Showing 1 - 10 of 7,817
Persistence is the speed with which a time series returns to its mean after a shock. Although several measures of … persistence have been proposed in the literature, when they are empirically applied, the different measures indicate incompatible … messages, as they differ both in the level and the implied evolution of persistence. One plausible reason why persistence …
Persistent link: https://www.econbiz.de/10015097148
applications. Using a PCC, multivariate data that exhibit complex patterns of dependence can be modeled using bivariate copulae as …
Persistent link: https://www.econbiz.de/10011755354
This chapter builds on previous work by Bhardwaj and Swanson (2004) who address the notion that many fractional I(d) processes may fall into the empty box" category, as discussed in Granger (1999). However, rather than focusing primarily on linear models, as do Bhardwaj and Swanson, we analyze...
Persistent link: https://www.econbiz.de/10010266365
This paper addresses the notion that many fractional I(d) processes may fall into the ?empty box? category, as discussed in Granger (1999). We present ex ante forecasting evidence based on an updated version of the absolute returns series examined by Ding, Granger and Engle (1993) that suggests...
Persistent link: https://www.econbiz.de/10010276818
We use data generated by a macroeconomic DSGE model to study the relative benefits of forecast combinations based on forecast-encompassing tests relative to simple uniformly weighted forecast averages across rival models. Assumed rival models are four linear autoregressive specifications, one of...
Persistent link: https://www.econbiz.de/10010294019
We study the benefits of forecast combinations based on forecast-encompassing tests relative to uniformly weighted forecast averages across rival models. For a realistic simulation design, we generate multivariate time-series samples of size 40 to 200 from a macroeconomic DSGE-VAR model....
Persistent link: https://www.econbiz.de/10010290999
fact around 1 in all specified models, which implies a high degree of persistence of this component. Finally, the order of …
Persistent link: https://www.econbiz.de/10014469660
of persistence, and also carries out appropriate break tests. Further, the possible co-movement of this index between …
Persistent link: https://www.econbiz.de/10012227629
standard information criteria, volatility persistence and the log likelihood statistic, showed that results improved with … of volatility breaks reduces the level of persistence in most of the models. The study recommends the incorporation of …
Persistent link: https://www.econbiz.de/10011482587
A flexible predictive density combination model is introduced for large financial data sets which allows for dynamic weight learning and model set incompleteness. Dimension reduction procedures allocate the large sets of predictive densities and combination weights to relatively small sets....
Persistent link: https://www.econbiz.de/10013356469