Showing 1 - 10 of 203
This article contains a review of multivariate GARCH models. Most common GARCH models are presented and their properties considered. This also includes nonparametric and semiparametric models. Existing specification and misspecification tests are discussed. Finally, there is an empirical example...
Persistent link: https://www.econbiz.de/10005114123
We present and evaluate a numerical optimization method (together with an algorithm for choosing the starting values) pertinent to the constrained optimization problem arising in the estimation of the GARCH models with inequality constraints, in particular the Simplified Component GARCH Model...
Persistent link: https://www.econbiz.de/10009421016
The dynamic dependencies in financial market volatility are generally well described by a long-memory fractionally … integrated process. At the same time, the volatility risk premium, defined as the difference between the ex-post realized … volatility and the market’s ex-ante expectation thereof, tends to be much less persistent and well described by a short …
Persistent link: https://www.econbiz.de/10009399368
Kernel ridge regression is gaining popularity as a data-rich nonlinear forecasting tool, which is applicable in many different contexts. This paper investigates the influence of the choice of kernel and the setting of tuning parameters on forecast accuracy. We review several popular kernels,...
Persistent link: https://www.econbiz.de/10010851278
high volatility regimes. …
Persistent link: https://www.econbiz.de/10009148813
The aim of this work is to provide fast and accurate approximation schemes for the Monte Carlo pricing of derivatives in LIBOR market models. Standard methods can be applied to solve the stochastic differential equations of the successive LIBOR rates but the methods are generally slow. Our...
Persistent link: https://www.econbiz.de/10008462032
Risk premia between spot and forward prices play a key role in energy markets. This paper derives analytic expressions for such risk premia when spot prices are modelled by Lévy semistationary processes. While the relation between spot and forward prices can be derived using classical...
Persistent link: https://www.econbiz.de/10010851272
We introduce tractable models for commodity derivatives pricing with inventory and volatility effects, and illustrate … previous literature uses futures data for investigating the relationship between inventory and volatility, we use the … volatility. …
Persistent link: https://www.econbiz.de/10009652368
Stock market volatility clusters in time, carries a risk premium, is fractionally integrated, and exhibits asymmetric … shapes and patterns in the sample autocorrelations of the volatility and the volatility risk premium, and the dynamic cross …-correlations of the volatility measures with the returns calculated from actual high-frequency intra-day data on the S&P 500 aggregate …
Persistent link: https://www.econbiz.de/10005787548
This paper proposes a method for constructing a volatility risk premium, or investor risk aversion, index. The method … option-implied volatility measures. A small-scale Monte Carlo experiment confirms that the procedure works well in practice … volatilities indicates significant temporal dependencies in the estimated stochastic volatility risk premium, which we in turn …
Persistent link: https://www.econbiz.de/10005114112