Showing 151 - 160 of 706,700
of computational burden and estimation error. First the number of correlation coefficients to be estimated would grow … volatilities of stocks and implied volatility of the basket. To analyze this structure and the dynamics of the ICS we employ a …
Persistent link: https://www.econbiz.de/10009665551
It is argued that standard impulse response analysis based on vector autoregressive models has a number of shortcomings. Although the impulse responses are estimated quantities, measures for sampling variability such as confidence intervals are often not provided. If confidence intervals are...
Persistent link: https://www.econbiz.de/10009580485
series with a zero spectral density at some frequency. Estimation and inference can be performed using an Instrumental … an analysis of the comovement between Germany, Austria and the United Kingdom is presented. -- common feature analysis …
Persistent link: https://www.econbiz.de/10009612024
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/10011334849
We explore optimal hedge ratios and hedging effectiveness for the German electricity market. Given the increasing attention that wavelets received in the financial market, we concentrate on the investigation of the relationship, covariance/coherence evolution and hedge ratio analysis, on a...
Persistent link: https://www.econbiz.de/10011555959
and the short-run or transitory components of the volatility of daily stock market returns using bivariate mixture models …. For this purpose, the Standard bivariate mixture model of Tauchen and Pitts (1983) in which volatility and volume are … each endowed with their own dynamic behavior are allowed to direct volatility and volume. Since the latent information …
Persistent link: https://www.econbiz.de/10010407096
forecasting horizons. Therefore, a long memory volatility model compared to a short memory GARCH model does not appear to improve …
Persistent link: https://www.econbiz.de/10012910119
We propose semi-parametric CUSUM tests to detect a change point in the covariance structure of non-linear multivariate models with dynamically evolving volatilities and correlations. The asymptotic distributions of the proposed statistics are derived under mild conditions. We discuss the...
Persistent link: https://www.econbiz.de/10012945121
This paper proposes structured parametrizations for multivariate volatility models, which use spatial weight matrices … limits feasibility of model-estimation to small cross-sections for unstructured models. Structured parametrizations possess … parameters have a direct economic interpretation that reflects the chosen notion of economic classification; iv) model-estimation …
Persistent link: https://www.econbiz.de/10012719984
In many multivariate volatility models, the number of parameters increases faster than the cross-section dimension … even solve the curse of dimensionality problem. Identification and estimation of structured specifications are analyzed …
Persistent link: https://www.econbiz.de/10013095932