Results 141 to 150 of about 1,024,611 (253)

Properties of the American price function in the Heston-type models [PDF]

open access: yesarXiv, 2019
We study some properties of the American option price in the stochastic volatility Heston model. We first prove that, if the payoff function is convex and satisfies some regularity assumptions, then the option value function is increasing with respect to the volatility variable.
arxiv  

Spot inversion in the Heston model

open access: yes, 2008
We analyse the Heston stochastic volatility model under an inversion of spot. The result is that under the appropriate measure changes the resulting process is again a Heston type process whose parameters can be explicitly determined from those of the original process.
Baño Rollin, Sebastian del   +1 more
openaire   +4 more sources

Algorithmic complexity in the heston model [PDF]

open access: green, 2011
Henning Marxen   +6 more
openalex   +1 more source

Why do financial markets asymmetrically smile? A simple formula in the multi-factor Heston model [PDF]

open access: yes
A simple approach to determining the Gaussian kernel that constitutes the backbone of the multi-factor Heston model is proposed based on a suitable expansion in powers of volatilities of volatilities.
Iori, G.   +3 more
core  

Theoretical and Empirical Validation of Heston Model [PDF]

open access: yesarXiv
This study focuses on the application of the Heston model to option pricing, employing both theoretical derivations and empirical validations. The Heston model, known for its ability to incorporate stochastic volatility, is derived and analyzed to evaluate its effectiveness in pricing options.
arxiv  

Calibration Design of Implied Volatility Surfaces [PDF]

open access: yes
The calibration of option pricing models leads to the minimization of an error functional. We show that its usual specification as a root mean squared error implies fluctuating exotics prices and possibly wrong prices.
Kai Detlefsen, Wolfgang Härdle
core  

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