Editorial
Ulrich Blum
Wirtschaft im Wandel,
Nr. 4,
2009
Abstract
Hat der Staat mit dem „Enteignungsgesetz“ den Rubikon überschritten? „Alea iacta est“, die Würfel sind geworfen – noch nicht gefallen, man kann noch zurück. Aber auch Cäsar kehrte nicht um, er stellte die Systemfrage! Es gab frühzeitig eine Vielzahl ordnungsökonomisch verträglicher Vorschläge, beispielsweise einer „chirurgischen Abspaltung mit strategischer Insolvenz“ aus dem IWH, wie das Problem Hypo Real Estate (HRE) bewältigt werden könnte, die auch in Berlin weiterentwickelt wurden. Aber die drastische Sicht der Dinge hat sich durchgesetzt. Wichtigste gegenwärtige Aufgabe wird es sein, künftige Übertreibungen beim Eingriff in die Marktkräfte – der Staat kann und darf alles – einzudämmen. Denn die Herausforderungen werden noch wachsen: Bleibt die bisherige Geldpolitik weitgehend unwirksam, dann wird sich die Frage nach dem Einsatz unkonventioneller Instrumente stellen, die im angelsächsischen Bereich bereits genutzt werden. Falls Staaten in Schieflage gerieten, müssten Summen bewegt werden, die ein Mehrfaches der Anstrengung zur Rettung der HRE betragen.
Artikel Lesen
Evaluating the German (New Keynesian) Phillips Curve
Rolf Scheufele
IWH Discussion Papers,
Nr. 10,
2008
Abstract
This paper evaluates the New Keynesian Phillips Curve (NKPC) and its hybrid
variant within a limited information framework for Germany. The main interest rests on the average frequency of price re-optimization of firms. We use the labor income share as the driving variable and consider a source of real rigidity by allowing for a fixed firm-specific capital stock. A GMM estimation strategy is employed as well as an identification robust method that is based upon the Anderson-Rubin statistic. We find out that the German Phillips Curve is purely forward looking. Moreover, our point estimates are consistent with the view that firms re-optimize prices every two to three quarters. While these estimates seem plausible from an economic point of view, the uncertainties around these estimates are very large and also consistent with perfect nominal price rigidity where firms never re-optimize prices. This analysis also offers some explanations why previous results for the German NKPC based on GMM differ considerably. First, standard GMM results are very sensitive to the way how orthogonality conditions are formulated. Additionally, model misspecifications may be left undetected by conventional J tests. Taken together, this analysis points out
the need for identification robust methods to get reliable estimates for the NKPC.
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Transport Costs and the Size of Cities: The Case of Russia
Albrecht Kauffmann
Volkswirtschaftliche Diskussionsbeiträge der Wirtschafts- und Sozialwissenschaftlichen Fakultät, Universität Potsdam, Nr. 93,
Nr. 93,
2007
Abstract
Real costs of freight transportation have strong increased in Russia particularly during the period of price liberalization 1992–93. This paper investigates possible connections between rising transport costs and the evolution of the size structure of the system of cities in the Russian Federation and its federal subjects. Empirical findings suggest that under conditions of a closed system agglomeration processes according to the predictions of the model of Tabuchi et al. (2005) would have taken place especially in the periphere regions of the North and Far East.
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Explaining Investment Trends in European Union Countries
Klaus Weyerstraß
IWH Discussion Papers,
Nr. 174,
2003
Abstract
In the 1980s and, in particular, in the 1990s the countries of the European Union experienced divergent developments of gross fixed capital formation. Estimating an investment function for a panel of ten countries and analyzing the paths of the determinants of investment in the countries under consideration reveals that the different development of final demand is the main factor responsible for the divergences in investment. Other factors are disparities in the decline of real interest rates and of relative prices for capital goods.
Artikel Lesen
Real Currency Appreciation, the Law of One Price and Growth in CEE Countries in Perspective of EU Membership
Hubert Gabrisch
Polish Economic Society: Meeting the Convergence Criteria of EMU: Problems of Countries in Transition,
1997
Abstract
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