Showing 1 - 8 of 8
Conditional returns distributions generated by a GARCH process, which are important for many problems in market risk … moments of GARCH returns distributions in several ways: we consider a general GARCH model – the GJR specification with a … specific GARCH models largely used in practice are recovered as special cases; we derive the limits of these moments as the …
Persistent link: https://www.econbiz.de/10010838036
produced by GARCH-based models are excessive. Therefore we encourage hedgers to use a na ¨ive hedging strategy on the crack … majority of the existing literature, which favours the implementation of GARCH-based hedging strategies. …
Persistent link: https://www.econbiz.de/10010838053
We quantify and endogenize the model risk associated with quantile estimates using a maximum entropy distribution (MED) as benchmark. Moment-based MEDs cannot have heavy tails, however generalized beta generated distributions have attractive properties for popular applications of quantiles....
Persistent link: https://www.econbiz.de/10010838057
GARCH option pricing models have the advantage of a well-established econometric foundation. However, multiple states … need to be introduced as single state GARCH and even Levy processes are unable to explain the term structure of the moments … of financial data. We show that the continuous time version of the Markov switching GARCH(1,1) process is a stochastic …
Persistent link: https://www.econbiz.de/10008542351
This article analyzes the issue of American option valuation when the underlying exhibits a GARCH-type volatility …
Persistent link: https://www.econbiz.de/10008542373
Under the new capital accord stress tests are to be included in market risk regulatory capital calculations. This development necessitates a coherent and objective framework for stress testing portfolios exposed to market risk. Following recent criticism of stress testing methods our tests are...
Persistent link: https://www.econbiz.de/10005558290
This paper proposes a new model for autoregressive conditional heteroscedasticity and kurtosis. Via a time-varying degrees of freedom parameter, the conditional variance and conditional kurtosis are permitted to evolve separately. The model uses only the standard Student’s t density and...
Persistent link: https://www.econbiz.de/10005558309
GARCH processes constitute the major area of time series variance analysis hence the limit of these processes is of … considerable interest for continuous time volatility modelling. The limit of the GARCH(1,1) model is fundamental for limits of … other GARCH processes yet it has been the subject of much debate. The seminal work of Nelson (1990) derived this limit as a …
Persistent link: https://www.econbiz.de/10005178167