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Principal component analysis in an asymmetric norm
Tran, Ngoc Mai; Burdejová, Petra; Osipenko, Maria; … - 2016
PCA for expectiles. It can be seen as a dimension reduction tool for extreme value theory, where one approximates …
Persistent link: https://www.econbiz.de/10011550313
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GHICA - Risk Analysis with GH Distributions and Independent Components
Chen, Ying; Härdle, Wolfgang; Spokoiny, Vladimir - Sonderforschungsbereich Ökonomisches Risiko <Berlin> - 2006
Over recent years, study on risk management has been prompted by the Basel committee for regular banking supervisory. There are however limitations of some widely-used risk management methods that either calculate risk measures under the Gaussian distributional assumption or involve numerical...
Persistent link: https://www.econbiz.de/10005861240
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Modeling asset prices
Gentle, James E.; Härdle, Wolfgang - 2010
As an asset is traded, its varying prices trace out an interesting time series. The price, at least in a general way, reflects some underlying value of the asset. For most basic assets, realistic models of value must involve many variables relating not only to the individual asset, but also to...
Persistent link: https://www.econbiz.de/10003973644
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The stochastic fluctuation of the quantile regression curve
Härdle, Wolfgang (contributor); Song, Song (contributor) - 2008
Persistent link: https://www.econbiz.de/10003693057
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Flexible stochastic volatility structures for high frequency financial data
Feldmann, David; Härdle, Wolfgang; Hafner, Christian M.; … - 1998
Stochastic Volatility (SV) models are widely used in financial applications. To decide whether standard parametric restrictions are justified for a given dataset, a statistical test is required. In this paper, we develop such a test based on the linear state space representation. We provide a...
Persistent link: https://www.econbiz.de/10009578026
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The integration of credit default swap markets in the pre and post-subprime crisis in common stochastic trends
Chen, Cathy Yi-hsuan; Härdle, Wolfgang; Thu, Hien Pham - 2014
It was evident that credit default swap (CDS) spreads have been highly correlated during the recent financial crisis. Motivated by this evidence, this study attempts to investigate the extent to which CDS markets across regions, maturities and credit ratings have integrated more in crisis. By...
Persistent link: https://www.econbiz.de/10010399421
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Localising temperature risk
Härdle, Wolfgang; López Cabrera, Brenda; Okhrin, Ostap; … - 2010
On the temperature derivative market, modeling temperature volatility is an important issue for pricing and hedging. In order to apply pricing tools of financial mathematics, one needs to isolate a Gaussian risk factor. A conventional model for temperature dynamics is a stochastic model with...
Persistent link: https://www.econbiz.de/10008772624
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Time inhomogenous multiple volatility modeling
Härdle, Wolfgang; Herwartz, Helmut; Spokojnyj, Vladimir G. - In: Journal of financial econometrics : official journal of … 1 (2003) 1, pp. 55-95
Persistent link: https://www.econbiz.de/10002220931
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Statistical tools for finance and insurance
Čížek, Pavel (contributor); Härdle, Wolfgang (contributor) - 2005
-instructional book makes a good use of extensive examples and full explanations. Thedesign of the text links theory and computational … the Scale in the Gamma Family.- Pricing of Catastrophe (CAT) Bonds.- Extreme Value Theory - Modeling and Financial … Theory.- Diffusion Approximation in Risk Theory …
Persistent link: https://www.econbiz.de/10002123307
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Semiparametric diffusion estimation and application to a stock market index
Härdle, Wolfgang (contributor) - 2001
Persistent link: https://www.econbiz.de/10001595495