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Article Dans Une Revue Methodology and Computing in Applied Probability Année : 2006

Numerical methods for the pricing of Swing options: a stochastic control approach

Résumé

In the natural gas market, many derivative contracts have a large degree of flexibility. These are known as Swing or Take-Or-Pay options. They allow their owner to purchase gas daily, at a fixed price and according to a volume of their choice. Daily, monthly and/or annual constraints on the purchased volume are usually incorporated. Thus, the valuation of such contracts is related to a stochastic control problem, which we solve in this paper using new numerical methods. Firstly, we extend the Longstaff–Schwarz methodology (originally used for Bermuda options) to our case. Secondly, we propose two efficient parameterizations of the gas consumption, one is based on neural networks and the other on finite elements. It allows us to derive a local optimal consumption law using a stochastic gradient ascent. Numerical experiments illustrate the efficiency of these approaches. Furthermore, we show that the optimal purchase is of bang-bang type.
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Dates et versions

inria-00117175 , version 1 (01-12-2006)

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Citer

Christophe Barrera-Esteve, Florent Bergeret, Charles H Dossal, Emmanuel Gobet, Asma Meziou, et al.. Numerical methods for the pricing of Swing options: a stochastic control approach. Methodology and Computing in Applied Probability, 2006, Methodology and Computing in Applied Probability, 8 (4), pp.517-540. ⟨10.1007/s11009-006-0427-8⟩. ⟨inria-00117175⟩
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