Are European Equity Style Indexes Mean Reverting? Testing the Validity of the Efficient Market Hypothesis
Marian Berneburg
IWH Discussion Papers,
No. 193,
2004
Abstract
The article tests for a random walk in European equity style indexes. After briefly
introducing the efficient market hypothesis, equity styles in general and the used
statistical techniques (Variance Ratio Test and modified Rescaled Range Test) it is
shown that a random walk in European equity style indexes cannot be rejected. At least in the period since the mid 70s, for which this research has been conducted, the weak form efficient market hypothesis seems to hold.
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Network Investment and the Threat of Regulation – Preventing Monopoly Exploitation or Infrastructure Construction?
Ulrich Blum, Christian Growitsch, Niels Krap
IWH Discussion Papers,
No. 7,
2006
Abstract
In summer 2005, the German telecommunication incumbent Deutsche Telekom announced its plans to build a new broadband fibre optics network. Deutsche Telekom decided as precondition for this new network not to be regulated with respect to pricing and third party access. To develop a regulator's strategy that allows investments and prevents monopolistic prices at the same time, we model an incumbent's decision problem under a threat of regulation in a game-theoretical context. The decision whether to invest or not depends on the probability of regulation and its assumed impact on investment returns. Depending on the incumbent's expectation on these parameters, he will decide if the investment is favourable, and which price to best set. This price is below a non-regulated profit maximising price, since the incumbent tries to circumvent regulation. Thus, we show that the mere threat of a regulator's intervention might prevent supernormal profits without actual price regulation. The regulator, on the other hand, can influence both investment decision and the incumbent's price via his signals on regulation probability and price. These signals an be considered optimal, if they simultaneously allow investment and minimize the incumbent's price.
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Cross-border Mergers in European Banking and Bank Efficiency: Discussion
Reint E. Gropp
Foreign Direct Investment in the Real and Financial Sector of Industrial Countries,
2003
Abstract
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Services strengthen macroeconomic relevance of manufacturing industry
Udo Ludwig, Hans-Ulrich Brautzsch, Brigitte Loose
Wirtschaftsdienst,
2011
Abstract
Gemäß der Drei-Sektoren-Hypothese verliert die Industrie mit steigenden Realeinkommen an gesamtwirtschaftlicher Bedeutung. Diese Tendenz wurde in der Vergangenheit anhand des Anteils der Wertschöpfung bzw. der Beschäftigung in der Industrie an der Gesamtwirtschaft gemessen und für Deutschland für die Jahrzehnte seit 1970 bestätigt. In diesem Beitrag sind dagegen die industriellen Endprodukte Ausgangspunkt der Untersuchung. Es wird mit Hilfe der Input-Output-Analyse gezeigt, dass sie aufgrund der zunehmenden Interdependenz zwischen Industrie und Dienstleistungssektor einen wachsenden Anteil der gesamtwirtschaftlichen Wertschöpfung absorbieren.
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Intergenerational Transmission of Unemployment - Evidence for German Sons
M. Mäder, Steffen Müller, Caroline Schwientek, Regina T. Riphahn
Jahrbücher für Nationalökonomie und Statistik,
No. 4,
2015
Abstract
This paper studies the association between the unemployment experience of fathers and their sons. Based on German survey data that cover the last decades we find significant positive correlations. Using instrumental variables estimation and the Gottschalk (1996) method we investigate to what extent fathers' unemployment is causal for offsprings' employment outcomes. In agreement with most of the small international literature we do not find a positive causal effect for intergenerational unemployment transmission. This outcome is robust to alternative data structures and to tests at the intensive and extensive margin of unemployment.
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Related Variety, Unrelated Variety and Regional Functions: A spatial panel approach
Matthias Brachert, Alexander Kubis, Mirko Titze
Papers in Evolutionary Economic Geography,
2013
Abstract
The paper presents estimates for the impact of related variety, unrelated variety and the functions a region performs in the production process on regional employment growth in Germany. We argue that regions benefit from the existence of related activities that facilitate economic development. Thereby the sole reliance of the related and unrelated variety concept on standard industrial classifications (SIC) remains debatable. We offer estimations for establishing that conceptual progress can be made when the focus of analysis goes beyond solely considering industries. We develop an industry-function based approach of related and unrelated variety and test our hypothesis by the help of spatial panel approach. Our findings suggest that related variety as same as unrelated variety facilitate regional employment growth in Germany. However, the drivers behind these effects do differ. While the positive effect of related variety is driven by high degrees of relatedness in the regional “R&D” and “White-Collar”-functions, the effects of unrelated variety are spurred by “Blue Collar”-functions in this period.
