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In der vorliegenden Studie werden die sozialpolitischen Reformen in den USA und Kanada während der 1990er Jahren in einer vergleichenden Perspektive analysiert. Dabei wird insbesondere die Rolle steuerpolitischer Instrumentarien in den Reformen thematisiert und der Frage nachgegangen, ob sich hier ein neuer Typ von Wohlfahrtsstaat herausbildet. Im ersten Teil des Papiers wird das in der vergleichenden Wohlfahrtsstaatsforschung etablierte Modell des liberalen Wohlfahrtsstaats skizziert, um vor diesem Hintergrund die Reformen in den USA und Kanada zu untersuchen und zu vergleichen. Anschließend wird in einer breiteren vergleichenden Perspektive die out-put-Leistung der beiden Wohlfahrtsstaaten analysiert. Al normative Kriterien hierbei gilt in erster Linie die Umverteilungsfunktion sozialpolitischer Instrumentarien, hier in erster Linie verstanden als Einkommensumverteilung.
A version of this paper was originally written for a plenary session about "The Futures of Ethnography" at the 1998 EASA conference in Frankfurt/Main. In the preparation of the paper, I sent out some questions to my former fellow researchers by e-mail. I thank Douglas Anthony, Jan-Patrick Heiß, Alaine Hutson, Matthias Krings, and Brian Larkin for their answers.
We extend the important idea of range-based volatility estimation to the multivariate case. In particular, we propose a range-based covariance estimator that is motivated by financial economic considerations (the absence of arbitrage), in addition to statistical considerations. We show that, unlike other univariate and multivariate volatility estimators, the range-based estimator is highly efficient yet robust to market microstructure noise arising from bid-ask bounce and asynchronous trading. Finally, we provide an empirical example illustrating the value of the high-frequency sample path information contained in the range-based estimates in a multivariate GARCH framework.
The Box-Cox quantile regression model using the two stage method introduced by Chamberlain (1994) and Buchinsky (1995) provides an attractive extension of linear quantile regression techniques. However, a major numerical problem exists when implementing this method which has not been addressed so far in the literature. We suggest a simple solution modifying the estimator slightly. This modification is easy to implement. The modified estimator is still [square root] n-consistent and its asymptotic distribution can easily be derived. A simulation study confirms that the modified estimator works well.
Die vorliegende Fallstudie zu den Anciens Combattants in Diébougou ist das Ergebnis einer Lehrforschung der Johann Wolfgang Goethe-Universität, Frankfurt am Main, Institut für Historische Ethnologie, die vom 24. August 2001 bis zum 16. Dezember 2001 unter der Leitung von Prof. Carola Lentz, und der Betreuung durch Dr. Katja Werthmann, Dr. Richard Kuba sowie in Kooperation mit der Universität von Ouagadougou (Département d’Histoire et d’Archéologie) in Burkina Faso stattfand. Allen genannten Personen und Institutionen sei an dieser Stelle ausdrücklich gedankt. Die Fallstudie reichte ich im Februar 2004 als Magister-Abschlussarbeit am Fachbereich Geschichtswissenschaften (Historische Ethnologie) der Johann Wolfgang Goethe-Universität, Frankfurt am Main, bei Prof. Carola Lentz und Prof. Karl-Heinz Kohl ein. Der Großteil der ursprünglich im Anhang der Magisterarbeit enthaltenen Dokumente, Karten und Photos wurde ausgelagert, und der Text erfuhr eine geringfügige Überarbeitung. Im Anschluss an einen vierwöchigen Dioula-Sprachkurs in Bobo-Dioulasso folgte die dreimonatige Erhebungsphase in Diébougou, sowohl Hauptort (chef-lieu) der Provinz Bougouriba im Südwesten Burkina Fasos, Markt- als auch Verwaltungszentrum mit 11 637 Einwohnern (siehe http://www.ambf.bf/f_mairies.html). Interethnische Beziehungen, Siedlungsgeschichte und Bodenrecht waren die übergeordneten Themen des ethnologischen Teilprojekts A9 des Sonderforschungsbereichs 268 "Kulturentwicklung und Sprachgeschichte im Naturraum Westafrikanische Savanne" der Johann Wolfgang Goethe-Universität, der die Durchführung der Lehrforschung finanziell unterstützte, und dem ich gleichsam danken möchte.
This paper aims to analyze the impact of different types of venture capitalists on the performance of their portfolio firms around and after the IPO. We thereby investigate the hypothesis that different governance structures, objectives and track record of different types of VCs have a significant impact on their respective IPOs. We explore this hypothesis by using a data set embracing all IPOs which occurred on Germany's Neuer Markt. Our main finding is that significant differences among the different VCs exist. Firms backed by independent VCs perform significantly better two years after the IPO compared to all other IPOs and their share prices fluctuate less than those of their counterparts in this period of time. Obviously, independent VCs, which concentrated mainly on growth stocks (low book-to-market ratio) and large firms (high market value), were able to add value by leading to less post-IPO idiosyncratic risk and more return (after controlling for all other effects). On the contrary, firms backed by public VCs (being small and having a high book-to-market ratio) showed relative underperformance. Klassifikation: G10, G14, G24 . 29th January 2004 .
This paper sets out to analyze the influence of different types of venture capitalists on the performance of their portfolio firms around and after IPO. We investigate the hypothesis that different governance structures, objectives, and track records of different types of VCs have a significant impact on their respective IPOs. We explore this hypothesis using a data set embracing all IPOs that have occurred on Germany's Neuer Markt. Our main finding is that significant differences among the different VCs exist. Firms backed by independent VCs perform significantly better two years after IPO as compared to all other IPOs, and their share prices fluctuate less than those of their counterparts in this period of time. On the contrary, firms backed by public VCs show relative underperformance. The fact that this could occur implies that market participants did not correctly assess the role played by different types of VCs.
Earlier studies of the seigniorage inflation model have found that the high-inflation steady state is not stable under adaptive learning. We reconsider this issue and analyze the full set of solutions for the linearized model. Our main focus is on stationary hyperinflationary paths near the high-inflation steady state. The hyperinflationary paths are stable under learning if agents can utilize contemporaneous data. However, in an economy populated by a mixture of agents, some of whom only have access to lagged data, stable inflationary paths emerge only if the proportion of agents with access to contemporaneous data is sufficiently high. JEL Klassifikation: C62, D83, D84, E31
The papers in this volume were presented at the eleventh meeting of the Austronesian Formal Linguistics Association (AFLA 11), held from April 23-25 at the Zentrum für Allgemeine Sprachwissenschaft, Berlin, Germany. The conference was organized by Hans-Martin Gärtner, Joachim Sabel, and myself, as part of the research project Clause Structure and Adjuncts in Austronesian Languages. We gratefully acknowledge the financial support by the German Research Foundation (Deutsche Forschungsgemeinschaft). We would like to thank Wayan Arka, Agibail Cohn, Laura Downing, Silke Hamann, S J Hannahs, Ray Harlow, Nikolaus Himmelmann, Yuchua E. Hsiao, Lillian Huang, Ed Keenan, Glyne Piggott, Charles Randriamasimanana, Joszef Szakos, Barbara Stiebels, Jane Tang, Lisa Travis, Noami Tsukido, Sam Wang, Elizabeth Zeitoun, Kie Ross Zuraw, and Marzena Zygis for reviewing the abstracts. We are thankful to Mechthild Bernhard, Jenny Ehrhardt, Fabienne Fritzsche, Theódóra Torfadóttir and Tue Trinh for their help during the conference. I would like to thank Theódóra for providing essential editorial assistance.