Risikoaufschläge für Staatsschulden. Ergebnis von Unsicherheit oder von (akkumulierten) Defiziten?
Toralf Pusch
Zur aktuellen Finanz-, Wirtschafts- und Schuldenkrise. Schriften der Keynes-Gesellschaft, Band 6,
2013
Abstract
Mit Beginn der Finanzkrise 2008 wurde quer durch Europa die antizyklische Fiskalpolitik als Mittel zur Krisenbekämpfung wiederentdeckt. Nach dieser vielleicht wenig überraschenden Renaissance der Fiskalpolitik ist die ökonomische Mehrheitsmeinung inzwischen wieder weitaus skeptischer im Hinblick auf keynesianische Politik. Mittlerweile ist die These sehr verbreitet, es seien die aus dem Ruder gelaufenen Staatsfinanzen in den südlichen Mitgliedsländern (Griechenland, Portugal, Spanien, Italien, ergänzt um das nördlichere Irland), welche die Eurozone in die schärfste Krise seit ihrem Bestehen geführt haben. Als Gradmesser der „Schuldenkrise“ werden dabei im Allgemeinen die steigenden Finanzierungskosten (Risikoaufschläge der Staatsschuldentitel im Vergleich zu deutschen Staatsschulden) in den betroffenen Ländern angeführt. Die in diesem Beitrag vertretene Sichtweise ist hingegen, dass ein wesentlicher Grund für die erhöhten staatlichen Finanzierungskosten in der Zunahme der Unsicherheit an den Finanzmärkten zu sehen ist.
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The GVAR Handbook: Structure and Applications of a Macro Model of the Global Economy for Policy Analysis
Filippo di Mauro, M. Hashem Pesaran
Oxford University Press,
2013
Abstract
The recent crisis has shown yet again how the world economies are globally interlinked, via a complex net of transmission channels. When it comes, however, to build econometric frameworks aimed at analysing such linkages, modellers are faced with what is called the "curse of dimensionality": there far too many parameters to be estimated with respect to the available observations. The GVAR, a VAR based model of the global economy, offers a solution to this problem. The basic model is composed of a large number of country specific models, comprising domestic, foreign and purely global variables. The foreign variables, however, are treated as weakly exogenous. This assumption, which is typically held when empirically tested for virtually all economies - with the notable exception of the US which is treated differently - allows to estimate first the individual country models separately. Only in a second stage country-specific models are simultaneously solved, thus allowing global interactions.This volume presents - for a first time in a compact and rather easy to read format - principles and structure of the basic GVAR model and a number of its many applications and extensions developed in the last few years by a growing literature. Its main objective is to show how powerful the model can be as a tool for forecasting and scenario analysis. The clear modelling structure of the GVAR appeals to policy makers and practitioners as shown by its growing use among major institutions, as well as by econometricians, as shown by the main extensions and applications.
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Predicting Financial Crises: The (Statistical) Significance of the Signals Approach
Makram El-Shagi, Tobias Knedlik, Gregor von Schweinitz
Journal of International Money and Finance,
No. 35,
2013
Abstract
The signals approach as an early-warning system has been fairly successful in detecting crises, but it has so far failed to gain popularity in the scientific community because it cannot distinguish between randomly achieved in-sample fit and true predictive power. To overcome this obstacle, we test the null hypothesis of no correlation between indicators and crisis probability in three applications of the signals approach to different crisis types. To that end, we propose bootstraps specifically tailored to the characteristics of the respective datasets. We find (1) that previous applications of the signals approach yield economically meaningful results; (2) that composite indicators aggregating information contained in individual indicators add value to the signals approach; and (3) that indicators which are found to be significant in-sample usually perform similarly well out-of-sample.
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Gauging the Effects of Fiscal Stimulus Packages in the Euro Area
Mathias Trabandt, Roland Straub, Günter Coenen
Journal of Economic Dynamics and Control,
No. 2,
2013
Abstract
We seek to quantify the impact on euro area GDP of the European Economic Recovery Plan (EERP) enacted in response to the financial crisis of 2008–2009. To do so, we estimate an extended version of the ECB's New Area-Wide Model with a richly specified fiscal sector. The estimation results point to the existence of important complementarities between private and government consumption and, to a lesser extent, between private and public capital. We first examine the implied present-value multipliers for seven distinct fiscal instruments and show that the estimated complementarities result in fiscal multipliers larger than one for government consumption and investment. We highlight the importance of monetary accommodation for these findings. We then show that the EERP, if implemented as initially enacted, had a sizeable, although short-lived impact on euro area GDP. Since the EERP comprised both revenue and expenditure-based fiscal stimulus measures, the total multiplier is below unity.
