Ernst Joachim Wolfgang Stroebe is a German social psychologist and Emeritus Professor of Social Psychology at the Utrecht University and the University of Groningen, particularly known for his works "Introduction to social psychology" and "Social psychology and health," and on brainstorming. Miles Ronald Cole Hewstone is a leading social psychologist who is well known for his work on social relations. He graduated from the University of Bristol in 1978 and then moved to the University of Oxford from which he obtained a D.Phil. in social psychology in 1981.

• Contributors. Introduction to Volume 10. Acknowledgements. Chapter 1: Explaining Asymmetric Intergroup Judgments through Differential Aggregation: Computer Simulations and Some New Evidence (Klaus Fiedler, Markus Kemmelmeier and Peter Freytag). Chapter 2: Perceived Group Variability in Intergroup Relations: The Distinctive Role of Social Identity (Bertjan Doosje, Russell Spears, Naomi Ellemers and Willem Koomen). Chapter 3: Cognition, Affect and the Prediction of Social Attitudes (Geoffrey Haddock and Mark P. Zanna). Chapter 4: Habit, Attitude, and Planned Behaviour: Is Habit and Empty Construct or an Interesting Case of Goal-directed Automaticity (Bas Verplanken and Henk Aarts)? Chapter 5: Comparing Is Believing: A Selective Accessibility Model of Judgmental Anchoring (Thomas Mussweiler and Fritz Strack). Chapter 6: Cancellation and Focus: A Feature-matching Model of Choice (Steven J. Sherman, David A. Houston and Deborah Eddy). Chapter 7: Confirmation and Disconfirmation: Their Social Advantages (Jacques-Philippe Leyens, Benoit Dardenne, Vincent Yzerbyt, Nathalie Scaillet and Mark Snyder). Chapter 8: Cooperation and Competition as Partners (Evert Van de Vliert). Chapter 9: Reciprocity in Interpersonal Relationships: An Evolutionary Perspective on Its Importance for Health and Well-being (Bram P. Buunk and Wilmar B. Schaufeli). Author Index. Subject Index. Contents of Previous Volumes.