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A model-free methodology is used for the first time to estimate a daily volatility index (VIBEX-NEW) for the Spanish financial market.We use a public data set of daily option prices to compute this index and showthat daily changes in VIBEXNEW display a negative, tight contemporaneous...
Persistent link: https://www.econbiz.de/10010333080
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-based volatility index ; model-free volatility index ; risk ; leverage effect ; forecasting volatility …
Persistent link: https://www.econbiz.de/10009355561
The study of significant deterministic seasonal patterns in financial asset returns is of high importance to academia and investors. This paper analyzes the presence of seasonal daily patterns in the VIX and S&P 500 returns series using a trigonometric specification. First, we show that, given...
Persistent link: https://www.econbiz.de/10010679160
The sum of squared intraday returns provides an unbiased and almost error-free measure of ex-post volatility. In this paper we develop a nonlinear Autoregressive Fractionally Integrated Moving Average (ARFIMA) model for realized volatility, which accommodates level shifts, day-of-the-week...
Persistent link: https://www.econbiz.de/10010325218
The sum of squared intraday returns provides an unbiased and almost error-free measure of ex-post volatility. In this paper we develop a nonlinear Autoregressive Fractionally Integrated Moving Average (ARFIMA) model for realized volatility, which accommodates level shifts, day-of-the-week...
Persistent link: https://www.econbiz.de/10011335205
The sum of squared intraday returns provides an unbiased and almost error-free measure of ex-post volatility. In this paper we develop a nonlinear Autoregressive Fractionally Integrated Moving Average (ARFIMA) model for realized volatility, which accommodates level shifts, day-of-the-week...
Persistent link: https://www.econbiz.de/10005137234
and Value-at-Risk forecasting of daily stock-returns using data from the Spanish equity index IBEX-35. The in …
Persistent link: https://www.econbiz.de/10005731355
This discussion paper resulted in a publication in the 'International Journal of Forecasting', 2009, 27, 282-303.<P> The sum of squared intraday returns provides an unbiased and almost error-free measure of ex-post volatility. In this paper we develop a nonlinear Autoregressive Fractionally...</p>
Persistent link: https://www.econbiz.de/10011257135
distribution, but are derived under the risk-neutral probability measure. This paper shows how to convert risk-neutral moments into … several empirical questions. We show that a model of a representative investor with CRRA utility can explain the variance risk … premium for the S&P500 index but fails to capture variance and skewness risk premiums simultaneously. Moreover, we present …
Persistent link: https://www.econbiz.de/10010399367