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straddles; second, we estimate the PVR in a Heston (1993) stochastic-volatility model. In both cases, the estimation is … more negative and its term structure is steeper when volatility is high. These findings are inconsistent with calibrations …
Persistent link: https://www.econbiz.de/10011303715
volatility surface. The rapid development of the CDS market has provided convenient products to extract credit risk, and its … interaction with equity volatility has been analyzed in many studies. However, in most of them the 5-year credit default swap … spread is used to measure credit risk, whilst the at-the-money 1-month implied volatility is used to measure equity …
Persistent link: https://www.econbiz.de/10014254192
In practice, rather than to presume a hypothetical condition that needs be validated theoretically, it is sufficient to accept a real condition that exists and can be directly validated for practical purposes. This paper presents a practical approach to formulating the theoretical price of a...
Persistent link: https://www.econbiz.de/10012916868
bond returns, while neither, like implied volatility, predicts put returns. These opposite predictability results are … consistent with a stochastic volatility, stochastic jump intensity model, as put premia increase in volatility but decrease in …
Persistent link: https://www.econbiz.de/10013222266
, futures and forwards, option pricing under jumps and stochastic volatility, and the market valuation of corporate securities …
Persistent link: https://www.econbiz.de/10014023860
volatility risk. While pointing out the joint pricing kernel is not identified nonparametrically, we propose model-free estimates … of marginal pricing kernels of the market return and volatility conditional on the VIX. We find that the pricing kernel … present a U-shape. Hence, stochastic volatility is the key state variable responsible for the U-shape puzzle documented in the …
Persistent link: https://www.econbiz.de/10014121051
The aim of this article is to provide tools to calibrate a smooth local volatility surface in the presence of jumps …. First we provide techniques to approximate the value of European options in a local volatility model with jumps, then we … propose a quick and robust fixed point algorithm combined with this method to build smooth local volatility surfaces …
Persistent link: https://www.econbiz.de/10013003356
nature of the answer when the volatility differential is due to the systematic/priced risk. Here the difference in the … direction and magnitude of the net effect depends on the levels of asset beta and volatility and the moneyness and maturity of … nonlinear derivatives, one should pay attention to the source of volatility differential, and the sample range/mix of betas …
Persistent link: https://www.econbiz.de/10012968263
This paper presents the first comparison of the accuracy of density forecasts for stock prices. Six sets of forecasts are evaluated for DJIA stocks, across four forecast horizons. Two forecasts are risk-neutral densities implied by the Black-Scholes and Heston models. The third set are...
Persistent link: https://www.econbiz.de/10012970479
In this paper we present a critical point on connections between stock volatility, implied volatility, and local … volatility. The essence of the Black Sholes pricing model is based on assumption that option piece is formed by no arbitrage … shows even more. The volatility of the underlying should be also changed. Such practice calls for implied volatility …
Persistent link: https://www.econbiz.de/10012950779