As scholarly interest in the concept of identity continues to grow, social identities are proving to be crucially important for understanding contemporary life. Despite - or perhaps because of - the sprawl of different treatments of identity in the social sciences, the concept has remained too...

Monoamine oxidase A gene (MAOA) has earned the nickname ‘warrior gene’ because it has been linked to aggression in observational and survey-based studies. However, no experiments have tested whether the ‘warrior gene’ actually drives behavioral manifestations of these tendencies,...

Prospect theory scholars have identified important human decision-making biases, but they have been conspicuously silent on the question of the origin of these biases. Here we create a model that shows preferences consistent with prospect theory may have an origin in evolutionary psychology....

Much work has explored decision making under stress in political leadership. Less work has attempted to link the enormous emotional pressure of crisis with both the heightened sense of political accountability and responsibility and the increased need for social support under such circumstances....

In this article, the authors investigate the relationship between states'political leaders'ages, their regime type, and the likelihood of militarized dispute initiation and escalation. They examine more than 100,000 interstate dyads between 1875 and 2002 to systematically test the relationship...

Amos Tversky died in 1996. Tversky's professional ideas and contributions revolutionized not only his own field of cognitive psychology, but that of economics as well. The purpose of this article is to systematically outline the meaning and potential significance of Tversky's insights for the...

This article describes the WomanStats Project Database — a multidisciplinary creation of a central repository for cross-national data and information on women available for use by academics, policy-makers, journalists, and all others. WomanStats is freely accessible online, thus...

Scholars have long focused on socio-psychological attachment, elite discourse, and rational action to explain the nature and structure of ideologies. Recently genetic and neurobiological influences have also emerged as predictors of ideological preferences. So far however, there has been little...