Showing 1 - 10 of 19
This paper considers observation driven models with conditional mean and variance dynamics for non-negative valued time series. The motivation is to relax the restriction imposed on the higher order moment dynamics in standard multiplicative error models driven only by the conditional mean...
Persistent link: https://www.econbiz.de/10012160740
We propose a novel approach to model serially dependent positive-valued variables which realize a non-trivial proportion of zero outcomes. This is a typical phenomenon in financial time series observed on high frequencies, such as cumulated trading volumes or the time between potentially...
Persistent link: https://www.econbiz.de/10010281483
Persistent link: https://www.econbiz.de/10011305259
We propose a novel approach to model serially dependent positive-valued variables which realize a non-trivial proportion of zero outcomes. This is a typical phenomenon in financial time series observed on high frequencies, such as cumulated trading volumes or the time between potentially...
Persistent link: https://www.econbiz.de/10008727350
This paper considers observation driven models with conditional mean and variance dynamics for non-negative valued time series. The motivation is to relax the restriction imposed on the higher order moment dynamics in standard multiplicative error models driven only by the conditional mean...
Persistent link: https://www.econbiz.de/10012696263
modelling bias and estimation (in)efficiency. In forecasting, the proposed adaptive approach significantly outperforms a MEM … where local estimation windows are fixed on an ad hoc basis. …
Persistent link: https://www.econbiz.de/10010330969
The situation of a limited availability of historical data is frequently encountered in portfolio risk estimation …, especially in credit risk estimation. This makes it, for example, difficult to find temporal structures with statistical … selected macroeconomic variables. These findings may improve the estimation of risk measures such as the (portfolio) Value at …
Persistent link: https://www.econbiz.de/10010295926
The situation of a limited availability of historical data is frequently encountered in portfolio risk estimation …, especially in credit risk estimation. This makes it, for example, difficult to find temporal structures with statistical … selected macroeconomic variables. These findings may improve the estimation of risk measures such as the (portfolio) Value at …
Persistent link: https://www.econbiz.de/10005082806
modelling bias and estimation (in)efficiency. In forecasting, the proposed adaptive approach significantly outperforms a MEM … where local estimation windows are fixed on an ad hoc basis. …
Persistent link: https://www.econbiz.de/10010544325
We introduce a copula-based dynamic model for multivariate processes of (non-negative) high-frequency trading variables revealing time-varying conditional variances and correlations. Modeling the variables' conditional mean processes using a multiplicative error model we map the resulting...
Persistent link: https://www.econbiz.de/10010318750