Logic and game theory have had a few decades of contacts by now, with the classical results of epistemic game theory as major high-lights. In this paper, we emphasize a recent new perspective toward “logical dynamics”, designing logical systems that focus on the actions that change...

Die UdSSR muß sich, wie nun offenbar beschlossen, aus Afghanistan zurückziehen oder sie müßte sich auf eine nie gewollte Eskalation einlassen, da die "Afghanisierung" des Konflikts nicht geglückt und die militärische Stärke des Widerstands bis zum Patt gewachsen ist. Die politischen...

We propose six axioms concerning when one candidate should defeat another in a democratic election involving two or more candidates. Five of the axioms are widely satisfied by known voting procedures. The sixth axiom is a weakening of Kenneth Arrow’s famous condition of the Independence of...

We propose a new single-winner voting system using ranked ballots: Stable Voting. The motivating principle of Stable Voting is that if a candidate A would win without another candidate B in the election, and A beats B in a head-to-head majority comparison, then A should still win in the election...