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mechanism and multivariate generalized autoregressive conditional heteroskedasticity (GARCH) models. Using changes in volatility …) analysis. Such restrictions are typically just-identifying but can be checked by utilizing changes in volatility. This paper … reviews and contrasts the volatility models that have been used for this purpose. Three main approaches have been used …
Persistent link: https://www.econbiz.de/10010877668
panel data models with spatial autoregressive disturbances and heteroskedasticity of unknown form in the idiosyncratic error … heteroskedasticity of unknown form in the idiosyncratic error component. Finally, we derive a robust Hausman-test of the spatial random …
Persistent link: https://www.econbiz.de/10010877693
unknown heteroskedasticity in the innovations. We first generalize the generalized moments (GM) estimator suggested in …
Persistent link: https://www.econbiz.de/10005766296
For forecasting and economic analysis many variables are used in logarithms (logs). In time series analysis this transformation is often considered to stabilize the variance of a series. We investigate under which conditions taking logs is beneficial for forecasting. Forecasts based on the...
Persistent link: https://www.econbiz.de/10005051585
This paper generalizes the approach to estimating a first-order spatial autoregressive model with spatial autoregressive disturbances (SARAR(1,1)) in a cross-section with heteroskedastic innovations by Kelejian and Prucha (2008) to the case of spatial autoregressive models with spatial...
Persistent link: https://www.econbiz.de/10005406007
) heteroskedasticity and nonlinearity in the relation between the error-ridden covariate and another, error-free, covariate in the equation …
Persistent link: https://www.econbiz.de/10011122680
Natural gas is likely to become increasingly important in the future. Understanding the stochastic underpinnings of natural gas prices will be critical, both to policy analysts and to market participants. To this end, we investigate the potential presence of jumps in natural gas spot prices in...
Persistent link: https://www.econbiz.de/10010877967
This paper is concerned with carbon price volatility and the underlying causes of large price movements in the European … emissions trading market. Based on the application of a combined jump-GARCH model the behavior of EUA prices is characterized …. The jump-GARCH model explains the unsteady carbon price movement well and, moreover, shows that between 40 and 60 percent …
Persistent link: https://www.econbiz.de/10010948892
This paper is concerned with carbon price volatility and the underlying causes of large price movements in the European … emissions trading market. Based on the application of a combined jump-GARCH model the behavior of EUA prices is characterized …. The jump-GARCH model explains the unsteady carbon price movement well and, moreover, shows that between 40 and 60 percent …
Persistent link: https://www.econbiz.de/10010544182
, and Slovakia) using GARCH and TARCH models between 1999 and 2006. Despite these countries adopted inflation targeting … implied higher volatility of exchange rates when it substantially deviated from the implicit target rates for all countries …. Finally, we find significant asymmetric effects of the volatility of exchange rates in all analyzed countries. …
Persistent link: https://www.econbiz.de/10005765724