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This discussion paper led to a publication in the <I>Electronic Journal of Statistics</I> (2014). Vol. 8, pages 1088-1112.<P> We characterize the dynamic properties of Generalized Autoregressive Score (GAS) processes by identifying regions of the parameter space that imply stationarity and ergodicity. We...</p></i>
Persistent link: https://www.econbiz.de/10011256295
repressing type). For the coefficient estimation steps an additional penalty is set on top of the lasso penalty, similarly to Li … sensitivity and specificity of non-zero covariate coefficients, estimation of network connection signs, and prediction performance …
Persistent link: https://www.econbiz.de/10011257605
Estimation of the volatility of time series has taken off since the introduction of the GARCH and stochastic volatility … unobserved stochastic volatility, and the varying approaches that have been taken for such estimation. In order to simplify the … comprehension of these estimation methods, the main methods for estimating stochastic volatility are discussed, with focus on their …
Persistent link: https://www.econbiz.de/10011257075
Estimation of the volatility of time series has taken off since the introduction of the GARCH and stochastic volatility … unobserved stochastic volatility, and the varying approaches that have been taken for such estimation.In order to simplify the … comprehension of these estimation methods, the main methods for estimating stochastic volatility are discussed, with focus on their …
Persistent link: https://www.econbiz.de/10011257295
orhistorical and Monte Carlo simulation methods. Although these approaches to overall VaR estimation have receivedsubstantial … proposed estimation approach pairs intuitiveappeal with computational efficiency. We evaluate various alternative estimation …
Persistent link: https://www.econbiz.de/10011256282
over time and where possible serial correlation is modeled via stochastically time-varying intensities of the underlying … extension of numerically accelerated importance sampling techniques. We illustrate the new model by two empirical studies and …
Persistent link: https://www.econbiz.de/10011256555
We investigate the added value of combining density forecasts for asset return prediction in a specific region of support. We develop a new technique that takes into account model uncertainty by assigning weights to individual predictive densities using a scoring rule based on the censored...
Persistent link: https://www.econbiz.de/10011256566
Patton and Timmermann (2012, 'Forecast Rationality Tests Based on Multi-Horizon Bounds', <I>Journal of Business & Economic Statistics</I>, 30(1) 1-17) propose a set of useful tests for forecast rationality or optimality under squared error loss, including an easily implemented test based on a...</i>
Persistent link: https://www.econbiz.de/10011256590
This discussion paper resulted in a publication in the 'SIAM Journal on Optimization', 2007, 18, 290-308. <P> In this paper we present two general results on the existence of a discrete zero point of a function from the n-dimensional integer lattice Zn to the n-dimensional Euclidean space Rn. Under...</p>
Persistent link: https://www.econbiz.de/10011256600
. They are applicable to the complete class of observation driven models and are valid for a wide range of estimation …
Persistent link: https://www.econbiz.de/10011256671