Do We Need New Modelling Approaches in Macroeconomics?
Claudia M. Buch, Oliver Holtemöller
Financial Cycles and the Real Economy: Lessons for CESEE Countries,
2014
Abstract
The economic and financial crisis that emerged in 2008 also initiated an intense discussion on macroeconomic research and the role of economists in society. The debate focuses on three main issues. Firstly, it is argued that economists failed to predict the crisis and to design early warning systems. Secondly, it is claimed that economists use models of the macroeconomy which fail to integrate financial markets and which are inadequate to model large economic crises. Thirdly, the issue has been raised that economists invoke unrealistic assumptions concerning human behaviour by assuming that all agents are self-centred, rationally optimizing individuals. In this paper, we focus on the first two issues. Overall, our thrust is that the above statements are a caricature of modern economic theory and empirics. A rich field of research developed already before the crisis and picked up shortcomings of previous models.
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The Structure and Evolution of Intersectoral Technological Complementarity in R&D in Germany from 1990 to 2011
Matthias Brachert, T. Broekel
Abstract
Technological complementarity is argued to be a crucial element for effective Research and Development (R&D) collaboration. The real structure is, however, still largely unknown. Based on the argument that organizations’ knowledge resources must fit for enabling collective learning and innovation, we use the co-occurrence of firms in collaborative R&D projects in Germany to assess inter-sectoral technological complementarity between 129 sectors. The results are mapped as complementarity space for the Germany economy. The space and its dynamics from 1990 to 2011 are analyzed by means of social network analysis.
The results illustrate sectors being complements both from a dyadic and portfolio/ network perspective. This latter is important, as complementarities may only become fully effective when integrated in a complete set of different knowledge resources from multiple sectors. The dynamic perspective moreover reveals the shifting demand for knowledge resources among sectors at different time periods.
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25 Jahre nach dem Mauerfall: Weiterhin strukturelle Unterschiede auf dem Arbeitsmarkt zwischen Ost und West
Hans-Ulrich Brautzsch, Gerhard Heimpold, Walter Hyll, Maike Irrek, Cornelia Lang
Wirtschaft im Wandel,
No. 5,
2014
Abstract
Aus Anlass des Jahrestages hat das Institut für Wirtschaftsforschung Halle (IWH) die Broschüre „25 Jahre nach dem Mauerfall: Wirtschaftliche Integration Ostdeutschlands im Spiegel der Forschung am IWH“ herausgegeben. Ein Überblickstext und 25 Abbildungen zeichnen wichtige ökonomische Entwicklungen seit der deutschen Vereinigung bis heute nach. Der folgende Beitrag gibt Auszüge aus der Broschüre wieder. Im Mittelpunkt stehen die Themen Migration, Demographie und Arbeitsmarkt.
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25 Years after the Fall of the Berlin Wall: The Economic Integration of East Germany
Einzelveröffentlichungen,
2014
Abstract
Citizens of the German Democratic Republic (GDR) regained their civil liberties when the Berlin Wall fell 25 years ago. Since then, they have been able to travel freely and have been free to choose where to live and work. The fall of the Berlin Wall was quickly followed by preparations for German Unification at a speed unparalleled in history: the first free Volkskammer elections on 18 March 1990, the economic, monetary and social union on 1 July 1990, and finally, the unification of Germany when the GDR was included in the jurisdiction of the Basic Law of the Federal Republic of Germany. The integration of the economies of East and West Germany, however, has proven to be a drawn-out process.
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25 Jahre nach dem Mauerfall: Wirtschaftliche Integration Ostdeutschlands im Spiegel der Forschung am IWH
Einzelveröffentlichungen,
2014
Abstract
Als vor 25 Jahren die Berliner Mauer fiel, gewannen die Bürger der DDR ihre bürgerlichen Freiheiten zurück. Sie können seitdem frei reisen und ihren Wohn- und Arbeitsort frei wählen. Auf den Mauerfall folgten in historisch einmaligem Tempo Weichenstellungen zur Deutschen Einheit: erste freie Volkskammerwahlen am 18.03.1990, die Wirtschafts-, Währungs- und Sozialunion am 01.07.1990 und schließlich die Einheit Deutschlands durch den Beitritt der DDR zum Geltungsbereich des Grundgesetzes der Bundesrepublik Deutschland. Die Integration der ost- und westdeutschen Wirtschaft ist allerdings ein langwieriger Prozess.
