped relationship is found, whereas the effect is inversely U-shaped for the latter.
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Extreme Dependence with Asymmetric Thresholds: Evidence for the European Monetary Union
Stefan Eichler, R. Herrera
Journal of Banking and Finance,
No. 11,
2011
Abstract
Existing papers on extreme dependence use symmetrical thresholds to define simultaneous stock market booms or crashes such as the joint occurrence of the upper or lower one percent return quantile in both stock markets. We show that the probability of the joint occurrence of extreme stock returns may be higher for asymmetric thresholds than for symmetric thresholds. We propose a non-parametric measure of extreme dependence which allows capturing extreme events for different thresholds and can be used to compute different types of extreme dependence. We find that extreme dependence among the stock markets of ten initial EMU member countries, the United Kingdom, and the United States is largely asymmetrical in the pre-EMU period (1989–1998) and largely symmetrical in the EMU period (1999–2010). Our findings suggest that ignoring the possibility of asymmetric extreme dependence may lead to an underestimation of the probability of co-booms and co-crashes.
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Identifying Industrial Clusters from a Multidimensional Perspective: Methodical Aspects with an Application to Germany
Matthias Brachert, Mirko Titze, Alexander Kubis
Papers in Regional Science,
No. 2,
2011
Abstract
If regional development agencies assume the cluster concept to be an adequate framework to promote regional growth and competitiveness, it is necessary to identify industrial clusters in a comprehensive manner. Previous studies used a diversity of methods to identify the predominant concentrations of economic activity in one industrial sector in a region. This paper is based on a multidimensional approach developed by Titze et al. With the help of the combination of concentration measures and input–output methods they were able to identify horizontal and vertical dimensions of industrial clusters. This paper aims to refine this approach by using a superior measure of spatial concentration and by integrating information about spatial interdependence of industrial cluster structures to contribute to a more adequate framework for industrial cluster identification.
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The Identification of Industrial Clusters – Methodical Aspects in a Multidimensional Framework for Cluster Identification
Mirko Titze, Matthias Brachert, Alexander Kubis
Abstract
We use a combination of measures of spatial concentration, qualitative input-output analysis and innovation interaction matrices to identify the horizontal and vertical dimension of industrial clusters in Saxony in 2005. We describe the spatial allocation of the industrial clusters and show possibilities of vertical interaction of clusters based on intermediate goods flows. With the help of region and sector-specific knowledge interaction matrices we are able to show that a sole focus on intermediate goods flows limits the identification of innovative actors in industrial clusters, as knowledge flows and intermediate goods flows do not show any major overlaps.
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Urban Growth in Germany – The Impact of Localization and Urbanization Economies
Christoph Hornych, Michael Schwartz, Annette Illy, Martin T. W. Rosenfeld
IWH Discussion Papers,
No. 19,
2009
Abstract
This study examines the impact of localization and urbanization economies as well as the impact of city size on urban growth in German cities from 2003 to 2007. Although, from a theoretical perspective, agglomeration economies are supposed to have positive impacts on regional growth, prior empirical studies do not show consistent results. Especially little is known about agglomeration economies in Germany, where interregional support policy and the characteristics of the federal system are further determinants of urban growth. The results of the econometric analysis show a U-shaped relationship between specialization and urban growth, which particularly holds for manufacturing industries. We do not find evidence for the impact of Jacobs-externalities; however, city size shows a positive (but decreasing) effect on urban growth.
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