The social identity approach: Appraising the Tajfellian legacy.

Since its original formulation, Tajfel's Social Identity Theory (SIT) has broadened considerably from its original focus on intergroup relations and is now applied to a wide range of phenomena. Indeed, the 'social identity approach' has become one of the most widely used perspectives in contemporary social psychology. In this article, I examine the popularity of Tajfel's writings on social identity and intergroup relations, especially over the last thirty years when they started to become more generally used. I offer a critical appraisal of the original SIT, both as a theory of intergroup relations and as a theory of identity, concluding that its real value lies in its success in offering an over-arching perspective on the importance of groups in social life and its ability to stimulate new areas of research. I then widen the discussion to consider how the social identity perspective has been used in a number of other fields of enquiry.