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Semiparametric modelling of the cross-section of expected returns in the German stock market
Stehle, Richard; Bunke, Olaf; Sommerfeld, Volker - 1997
partial correlation with the stock return. In most of the annual regressions the corresponding coefficients have the correct …
Persistent link: https://www.econbiz.de/10009661022
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Weekday dependence of German stock market returns
Herwartz, Helmut - 1999
The so-called 'Monday effect ' has been found for various stock markets of the world. The empirical finding that Monday … exchange the paper compares estimation results of parametric and nonparametric autoregressive models with respect to possible … against time varying means and correlation of return data in parametric models and to obtain confidence bands for …
Persistent link: https://www.econbiz.de/10009580468
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Bayesian estimation of NIG-parameters by Markov Chain Monte Carlo Methods
Lillestøl, Jostein - 2000 - Rev.
alternative for modelling financial data exhibiting skewness and fat tails. In this paper we explore the Bayesian estimation of …
Persistent link: https://www.econbiz.de/10009612011
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Stock performance around share repurchase announcements in Germany
Seifert, Udo (contributor) - 2003 - [Elektronische Ressource], draft
Persistent link: https://www.econbiz.de/10001917087
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Common factors governing VDAX movements and the maximum loss
Härdle, Wolfgang; Schmidt, Peter - 2000
Based on daily VDAX data this paper analyzes the factors governing the movements of implied volatilities of options on the German stock index DAX. Using Principal Components Analysis over the sample period from 1996 to 1997, we derive common factors representing "shift" and "curvature" of the...
Persistent link: https://www.econbiz.de/10009612026
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Manipulation in political stock markets : preconditions and evidence
Hansen, Jan; Schmidt, Carsten; Strobel, Martin - 2001
Political stock markets (PSM) are sometimes seen as substitutes for opinion polls. On the bases of a behavioral model, specific preconditions were drawn out under which manipulation in PSM can weaken this argument. Evidence for manipulation is reported from the data of two separate PSM during...
Persistent link: https://www.econbiz.de/10009614875
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Ergodic fluctuations in a stock market model with interacting agents : the mean field case
Horst, Ulrich - 1999
We consider a financial market model with interacting agents and study the long run behaviour of both aggregate behaviour and equilibrium prices. Investors are heterogeneous in their price expectations and they get stochastic signals about the "mood" of the market described by the empirical...
Persistent link: https://www.econbiz.de/10009582400
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Financial price fluctuations in a stock market model with many interacting agents
Horst, Ulrich - 2001
We consider a financial market model with a large number of interacting agents. Investors are heterogeneous in their expectations about the future evolution of an asset price process. Their current expectation is based on the previous states of their "neighbors" and on a random signal about the...
Persistent link: https://www.econbiz.de/10009613599
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Adaptive estimation for a time inhomogeneous stochastic-volatility model
Härdle, Wolfgang; Spokojnyj, Vladimir G.; Teyssière, … - 2000
problem of online estimation of current values of w = w(T) and a = a(T) from the observations SI , ... ,ST. We propose an … adaptive method of estimation which does not use any information about time homogeneity of the obscured process. We apply this …
Persistent link: https://www.econbiz.de/10009582392
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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