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Als ein Teilbereich der Künstlichen Intelligenz stellt Machine Learning (ML) eine Schüsseltechnologie des 21. Jahrhunderts dar. Unter Nutzung der mathematisch-statistischen Verfahren sind technische Systeme realisierbar, die anhand von Daten eigenständig empirische Zusammenhänge erkennen und...
Persistent link: https://www.econbiz.de/10014433975
Machine Learning ist ein Forschungsfeld mit großen Potenzialen und weitreichenden Anwendungspotenzialen. Big Data kann dabei als Enabler angesehen werden, da große und qualitativ hochwertige Daten stets die Grundlage für erfolgreiche Machine Learning-Algorithmen und -Modelle darstellen....
Persistent link: https://www.econbiz.de/10014504476
behavioral bias is strongly time-varying, and is linked to equity market sentiment and higher moments of the risk-neutral density …. We _nd that our implied volatility (IV) sentiment measure, jointly derived from index and single stock options, explains … investors' overweight of tail events well. When employed within a trading strategy, our IV-sentiment measure delivers …
Persistent link: https://www.econbiz.de/10011586727
that this behavioral bias is strongly time-varying, linked to equity market sentiment, and higher moments of the risk …-neutral density. An implied volatility (IV) sentiment measure that is jointly derived from index and single stock options explains … investors' overweight of tail events the best. Our findings also suggest that IV-sentiment predicts equity markets reversals …
Persistent link: https://www.econbiz.de/10011589249
This paper investigates how biases in macroeconomic forecasts are associated with economic surprises and market responses across asset classes around US data announcements. We find that the skewness of the distribution of economic forecasts is a strong predictor of economic surprises, suggesting...
Persistent link: https://www.econbiz.de/10011903847
We show that the news is a rich source of data on distressed firm links that drive firm- level and aggregate risks. The news tends to report about links in which a less popular firm is distressed and may contaminate a more popular firm. This constitutes a contagion channel that yields...
Persistent link: https://www.econbiz.de/10012653445
We suggest an alternative use of disaggregate information to forecast the aggregate variable of interest, that is to include disaggregate information or disaggregate variables in the aggregate model as opposed to first forecasting the disaggregate variables separately and then aggregating those...
Persistent link: https://www.econbiz.de/10011604635
evolution of the persistence and predictability of inflation relative to a trend component. Using a standard sticky-price model …, we show that a more aggressive policy stance towards inflation causes a decline in inflation predictability, providing a …
Persistent link: https://www.econbiz.de/10011604870
Current best practice in central banking views a high level of monetary policy predictability as desirable. A clear … distinction, however, has to be made between short-term and longer-term predictability. While short-term predictability can be … broader, ultimately more meaningful concept of longerterm predictability also encompasses the ability of the private sector to …
Persistent link: https://www.econbiz.de/10011606235
In this paper we test the ability of three of the most popular methods to forecast the South African currency crisis of June 2006. In particular we are interested in the out-ofsample performance of these methods. Thus, we choose the latest crisis to conduct an out-of-sample experiment. In sum,...
Persistent link: https://www.econbiz.de/10010269920