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theory but rather base the decision of the lag structure on a robust Lagrange Multiplier test. In contrast to U.S. data we … find that the volatility depends on either the interest rate level or information shocks but not on both. Finally, we … propose to describe the short term interest rate's dynamics by means of an AR(1) model with stochastic volatility. -- Term …
Persistent link: https://www.econbiz.de/10009578570
This paper describes a financial market modelling framework that exploits the notion of a deflator . The denominations of the deflator measured in units of primary assets form a minimal set of basic financial quantities that completely specify the overall market dynamics, where deflated asset...
Persistent link: https://www.econbiz.de/10009612031
models, such as discrete time series models, time-inhomogeneous diffusion models, stochastic volatility models, jump …
Persistent link: https://www.econbiz.de/10009621413
Habitat Theory of Modigliani and Sutch, a model for intertemporal preferences accounting for preferred habitats is proposed … term bonds to shorter instruments as the Preferred Habitat Theory predicts. …
Persistent link: https://www.econbiz.de/10009579171
This paper studies the smooth transition regression model where regressors are I(1) and errors are I(0). The regressors and errors are assumed to be dependent both serially and contemporaneously. Using the triangular array asymptotics, the nonlinear least squares estimator is shown to be...
Persistent link: https://www.econbiz.de/10009612025
capturing both of the typical characteristics of the short-term interest rate: volatility persistence and the dependence of … volatility on the level of the interest rate. The model also allows for regime switches whose presence has been a third central …
Persistent link: https://www.econbiz.de/10009612047
maturities and moneyness dimension is neglected. In this paper we propose to estimate the implied volatility surface at each … point in time nonparametrically and to analyze the implied volatility surface slice by slice with a common principal … study a p variate random vector of k groups, say the "volatility smile" at p different grid points of moneyness for k …
Persistent link: https://www.econbiz.de/10009613597
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
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
Multivariate Volatility Models belong to the class of nonlinear models for financial data. Here we want to focus on …
Persistent link: https://www.econbiz.de/10009615423