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...

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...

In recent years there has been a strong focus on ‘Islamic radicalisation’ in Europe, due both to the threat of terrorism and its security implications, and to the issue of integrating second generation migrants in Europe. This paper analyses two main approaches to studying the roots...

This paper by a noted expert on Islam, Olivier Roy, declares that the success of Osama Bin Laden is not to have established a modern and efficient Islamist political organisation, but to have invented a narrative that could allow rebels without a cause to connect with a cause. Instead of looking...