Econometric and Fuzzy Modelling of Indonesian Money Demand
Oliver Holtemöller, Noer Azam Achsani, Hizir Sofyan
Statistical Tools in Finance and Insurance,
2005
Abstract
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The liberalization of the German electricity market - a sucessful model?
Christian Growitsch, Felix Müsgens
Wirtschaft im Wandel,
No. 12,
2005
Abstract
Die öffentliche Debatte über die Entwicklung der deutschen Strompreise im Anschluß an die Liberalisierung der Energiemärkte 1998 wirft die Frage nach einem Scheitern der Umstrukturierung dieser Märkte auf. Die Analyse der Entwicklung der Strompreise für Haushaltskunden von 1998 bis 2005 zeigt, daß sich die aggregierten Preise heute auf etwa dem selben Niveau wie unmittelbar nach der Liberalisierung der deutschen Energiemärkte (-0,5%) bewegen. Eine solch generelle Betrachtung könnte jedoch aus zwei Gründen in die Irre führen. Einerseits gibt es erhebliche Unterschiede in der Preisentwicklung auf den einzelnen Wertschöpfungsstufen des Stromsektors. Die Erzeugungspreise haben im Zeitablauf beispielsweise eine deutliche Reduktion von ca. 25% erlebt, sind jedoch nach 2001 über ein wettbewerbliches Preisniveau gestiegen. Dem Vorwurf der industriellen Kraftwirtschaft, daß die Großhandelspreise für Strom überhöht seien, kann somit zwar nicht widersprochen werden; für ein grundsätzliches Scheitern der Energiemarktreformen spricht die beobachtbare Entwicklung allerdings auch nicht...
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Stochastische Unternehmensmodelle als Kern innovativer Ratingsysteme
Ulrich Blum, Werner Gleißner, Frank Leibbrand
IWH Discussion Papers,
No. 6,
2005
Abstract
In our paper, we analyze, based on a new rating methodology, 105 enterprises from Saxony with respect to their ability to meet their financial obligations. It is based on classical financial-statement approach, a direct inclusion of risk and a stochastic simulation model of enterprise development. The results show that the method used is superior to presently used approaches and that it extends our knowledge of enterprise development. On and above its Basel-II applicability, it is a tool to analyze individual development strategies of firms.
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Optimale Geld- und Währungspolitik in Südafrika – Modellierung und Schätzung
Tobias Knedlik
Berichte der Internationalen Wissenschaftliche Vereinigung Weltwirtschaft und Weltpolitik e.V. Vol. 15,
No. 161,
2005
Abstract
THE AIM OF THIS PAPER is to combine the estimation of the Monetary Conditions Index (MCI) with the theoretic modelling of monetary policy rules for open and emerging market economies using the example of South Africa. The idea that monetary policy is not only interested in optimal monetary conditions but also in external stability, constitutes the basis for the analysis. This idea emerged from studying currency crises that are caused by inadequate monetary policy and in particular from the experience of the Asian crisis of 1997/98 and its worldwide spread also to South Africa. The Monetary Conditions Index is a potentially useful tool for the development of monetary policy rules.
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The integration of imperfect financial markets: Implications for business cycle volatility
Claudia M. Buch, C. Pierdzioch
Journal of Policy Modeling,
No. 7,
2005
Abstract
During the last two decades, the degree of openness of national financial systems has increased substantially. At the same time, asymmetries in information and other financial market frictions have remained prevalent. We study the implications of the opening up of national financial systems in the presence of financial market frictions for business cycle volatility. In our empirical analysis, we show that countries with more developed financial systems have lower business cycle volatility. Financial openness has no strong impact on business cycle volatility, in contrast. In our theoretical analysis, we study the implications of the opening up of national financial markets and of financial market frictions for business cycle volatility using a dynamic macroeconomic model of an open economy. We find that the implications of opening up national financial markets for business cycle volatility are largely unaffected by the presence of financial market frictions.
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Financial Openness and Business Cycle Volatility
Claudia M. Buch, Jörg Döpke, C. Pierdzioch
Journal of International Money and Finance,
No. 5,
2005
Abstract
This paper discusses whether the integration of international financial markets affects business cycle volatility. In the framework of a new open economy macro-model, we show that the link between financial openness and business cycle volatility depends on the nature of the underlying shock. Empirical evidence supports this conclusion. Our results also show that the link between business cycle volatility and financial openness has not been stable over time.
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A note on GMM-estimation of probit models with endogenous regressors
Joachim Wilde
IWH Discussion Papers,
No. 4,
2005
Abstract
Dagenais (1999) and Lucchetti (2002) have demonstrated that the naive GMM estimator of Grogger (1990) for the probit model with an endogenous regressor is not consistent. This paper completes their discussion by explaining the reason for the inconsistency and presenting a natural solution. Furthermore, the resulting GMM estimator is analyzed in a Monte-Carlo simulation and compared with alternative estimators.
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Advances in macroeconometric modeling: Papers and Proceedings of the 4th IWH Workshop in Macroeconometrics
Christian Dreger
Schriften des IWH,
No. 19,
2005
Abstract
This volume contains the contributions to the 4th Workshop of the Halle Institute for Economic Research IWH (www.iwh-halle.de) in macroeconometrics held in November 2003. The workshop takes place every year and is especially designed for the presentation of new work in the field of applied research.
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Quality of Service, Efficiency, and Scale in Network Industries: An Analysis of European Electricity Distribution
Christian Growitsch, Tooraj Jamasb, Michael Pollitt
IWH Discussion Papers,
No. 3,
2005
Abstract
Quality of service is of major economic significance in natural monopoly infrastructure industries and is increasingly addressed in regulatory schemes. However, this important aspect is generally not reflected in efficiency analysis of these industries. In this paper we present an efficiency analysis of electricity distribution networks using a sample of about 500 electricity distribution utilities from seven European countries. We apply the stochastic frontier analysis (SFA) method on multi-output translog input distance function models to estimate cost and scale efficiency with and without incorporating quality of service. We show that introducing the quality dimension into the analysis affects estimated efficiency significantly. In contrast to previous research, smaller utilities seem to indicate lower technical efficiency when incorporating quality. We also show that incorporating quality of service does not alter scale economy measures. Our results emphasise that quality of service should be an integrated part of efficiency analysis and incentive regulation regimes, as well as in the economic review of market concentration in regulated natural monopolies.
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Langfristige Beschäftigungseffekte eines Ausbaus regenrativer Energien - Ergebnisse eines dynamischen disaggregierten Simulationsmodells
Joachim Ragnitz
External Publications,
2005
Abstract
Der Ausbau regenerativer Energien - Windkraft, Solarenergie, Erdwärmenutzung usw. - zählte mit zu einem der wichtigsten Ziele der Energiepolitik der früheren Bundesregierung. Zur Begründung wurden neben den primär energiepolitischen Zielen auch beschäftigungspolitische Ziele angeführt. Analysen des IWH mit Hilfe eines sektoral disaggregierten makroökonometrischen Modells zeigen indes, das mit spürbaren Beschäftigungseffekten auf lange Sicht nicht zu rechnen ist. Grund hierfür ist, daß die Finanzierungseffekte der Subventionen für den Sektor erneuerbarer Energien Beschäftigung in anderen Sektoren verdrängen. Dementsprechend kommt es zur Mehrbeschäftigung nur insoweit, als regenerative Energien aufgrund arbeitsintensiver Produktionsweise mit einem höheren Arbeitseinsatz hergestellt werden als verdrängte Produktionen.
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