Showing 1 - 10 of 10
A Markov chain with an expanding non-uniform grid matching risk-neutral marginal distributions is constructed. Conditional distributions of the chain are in the variance gamma class with pre-specified skewness and excess kurtosis. Time change and space scale volatilities are calibrated from...
Persistent link: https://www.econbiz.de/10010606725
With an interest in keeping the cost of carry at acceptable levels for the expression of a positive or negative view on an equity asset over the longer term, a variation to equity default swaps is introduced that fixes the barrier at a given quantile. The barrier level for the stock price then...
Persistent link: https://www.econbiz.de/10010755607
In this paper we propose a transform method to compute the prices and Greeks of barrier options driven by a class of Levy processes. We derive analytical expressions for the Laplace transforms in time of the prices and sensitivities of single barrier options in an exponential Levy model with...
Persistent link: https://www.econbiz.de/10008675075
We define the class of local Levy processes. These are Levy processes time changed by an inhomogeneous local speed function. The local speed function is a deterministic function of time and the level of the process itself. We show how to reverse engineer the local speed function from traded...
Persistent link: https://www.econbiz.de/10009208366
This paper follows the insights of Black and Scholes (1973 J. Political Economy 81 637-54) and Merton (1973 Bell J. Economics Management Sci. 4 141-83) in contexts where their conclusions cannot be exactly obtained. Specifically, we consider an infinite activity Levy process with no continuous...
Persistent link: https://www.econbiz.de/10009208385
Persistent link: https://www.econbiz.de/10008466741
We report on the adequacy of using Sato processes to value equity structured products. In models used to price options on realized variance, the latter must be a random variable with a positive variance. An analysis of this variance of realized variance for Sato processes shows that these...
Persistent link: https://www.econbiz.de/10005495780
We analyse the equilibrium asset pricing implications for an economy with single period return exposures to explicit non-Gaussian systematic factors, that may be both skewed and long-tailed, and Gaussian idiosyncratic components. Investors maximize expected exponential utility and equilibrium...
Persistent link: https://www.econbiz.de/10005462667
The concept of stress levels embedded in S&P500 options is defined and illustrated with explicit constructions. The particular example of a stress function used is MINMAXVAR. Seven joint laws for the top 50 stocks in the index are considered. The first time changes a Gaussian one factor copula....
Persistent link: https://www.econbiz.de/10008675050
Adopting a constant elasticity of variance formulation in the context of a general Levy process as the driving uncertainty we show that the presence of the leverage effect† in this form has the implication that asset price processes satisfy a scaling hypothesis. We develop forward partial...
Persistent link: https://www.econbiz.de/10008675058