Showing 1 - 10 of 26
This paper derives results for the temporal aggregation of multivariate GARCH processes in the general vector … specification. It is shown that the class of weak multivariate GARCH processes is closed under temporal aggregation. Fourth moment …. Forecasting volatility, it is generally advisable to aggregate forecasts of the disaggregate series rather than forecasting the …
Persistent link: https://www.econbiz.de/10004972260
mean, to examine asymmetry and leverage in volatility, and to examine the effects of temporal and spatial aggregation. The … choice of data frequency or spatial aggregation will not lead to robust findings as they are generally not independent of the … level of aggregation used. …
Persistent link: https://www.econbiz.de/10008584742
substantial bias if both the initial degree of persistence and the aggregation level are high. In other cases, QML might be taken …
Persistent link: https://www.econbiz.de/10004991145
In this paper we investigate empirical specification of smooth transition error correction models (STECMs). These models can be used to describe linear long-run relationships between nonstationary variables where adjustment towards equilibrium is nonlinear and can depend on exogenous variables....
Persistent link: https://www.econbiz.de/10008584808
take account of them in estimating and forecasting IV. This paper investigates through Monte Carlo simulations the effects … of RV errors on estimating and forecasting IV with RV data. It is found that: (i) neglecting RV errors can lead to …
Persistent link: https://www.econbiz.de/10008833191
This article proposes a modified method for the construction of diffusion indexes in macroeconomic forecasting using …
Persistent link: https://www.econbiz.de/10004972197
With the advent of advanced data collection techniques, there is an increased interest in using econometric models to support decisions in marketing. Due to the sometimes specific nature of variables in marketing, the discipline uses econometric models that are rarely, if ever, used elsewhere....
Persistent link: https://www.econbiz.de/10004972205
Many companies collect stated preference data (SP) like intentions and satisfaction as well as revealed preference data (RP) like actual purchasing behavior. It seems relevant to examine the predictive usefulness of this information for future revealed preferences, that is, customer behavior. In...
Persistent link: https://www.econbiz.de/10004972221
forecasting study. We include both single equation and multiple equation methods. A VAR model in first differences with and …
Persistent link: https://www.econbiz.de/10004972225
Experts may have domain-specific knowledge that is not included in a statistical model and that can improve forecasts. While one-step-ahead forecasts address the conditional mean of the variable, model-based forecasts for longer horizons have a tendency to convert to the unconditional mean of a...
Persistent link: https://www.econbiz.de/10004972226