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bounded variation and that a superhedge is possible if upper bounds on the volatility of the relevant processes are available … this choice on the cost process is analyzed. Referring to bond markets, a thorough study of the implications of volatility … mismatching is made and explicit results are stated for a broad range of volatility scenarios. …
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change est expliquée par le niveau des opérations `a l’international ainsi que par des variables que la théorie considère …
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En recourant de plus en plus aux modèles à forme réduite, la théorie de l'évaluation du risque de crédit se distance de …
Persistent link: https://www.econbiz.de/10005773136
Plusieurs gestionnaires de portefeuille pensent encore à tort qu’une couverture delta suffit pour protéger leur portefeuille contre les fluctuations des marchés financiers. Mais une augmentation marquée de la volatilité des cours boursiers les décevra dans leurs attentes. Après avoir...
Persistent link: https://www.econbiz.de/10005773140
Monte Carlo simulation has an advantage upon the binomial tree as it can take into account the multidimensions of a problem. However it convergence speed is slower. In this article, we show how this method may be improved by various means: antithetic variables, control variates and low...
Persistent link: https://www.econbiz.de/10005773152
In this paper, we simulate portfolios which aim to insure the invested capital. The object of our simulations is the duplication of the cashflows of strategies based on options. We initially show how to duplicate the cash-flows of a call by using a leveraged portfolio of stocks. After, we...
Persistent link: https://www.econbiz.de/10005773156
Markets makers quote many option categories in terms of implicit volatility. In doing so, they can reactivate the Black … and Scholes model which assumes that the volatility of an option underlying is constant while it is highly variable. First … of all, this article, whose purpose is very empirical, presents a simulation of stochastic volatility programmed in …
Persistent link: https://www.econbiz.de/10005575043
In this paper, we study the following models : Heath-Jarrow-Morton (1992) and Libor-Market- Model, also known as Brace-Gatarek-Musiela model (1997). We survey the extensions of these models and their representation in the Black and Scholes world. Our approach is pedagogical and is based on an...
Persistent link: https://www.econbiz.de/10005710034