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Vergleich der Weiterbildungsaktivitäten von Arbeitslosen und Vollzeiterwerbstätigen
Birgit Schultz, Joachim Wilde
IWH Discussion Papers,
No. 9,
2007
Abstract
Die Analyse von Weiterbildungsaktivitäten nimmt in der empirischen Literatur breiten Raum ein. Die meisten Artikel betrachten dabei jedoch ausschließlich die Gruppe der Erwerbstätigen oder die Gruppe der Arbeitslosen. Direkte Vergleiche des Weiterbildungsvolumens der beiden Gruppen sind rar. Dort wiederum, wo sie vorgenommen werden, erfolgt der Vergleich nur sehr grob oder wird auf bestimmte Inhalte oder Formen der Weiterbildung beschränkt. Die vorliegende Arbeit schließt diese Lücke, indem auf der Basis der letzten Zeitbudgeterhebung des Statistischen Bundesamtes ein umfassender Vergleich des Volumens der Weiterbildungsaktivitäten von Arbeitslosen und Erwerbstätigen unter Einbeziehung aller Inhalte und Formen durchgeführt wird. Um sicherzustellen, dass dieser Vergleich nicht durch die unterschiedliche Zusammensetzung der beiden Gruppen verfälscht wird, wird mittels eines Matchingverfahrens aus den Erwerbstätigen eine Vergleichsgruppe konstruiert, die sich von den Arbeitslosen im Wesentlichen nur noch durch den Erwerbsstatus unterscheidet. Es zeigt sich, dass der Anteil derjenigen, die in irgendeiner Form Weiterbildung betreiben, unter den Arbeitslosen signifikant niedriger ist als er es bei hypothetischer Erwerbstätigkeit wäre. Hinsichtlich des Stundenumfangs ist durchschnittlich ein signifikant höherer Wert zu beobachten. Setzt man diesen allerdings ins Verhältnis zum für Weiterbildung zur Verfügung stehenden Zeitpotenzial, wird dieses bei Arbeitslosigkeit zu einem erheblich geringeren Anteil ausgeschöpft als bei Erwerbstätigkeit. Außerdem ist der höhere Stundenumfang ausschließlich bei allgemeiner Weiterbildung nachweisbar, während bei der beruflichen Weiterbildung außerhalb der Arbeitszeit keine signifikanten Unterschiede bestehen.
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Stock Market-Induced Currency Crises: A New Type of Twins
Stefan Eichler, Dominik Maltritz
Review of Development Economics,
No. 2,
2011
Abstract
This paper explores the link between currency crises and the stock market in emerging economies. By integrating foreign stock market investors in a currency crisis model, we reveal a new fundamental inconsistency as a potential crisis trigger: since emerging economies' stock markets often have high returns, whereas central bank reserves grow slowly or decline, the amount of reserves foreign investors can deplete when selling their stocks and repatriating the proceeds grows over time and is considerably higher than funds that have been invested in the stock market. Capital withdrawals of foreign stock market investors can trigger currency crises by depleting central bank reserves, particularly in successful countries with booming stock markets and large foreign investment.
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The Impact of Firm and Industry Characteristics on Small Firms’ Capital Structure
Hans Degryse, Peter de Goeij, Peter Kappert
Small Business Economics,
No. 4,
2012
Abstract
We study the impact of firm and industry characteristics on small firms’ capital structure, employing a proprietary database containing financial statements of Dutch small and medium-sized enterprises (SMEs) from 2003 to 2005. The firm characteristics suggest that the capital structure decision is consistent with the pecking-order theory: Dutch SMEs use profits to reduce their debt level, and growing firms increase their debt position since they need more funds. We further document that profits reduce in particular short-term debt, whereas growth increases long-term debt. We also find that inter- and intra-industry effects are important in explaining small firms’ capital structure. Industries exhibit different average debt levels, which is in line with the trade-off theory. Furthermore, there is substantial intra-industry heterogeneity, showing that the degree of industry competition, the degree of agency conflicts, and the heterogeneity in employed technology are also important drivers of capital structure.
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Crossing Networks Competition and Design
Hans Degryse, Mark Van Achter, Gunther Wuyts
Competition and Regulation in Network Industries,
No. 4,
2006
Abstract
In the past two decades, Alternative Trading Systems (ATSs) started to compete with traditional exchanges. Our paper focuses on one such system: a Crossing Network (CN). First, we discuss the distinct institutional aspects a CN offers compared to traditional markets. Next, we present an overview of the theoretical and empirical literature analyzing their success in competing with traditional markets. Finally, we offer some prospects on the potential outcome of this competition, taking into account market design issues such as the optimal degree of transparency of CNs. We also provide a market practioner’s view on the market design of CNs.
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