Rinel Foguen Tchuendom holds, since June 2018, a PhD in mathematics obtained at the University of Côte d’Azur, under the supervision of professor François Delarue, within the J.-A. Dieudonné Laboratory. During his doctoral work, he studied a class of mean field games called extended linear quadratic, and showed that it is possible to restore uniqueness of solutions, by random forcing. Next, for particular examples in this class of mean field games, he compared three selection methods, when non-uniqueness of solutions holds. This comparison has brought to light a paradox in the selection of solutions. Finally, he applied his results on a toy model, in the field of mathematical economy. Since August 2018, under the direction of Peter E. Caines and Roland P. Malhamé, he has been a postdoctoral researcher at GERAD. As part of a multi-university project funded by the IVADO, he is working on developing mean field game models which can be used to set up energy demand management protocols, that are decentralized, robust, and compatible with the rise of renewable energies. Protocols of this type would accelerate the transition to a low-carbon economy.