“…This work shows that when the in-group is not able to fulfi l the group members' need for positive collective self-esteem, group members who do not feel a strong attachment with their group (i.e. low group identifi cation) tend to leave the group (Bernache-Assollant, Laurin, Bouchet, Bodet, & Lacassagne, 2010 ;Cadinu & Cerchioni, 2001 ;Ellemers, Spears, & Doosje, 1997 ;Jetten, Iyer, Tsivrikos, & Young, 2008 ). For example, Ellemers et al ( 1997 , Study 1) indicated that threatened low identifi ers more strongly desired individual mobility compared to high identifi ers, independent of the permeability of the group boundaries.…”