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Modeling the interdependence of volatility and inter-transaction duration processes
Grammig, Joachim; Wellner, Marc - 1999
-transaction duration process and vice versa. In order to solve the estimation problems implied by this interdependent formulation, we first … propose a GMM estimation procedure for the Autoregressive Conditional Duration model. The method is then extended to the … simultaneous estimation of the interdependent duration-volatility model. In an empirical application we utilize the model for an …
Persistent link: https://www.econbiz.de/10009579173
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Initial offerings of options
Müller, Sigrid M. - 2001
This paper considers the introduction of stock options in an (dynamically) incomplete securities market made up of a riskless bond and the stock. The stock price follows a geometric Brownian motion with constant drift. However, there is incomplete information about the unknown stochastic...
Persistent link: https://www.econbiz.de/10009613613
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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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The market reaction to stock splits : evidence from Germany
Wulff, Christian - 1999
Although stock splits seem to be a purely cosmetic event, there exists ample empirical evidence from the United States that stock splits are associated with abnormal returns on both the announcement and the execution day, and additionally with an increase in variance following the ex-day. This...
Persistent link: https://www.econbiz.de/10009580473
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Reappraising medfly longevity : a quantile regression survival analysis
Koenker, Roger; Geling, Olga - 1999
Chaudhuri, Doksum and Samarov (1997) have recently stressed the usefulness of the quantile regression formulation for survival analysis and for transformation models, more generally. In this paper, we explore the use of quantile regression in survival analysis by reanalysing a large experimental...
Persistent link: https://www.econbiz.de/10009580464
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On Markovian short rates in term structure models driven by jump-diffusion processes
Gapeev, P. V. (contributor); Küchler, U. (contributor) - 2003 - [Elektronische Ressource]
Persistent link: https://www.econbiz.de/10001917033
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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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Semiparametric diffusion estimation and application to a stock market index
Härdle, Wolfgang; Kleinow, Torsten; Korostelev, … - 2001
The analysis of diffusion processes in financial models is crucially dependent on the form of the drift and diffusion coefficient functions. A methodology is proposed for estimating and testing coefficient functions for ergodic diffusions that are not directly observable. It is based on...
Persistent link: https://www.econbiz.de/10009613611
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Malliavin's calculus in insider models : additional utility and free lunches
Imkeller, Peter - 2002
We consider simple models of financial markets with regular traders and insiders possessing some extra information hidden in a random variable which is accessible to the regular trader only at the end of the trading interval. The problems we focus on are the calculation of the additional utility...
Persistent link: https://www.econbiz.de/10009620768
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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