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We compare more than 1000 different volatility models in terms of their fit to the historical ISE-100 Index data and their forecasting performance of the conditional variance in an out-of-sample setting. Exponential GARCH model of Nelson (1991) with “constant mean, t-distribution, one lag...
Persistent link: https://www.econbiz.de/10013159436
suitable for model identification. The BDS test and the modified version are compared numerically. To enable fair power …A test for serial independence is proposed which is related to the BDS test but focuses on tail event probabilities … rather than probabilities near the center of the distribution. The motivation behind this approach is to obtain a test more …
Persistent link: https://www.econbiz.de/10011327543
In this paper, we provide evidence on two alternative mechanisms of interaction between returns and volatilities: the leverage effect and the volatility feedback effect. We stress the importance of distinguishing between realized volatility and implied volatility, and find that implied...
Persistent link: https://www.econbiz.de/10013128856
. (2) It is possible to provide a complete characterization of the asymptotic distribution of the QML estimator based on …
Persistent link: https://www.econbiz.de/10012723834
methodology followed is the test hypothesis with bootstrap simulated t-statistics. A seasonality test is to investigate if there …
Persistent link: https://www.econbiz.de/10013052188
the so-called tail dependence coefficient (TDC). We present a nonparametric estimator of the tail dependence and further …, the point estimation is complemented with an hypotheses test. We find significant tail dependence in electricity prices …
Persistent link: https://www.econbiz.de/10013061544
instruments affected by convexity. The aim of this paper is to introduce and describe a test that can be used to assess whether …
Persistent link: https://www.econbiz.de/10012946977
An "explosion moment" is a large movement in the market that can be caused by fundamental changes or the normal dynamic of some assets. These movements can be difficult to navigate and can lead to poor investment decisions. There are two types of events that can cause explosion moments:...
Persistent link: https://www.econbiz.de/10014255050
tricity under the hypothesis that there is no endogeneity, based on which we propose a test and document that this endogeneity …
Persistent link: https://www.econbiz.de/10013095254
Purpose: This paper examines the associative and causal relationship between changes in the implied volatility index (VIX) and stock market returns, with data from 15 countries representing both developed and emerging economies.1 We also examine the dynamic variation, if any in the nature of the...
Persistent link: https://www.econbiz.de/10012219567