Rainer Greifeneder is professor of Social Psychology at the University of Basel, Switzerland. His research focuses on various aspects of social cognition, such as the experienced ease or difficulty of thinking, and social exclusion.

Herbert Bless is professor of Microsociology and Social Psychology at the University of Mannheim, Germany. His research addresses the construction of social judgment and the interplay of affect and cognition.

Klaus Fiedler is professor of Social Psychology at the University of Heidelberg, Germany. His research interests include judgment and decision making, social cognition, language and communication, behavior regulation, and methodological issues in behavioral science.