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The Development of Cities and Municipalities in Central and Eastern Europe: Introduction for a Special Issue of 'Urban Research and Practice'
Martin T. W. Rosenfeld, Albrecht Kauffmann
Urban Research & Practice, Vol. 7 (3),
No. 3,
2014
Abstract
Since the 1990s, local governments in Central and Eastern European (CEE) countries have been confronted by completely new structures and developments. This came after more than 40 years (or even longer in the case of the former Soviet Union) under a socialist regime and behind an iron curtain which isolated them from the non-socialist world. A lack of resources had led to an underinvestment in the refurbishment of older buildings, while relatively cheap ‘prefabricated’ housing had been built, not only in the outskirts of cities, but also within city centres. A lack of resources had also resulted in the fact that the socialist regimes were generally unable to replace old buildings with ‘modern’ ones; hence, there is a very rich heritage of historical monuments in many of these cities today. The centrally planned economies and the development of urban structures (including the shifts of population between cities and regions) were determined by ideology, political rationality and the integration of all CEE countries into the production schemes of the Council for Mutual Economic Assistance and its division of labour by location. The sudden introduction of a market economy, private property, democratic rules, local autonomy for cities and municipalities and access to the global economy and society may be seen as a kind of ‘natural experiment’. How would these new conditions shape the national systems of cities and municipalities? Which cities would shrink and which would grow? How would the relationship between core cities and their surrounding municipalities develop? And what would happen within these cities and with their built environment?
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27.10.2014 • 28/2014
25 Jahre nach dem Mauerfall: Wirtschaftliche Integration Ostdeutschlands im Spiegel der Forschung am IWH: Einladung zum Pressegespräch
Das Institut für Wirtschaftsforschung Halle (IWH) wird am Mittwoch, dem 5. November 2014, in Berlin die Broschüre „25 Jahre nach dem Mauerfall: Wirtschaftliche Integration Ostdeutschlands im Spiegel der Forschung am IWH“ vorstellen. Hierzu laden wir Sie herzlich ein.
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The Euro Plus Pact: Cost Competitiveness and External Capital Flows in the EU Countries
Hubert Gabrisch, K. Staehr
Abstract
The Euro Plus Pact was approved by 23 EU countries in March 2011 and came into force shortly afterwards. The Pact stipulates a range of quantitative targets meant to strengthen cost competitiveness with the aim of preventing the accumulation of external financial imbalances. This paper uses Granger causality tests and vector autoregressive models to assess the short-term linkages between changes in the relative unit labour cost and changes in the current account balance. The sample consists of annual data for 27 EU countries for the period 1995-2012. The main finding is that changes in the current account balance precedes changes in relative unit labour costs, while there is no discernible effect in the opposite direction. The divergence in unit labour costs between the countries in Northern Europe and the countries in Southern and Eastern Europe may thus partly be the result of capital flows from the core of Europe to the periphery prior to the global financial crisis. The results also suggest that the measures in the Euro Plus Pact to restrain the growth of unit labour costs may not affect the current account balance in the short term.
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Do We Need New Modelling Approaches in Macroeconomics?
Claudia M. Buch, Oliver Holtemöller
IWH Discussion Papers,
No. 8,
2014
Abstract
The economic and financial crisis that emerged in 2008 also initiated an intense discussion on macroeconomic research and the role of economists in society. The debate focuses on three main issues. Firstly, it is argued that economists failed to predict the crisis and to design early warning systems. Secondly, it is claimed that economists use models of the macroeconomy which fail to integrate financial markets and which are inadequate to model large economic crises. Thirdly, the issue has been raised that economists invoke unrealistic assumptions concerning human behaviour by assuming that all agents are self-centred, rationally optimizing individuals. In this paper, we focus on the first two issues. Overall, our thrust is that the above statements are a caricature of modern economic theory and empirics. A rich field of research developed already before the crisis and picked up shortcomings of previous models.
Read article