Vorteile einer niedrigen Inflationsrate: Empirische Ergebnisse für den Euroraum
Juliane Scharff
Wirtschaft im Wandel,
No. 10,
2010
Abstract
Der Vorschlag des Chefvolkswirts des Internationalen Währungsfonds, Olivier Blanchard, das Inflationsziel auf vier Prozent anzuheben, hat eine lebhafte Debatte über die angemessene Höhe der Zielinflationsrate entfacht. Dabei ist keineswegs offensichtlich, dass der durch höhere Inflationsraten größere Spielraum in Bezug auf Leitzinssenkungen in Krisenzeiten auch zu einem volkswirtschaftlichen Mehrwert führt. Insbesondere sind die mit einer höheren Inflationsrate einhergehenden volkswirtschaftlichen Kosten nicht zu vernachlässigen. So ist zum Beispiel die Variabilität der relativen Preise tendenziell umso größer, je höher die Inflationsrate ist. Dadurch wird die Signal-und Lenkungsfunktion relativer Preisänderungen beeinträchtigt, und dies hat negative Folgen für die effiziente Allokation von Ressourcen. Diese Studie untersucht im Rahmen einer empirischen Analyse den Einfluss der Inflation auf die Schwankungen der relativen Preise für den Euroraum. Sie kann einen signifikanten positiven Zusammenhang zwischen Inflation und Variabilität der relativen Preise feststellen. Damit liefert sie empirische Evidenz für einen störenden Einfluss von Inflation auf die relativen Preise und folglich für negative realwirtschaftliche Effekte von Inflation. Die Ergebnisse sprechen für eine Geldpolitik moderater Inflationsraten.
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Interest Rate Convergence in the Euro-Candidate Countries: Volatility Dynamics of Sovereign Bond Yields
Hubert Gabrisch, Lucjan T. Orlowski
Emerging Markets Finance and Trade,
2010
Abstract
We argue that a “static“ specification of the Maastricht criterion for long-term bond yields is not conducive to assessing stability of financial systems in euro-candidate countries. Instead, we advocate a dynamic approach to assessing interest rate convergence to a common currency that is based on the analysis of financial system stability. Accordingly, we empirically test volatility dynamics of the ten-year sovereign bond yields of the 2004 EU accession countries in relation to the eurozone yields during the January 2, 2001-January 22, 2009, sample period. Our results show a varied degree of the relationship between domestic and eurozone sovereign bond yields, the most pronounced for the Czech Republic, Slovenia, and Poland, and weaker for Hungary and Slovakia. We find some divergence of relative bond yields since the EU accession.
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German Economy Recovers Surprisingly Quickly from Last Year’s Recession
Wirtschaft im Wandel,
No. 9,
2010
Abstract
The German economy recovers surprisingly quickly from last year’s recession. For this year, we expect GDP to grow by 3.5%. Next year, when GDP growth should reach a rate of 2%, the general government deficit is likely to fall below the 3% mark of the Stability and Growth pact – if the government indeed realizes the stabilization program it decided on this summer. Unemployment will continue to decline.
We see three main causes for this favorable development: first, the German economy benefits strongly from the high growth dynamics in emerging markets, since German firms are well positioned for producing investment goods that are particularly sought-after in these countries. Second, growing demand for labor in Germany means that employment and labor income is on the rise. Partly, this is the reward for a long time of low wage rises that have made labor in Germany competitive again. Third, the expansive monetary policy in the euro area is particularly stimulating since here debt levels of private households and firms are moderate and therefore do not dampen the stimulating effects of low interest rates, as they do in many euro area partner countries with highly indebted private and public agents.
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Has the Euro Increased International Price Elasticities?
Oliver Holtemöller, Götz Zeddies
IWH Discussion Papers,
No. 18,
2010
published in: Empirica
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, Durbin, and Evans (1975) and Zeileis (2004), Nyblom (1989) and Hansen (1992), and Andrews, Lee, and Ploberger (1996). Power and size properties are derived using Monte Carlo simulations. Results emphasize that mostly the CUSUM type tests are affected by the presence of heteroscedasticity, whereas the individual parameter Nyblom test and AvgLM test are proved to be highly robust. However, each test is significantly affected by leptokurtosis. Contrarily to other tests, where skewness is far more problematic than kurtosis, it has no additional effect for any of the endogenous break tests we analyze. Concerning overall robustness the Nyblom test performs best, while being almost on par to more recently developed tests in terms of power.
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The Extreme Risk Problem for Monetary Policies of the Euro-Candidates
Hubert Gabrisch, Lucjan T. Orlowski
Abstract
We argue that monetary policies in euro-candidate countries should also aim at mitigating excessive instability of the key target and instrument variables of monetary policy during turbulent market periods. Our empirical tests show a significant degree of leptokurtosis, thus prevalence of tail-risks, in the conditional volatility series of such variables in the euro-candidate countries. Their central banks will be well-advised to use both standard and unorthodox (discretionary) tools of monetary policy to mitigate such extreme risks while steering their economies out of the crisis and through the euroconvergence process. Such policies provide flexibility that is not embedded in the Taylor-type instrument rules, or in the Maastricht convergence criteria.
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