Ears cannot speak, lips cannot hear, but eyes can both signal and perceive. For human beings, this dual function makes the eyes a remarkable tool for social interaction. For psychologists trying to understand eye movements, however, their dual function causes a fundamental ambiguity. In order to contrast signaling and perceiving functions of social gaze, we manipulated participants' beliefs abo...

A new serial cost sharing rule, called mixed serial cost sharing, is defined on the class of cost functions which equal a sum of an increasing convex and increasing concave function. This rule is based on a particular decomposition principle known as complementary-slackness decomposition and it coincides with the original serial rule of Moulin and Shenker (1992) [Moulin, H., Shenker, S., 1992. ...

How incidentally activated social representations affect subsequent thoughts and behaviors has long interested social psychologists. However, such priming effects have recently provoked debate and skepticism. This opening article of the special issue of Social Cognition on understanding priming effects in social psychology identifies two general sources of skepticism: 1) insufficient appreciati...

In this essay, the authors consider the challenge made by two keynote speakers at recent social work research conferences, one in the United States and the other in Europe. Both spoke of a knowledge crisis in social work. Both John Brekke (Society for Social Work and Research) and Peter Sommerfeld (First Annual European Conference for Social Work Research) proposed some version of realism as a ...

We consider network contribution games, where each agent in a social network has a budget of effort that he can contribute to different collaborative projects or relationships. Depending on the contribution of the involved agents a relationship will flourish or drown, and to measure the success we use a reward function for each relationship. Every agent is trying to maximize the reward from all...