Representation, power and electoral rules : myths and paradoxes : a computational and experimental approach.

Summary Can humans, alone or in groups, understand the influence they have within a decision-making committee? Is he able to treat all actors fairly in the process of designing a parliamentary assembly, or will he give life to bizarre creatures with purely political motivations? Are the current voting rules designed to avoid paradoxical election outcomes? This thesis answers these questions using tools from cooperative and non-cooperative game theory, using both computational and experimental approaches. The first part of this work analyzes two-tier federal voting systems and election laws. The second part focuses on the learning of individuals in games in which actors must identify and choose the situation that gives them the greatest influence.