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size and book-to-market ratio capture the cross-sectional variation of US stock returns better than other combinations of …/French for US stock returns is almost the best one in Germany. The book-to-market-ratio turns out to be the variable with highest … 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
returns are significantly smaller than returns measured for the remaining days of the week calls the efficiency hypothesis for … 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
that stock splits are associated with abnormal returns on both the announcement and the execution day, and additionally …. Consistently, abnormal returns around the announcement day are much lower in Germany than in the U.S. Although a significant … tradeto-trade returns increases the significance of abnormal returns but the difference between alternative return measurement …
Persistent link: https://www.econbiz.de/10009580473
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
Persistent link: https://www.econbiz.de/10001917087
-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
We study an extension of the classical B1ack-Scholes model which accounts for feedback effects from trading in an imperfectly elastic market. The proposed semi-martingale model may be viewed as a compromise between the diffusion approach in, e.g., (Cuoco and Cvitanic 1998), (Cvitanic and Ma...
Persistent link: https://www.econbiz.de/10009580477
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
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
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