Showing 1 - 10 of 183
The paper proposes a general asymmetric multifactor Wishart stochastic volatility (AMWSV) diffusion process which …
Persistent link: https://www.econbiz.de/10011256372
volatility models. We propose a continuous timefractionally integrated Wishart stochastic volatility (FIWSV) process. We derive …
Persistent link: https://www.econbiz.de/10011257492
volatility processes. This is called a GSSF-SV model. We show that conventional MCMC algorithms for this type of model are …
Persistent link: https://www.econbiz.de/10011256635
Kernel ridge regression is gaining popularity as a data-rich nonlinear forecasting tool, which is applicable in many different contexts. This paper investigates the influence of the choice of kernel and the setting of tuning parameters on forecast accuracy. We review several popular kernels,...
Persistent link: https://www.econbiz.de/10011255762
This paper considers a general class of stochastic dynamic choice models with discrete and continuous decision variables. This class contains a variety of models that are useful for modeling intertemporal household decisions under risk. Our examples are drawn from the field of development...
Persistent link: https://www.econbiz.de/10011256814
We propose a new approach to deal with structural breaks in time series models. The key contribution is an alternative dynamic stochastic specification for the model parameters which describes potential breaks. After a break new parameter values are generated from a so-called baseline prior...
Persistent link: https://www.econbiz.de/10011257521
process, at present this is not the case for the Heston stochastic volatility model, where the variance is modelled as a …
Persistent link: https://www.econbiz.de/10011255776
At the time of writing this article, Fourier inversion is the computational method of choice for a fast and accurate calculation of plain vanilla option prices in models with an analytically available characteristic function. Shifting the contour of integration along the complex plane allows for...
Persistent link: https://www.econbiz.de/10011256210
The characteristic functions of many affine jump-diffusion models, such as Heston’s stochastic volatility model and all …
Persistent link: https://www.econbiz.de/10011257149
The forward premium puzzle (FPP) is the negative correlation between the forward premium and the realized exchange rate return at maturities of a month and beyond. Some recent evidence shows that at maturities of multiple years and at the highest intra day frequency the correlation is positive...
Persistent link: https://www.econbiz.de/10011256149