The 2020 Dimitris N. Chorafas Foundation prize was awarded to Alberto Marchesi, supervisor prof. Nicola Gatti and tutor prof. Cesare Alippi, with the thesis entitled "Leadership Games: Multiple Followers, Multiple Leaders, and Perfection" and Alessio La Bella, supervisor prof. Riccardo Scattolini and tutor prof. Lorenzo Mario Fagiano, with the thesis entitled "Optimization-based Control of Microgrids for Ancillary Services Provision and Islanded Operation".