Abstract
Comparative identity and intergroup differentiation. Three research studies in which the concept of comparative identity is used are presented. Comparative identity is the relative degree of identification with two social categories at different levels of abstraction or inclusiveness. In all the studies a more or less direct connection between comparative identity and intergroup differentiation is established: in the first, with ingroup favoritism between linguistics groups in Spain, in the second with the accentuation of illusory correlations when processing information concerning the ingroup and the outgroup, and in the third in the evaluation of a supranational category which may have an impact on intergroup relations.