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Währung ohne Souverän: Zur Ursache und Überwindung der Euro-Krise
Hubert Gabrisch
Leviathan - Berliner Zeitschrift für Sozialwissenschaft,
No. 1,
2013
Abstract
Ich argumentiere, dass eine Währung einen Souverän braucht, um Stabilität auf den Finanzmärkten und in der Realwirtschaft zu sichern. Andernfalls würde eine Währungsunion über kurz oder lang zerfallen. Insofern ist die aktuelle Krise des Euro-Raums auf das Fehlen eines Souveräns zurückzuführen. Die Theorie des optimalen Währungsraums bringt keine Erkenntnisse zur Überwindung der Krise, weil sie die Separierung von Geld und Staat als Grundlage hat. Auch deshalb liefert sie eher eine Begründung für Reformen wie den Fiskalpakt, dem zufolge fiskalische Operationen von der Einschätzung der Finanzmärkte abhängen sollen. Ich zeige, wie der Fiskalpakt im Gegenteil zu einer tiefen Rezession und zu einer dauerhaften Kluft zwischen Gläubiger- und Schuldnerländern führen wird. Notwendig ist vielmehr eine Transformation der Währungsunion in einen souveränen Währungsraum, in dem eine effektive Koordination von Geld- und Fiskalpolitik zwischen einer EU-Finanzbehörde und der Zentralbank im Sinne einer funktionalen Fiskalpolitik möglich wird.
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The Role of Uncertainty in the Euro Crisis - A Reconsideration of Liquidity Preference Theory
Toralf Pusch
Journal of Post Keynesian Economics,
2013
Abstract
With the world financial crisis came the rediscovery of the active role fiscal policy could play in remedying the situation. More recently, the Euro Crisis, with its mounting funding costs facing governments of a number of Southern EU member states and Ireland, has called this strategy into question. Opposing this view, the main point of this contribution is to elaborate on the link between rising sovereign risk premia in the Eurozone and a major feature of the financial crisis - elevated uncertainty after the Lehman collapse. Theoretically, this link is developed with reference to Keynes' liquidity preference theory. The high explanatory power of rising uncertainty in financial markets and the detrimental effects of fiscal austerity on the evolution of sovereign risk spreads are demonstrated empirically by means of panel regressions and supplementary correlation analyses.
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Qual VAR Revisited: Good Forecast, Bad Story
Makram El-Shagi, Gregor von Schweinitz
Abstract
Due to the recent financial crisis, the interest in econometric models that allow to incorporate binary variables (such as the occurrence of a crisis) experienced a huge surge. This paper evaluates the performance of the Qual VAR, i.e. a VAR model including a latent variable that governs the behavior of an observable binary variable. While we find that the Qual VAR performs reasonably well in forecasting (outperforming a probit benchmark), there are substantial identification problems. Therefore, when the economic interpretation of the dynamic behavior of the latent variable and the chain of causality matter, the Qual VAR is inadvisable.
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Initial Evidence from a New Database on Capital Market Restrictions
Makram El-Shagi
Panoeconomicus,
No. 3,
2012
Abstract
One of the key obstacles to the empirical analysis of capital controls has been the unavailability of a detailed set of indicators for controls that cover a broad set of countries over a range of years. In this paper, we propose a new set of indicators derived from the Annual Reports on Exchange Arrangements and Export Restrictions. Contrary to most earlier attempts to construct control indicators from this source, our set of indices allows one to analyze the control intensity separately for inflow, outflow and repatriation controls. An additional set of indicators features information on the institutional design of controls. At first glance, the data show that the financial crisis caused a surge in capital market restrictions, most notably concerning the derivatives market. This reflex, which is not justified by the scarce empirical evidence on the success of controls, shows the importance of having a valid measure to allow an econometrically sound policy evaluation in this field. The data are available from the author upon request.
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Macroeconomic Imbalances as Indicators for Debt Crises in Europe
Tobias Knedlik, Gregor von Schweinitz
Journal of Common Market Studies,
No. 5,
2012
Abstract
European authorities and scholars published proposals on which indicators of macroeconomic imbalances might be used to uncover risks for the sustainability of public debt in the European Union. We test the ability of four proposed sets of indicators to send early-warnings of debt crises using a signals approach for the study of indicators and the construction of composite indicators. We find that a broad composite indicator has the highest predictive power. This fact still holds true if equal weights are used for the construction of the composite indicator in order to reflect the uncertainty about the origin of future crises.
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