Daily average wind speeds are dynamically modelled by a continuous-time autoregressive model with seasonal mean and volatility. Futures prices based on an index of aggregated wind speeds are derived, and it is shown that the Samuelson effect breaks down. The volatility of these futures will decrease when approaching maturity, an effect which is explained by the memory in higher-order autoregressive models. (C) 2008 Elsevier B.V. All rights reserved.
机构:
Univ Paris 06, CNRS, UMR 7598, Lab Jacques Louis Lions, F-75252 Paris, FranceUniv Paris 06, CNRS, UMR 7598, Lab Jacques Louis Lions, F-75252 Paris, France