This program has a number of unique features. First, the present program focuses strongly on social behavior, including negotiation, organizational citizenship, aggression, prosocial behavior, performance, conflict resolution, smoking, coping, and discrimination. Cognitive processes such as biased perceptions, stereotyping, and automatic responses, and affective processes such as burnout, depression, and mood, are important features of the current program, but these are generally studied in direct relation to social behaviors. Second, the program emphasizes the integration of basic and applied research. This implies an emphasis on experimental paradigms with considerable ecological validity, and on applied research that has the potential to contribute to theory development. The philosophy is that basic research needs to have relevance for phenomena in society, and that applied research needs to be directly theoretically relevant. Moreover, although the applied research within the present program is conducted with respect to a variety of issues, including work, health, traffic, integration and immigration, and the environment, it is guided by common theoretical frameworks. Third, the program emphasizes the integration of personality psychology with social and organizational psychology. The lexical approach to personality and the development of questionnaires to assess personality characteristics constitute an important line of investigation in this program, but this line is linked to research on the role of personality differences with respect to social and organizational behavior. The assumption is that interpersonal behaviors cannot adequately be understood without paying attention to personality factors. This implies not only research on the interpersonal consequences of the Big Five , but also research on other individual differences such as social comparison orientation, attachment styles and naïve self theories. Fourth, although a variety of theoretical frameworks is employed, there is a particular focus on interpersonal and intergroup comparisons, i.e. on how individuals and groups perceive themselves in relation to other individuals and groups, and on the consequences of this for a variety of phenomena such as self-evaluation, motivation and conflict. This implies, for example, basic research on the effects of social comparison upon self-evaluation, and on stereotyping and meta-stereotyping. In addition, this includes applied research on the role of social comparison with respect to for, example, health behavior, organizational behavior and environmental behavior.