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Stock picking via nonsymmetrically pruned binary decision trees
Andriyashin, Anton V. (contributor) - 2008
Stock picking is the field of financial analysis that is of particular interest for many professional investors and researchers. In this study stock picking is implemented via binary classification trees. Optimal tree size is believed to be the crucial factor in forecasting performance of the...
Persistent link: https://www.econbiz.de/10003727376
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Stock picking via nonsymmetrically pruned binary decision trees
Andriyashin, Anton - 2008
Stock picking is the field of financial analysis that is of particular interest for many professional investors and researchers. In this study stock picking is implemented via binary classification trees. Optimal tree size is believed to be the crucial factor in forecasting performance of the...
Persistent link: https://www.econbiz.de/10010263732
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Wage Mobility in East and West Germany
Riphahn, Regina T.; Schnitzlein, Daniel - 2011
This article studies the long run patterns and explanations of wage mobility as a characteristic of regional labor markets. Using German administrative data we describe wage mobility since 1975 in West and since 1992 in East Germany. Wage mobility declined substantially in East Germany in the...
Persistent link: https://www.econbiz.de/10010294700
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Wage mobility in East and West Germany
Riphahn, Regina T.; Schnitzlein, Daniel D. - 2011
This article studies the long run patterns and explanations of wage mobility as a characteristic of regional labor markets. Using German administrative data we describe wage mobility since 1975 in West and since 1992 in East Germany. Wage mobility declined substantially in East Germany in the...
Persistent link: https://www.econbiz.de/10010286898
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Intangibles, can they explain the dispersion in return rates?
Görzig, Bernd; Gornig, Martin - 2010
It is argued that the observed return rates on capital at firm-level have an upward bias if firms are producing with unobserved intangible capital. Using EUKLEED, a comprehensive firm level data base for Germany, this theoretical preposition is proved empirically. Furthermore, making unobserved...
Persistent link: https://www.econbiz.de/10010292371
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A comparison of dynamic panel data estimators: Monte Carlo evidence and an application to the investment function
Behr, Andreas - 2003
In our analysis we discuss several dynamic panel data estimators proposed in the literature and assess their performance in Monte Carlo simulations. It is a well known fact that the natural choice, the least squares dummy variable estimator is biased in the context of dynamic estimation. The...
Persistent link: https://www.econbiz.de/10010295751
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Measuring business sector concentration by an infection model
Düllmann, Klaus - 2006
substantially increase the value-at-risk (VaR). The purpose of this paper is to analyze whether a tractable "infection model" can … provide a meaningful estimate of the impact of concentration risk on the VaR. I apply rather parsimonious data requirements … the real portfolio is mapped in order to obtain a simple solution for the VaR. The infection probability is calibrated for …
Persistent link: https://www.econbiz.de/10010295911
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Empirical risk analysis of pension insurance: the case of Germany
Schmieder, Christian; Reinschmidt, Timo; Mager, Ferdinand; … - 2006
With this paper we seek to contribute to the literature on pension insurance systems. The financial literature tends to focus exclusively on the US pension insurance system. This is the first major empirical study to address the German occupational pension insurance (PSVaG) plan in Germany. The...
Persistent link: https://www.econbiz.de/10010295914
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The Decline in German Output Volatility: A Bayesian Analysis
Liesenfeld, Roman; Hogrefe, Jens; Aßmann, Christian - 2005
Empirical evidence suggests a sharp volatility decline of the growth in U.S. gross domestic product (GDP) in the mid-1980s. Using Bayesian methods, we analyze whether a volatility reduction can also be detected for the German GDP. Since statistical inference for volatility processes critically...
Persistent link: https://www.econbiz.de/10010296255
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Anonymisierung von Unternehmensdaten: Ein Überblick und beispielhafte Darstellung anhand des Mannheimer Innovationspanels
Gottschalk, Sandra - 2002
Für Unternehmensdaten existieren im Gegensatz zu Personendaten keine einheitlichen Regeln zur Erstellung von Scientific-Use-Files, d.h. eines anonymisierten Datenfiles zur wissenschaftlichen Nutzung. Verschiedene Anonymisierungsmethoden werden hier vorgestellt. Um Mikrodaten einer breiten...
Persistent link: https://www.econbiz.de/10010298098