This article focuses on three mechanisms to explain the rise of populist movements across Europe. They are politicization of resentment, exploitation of social cleavages, and polarization of resentment and feelings of non-representation. We conceptualize populism as a strategic power game aiming to transform potential majorities into real ones by creating or reframing social cleavages. Our theo...

In studies of multi-agent interaction, especially in game theory, the notion of equilibrium often plays a prominent role. A typical scenario for the belief merging problem is one in which several agents pool their beliefs together to form a consistent “group” picture of the world. The aim of this paper is to define and study new notions of equilibria in belief merging. To do so, we assume the a...

Nowadays, social networks became essential in information exchange between individuals. Indeed, as users of these networks, we can send messages to other people according to the links connecting us. Moreover, given the large volume of exchanged messages, detecting the true nature of the received message becomes a challenge. For this purpose, it is interesting to consider this new tendency with ...

Introduction: Estimating the nonkinetic effects of irregular warfare (IW) actions on the population, such as those described in the U.S. Army counterinsurgency manual,1 is now incorporated into the analysis of IW war games. CogSim is an agent-based population attitude model developed at NRL as a prototype to predict coalition formation between several groups based on social science theories, na...

Individuals tend to explain the characteristics of others with reference to an underlying essence, a tendency that has been termed psychological essentialism. Drawing on current conceptualizations of essentialism as a fundamental mode of social thinking, and on prior studies investigating belief in genetic determinism (BGD) as a component of essentialism, we argue that BGD cannot constitute the...