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Laure Durand-Viel Bertrand Villeneuve This article analyzes the impact of incomplete contracts’ length on investment in a bilateral relationship. The seller has the power to set the contract terms whereas the buyer decides on the investment level, which acts as a cap on future demand. Two-part tariffs succeed at implementing the optimal investment and consumption even if commitment is limited, and the contract’s duration is irrelevant. Interestingly, this efficient solution is rendered possible Read more [...]

B. Bouchard, R. Elie, N. Touzi SIAM Journal on Control and Optimization 48(5), pp 3123-3150 - Décembre 2009 Plus d'infos.

U. Cetin, M. Soner, N. Touzi Finance and Stochastics 14, pp 317-341 - Décembre 2009 Plus d'infos.

A. Creti, B. Villeneuve chapitre dans The Economics of Natural Gas Storage Décembre 2009 Plus d'infos.

M. B. Abdelhamid, C. Aloui, C. Chaton International Journal of Oil, Gas and Coal Technology 2(1), pp 44-57 - Décembre 2009 Plus d'infos.

Nazim Regnard, Jean-Michel Zakoïan A novel GARCH(1,1) model, with coecients function of the realizations of an exogenous process, is considered for the volatility of daily gas prices. A distinctive feature of the model is that it produces non-stationary solutions. The probability properties, and the convergence and asymptotic normality of the Quasi-Maximum Likelihood Estimator (QMLE) have been derived by Regnard and Zakoian (2009). The prediction properties of the model are considered. We derive Read more [...]

Corinne Chaton Marie-Laure Guillerminet Feed-in Tariffs promoting renewable energy sources and quotas of CO2 emissions have been implemented jointly in France to reduce CO2 emissions. We develop on GAMS a supply-demand model applied to the electricity sector. Demand is uncertain and is characterized by load curves. We find that if both policies reduce emissions, feed-in tariffs involve a substantial extra-cost without significant gain for sure in terms of emissions. Read more [...]

Nazim Regnard, Jean-Michel Zakoïan This paper considers GARCH(1,1) models in which the time-varying coefficients are functions of the realizations of an exogenous stochastic process. Time series generated by this model are in general nonstationary. Necessary and sufficient conditions are given for the existence of non-explosive solutions, and for the existence of moments of these solutions. The asymptotic properties of the quasi-maximum likelihood estimator are derived under mild assumptions. Read more [...]

Stéphane Goutte, Nadia Oudjane, Francesco Russo For a large class of vanilla contingent claims, we establish an explicit Föllmer-Schweizer decomposition when the underlying is a process with independent increments (PII) and an exponential of a PII process. This allows to provide an efficient algorithm for solving the mean variance hedging problem. Applications to models derived from the electricity market are performed. Plus d'infos. Read more [...]

J. André, J.F. Bonnans Optimization and Engineering 12(1-2), pp 175-198 - Novembre 2009 Plus d'infos.