Geographies of migration, geographies of justice? Feminism, intersectionality, and rights Migration and social (in)justice are intrinsically linked. Migration is often spurred by social injustices due to lack of opportunities or multiple insecurities, exacerbated by racism and ethnoreligious or gender-based discrimination. By moving to new locations, migrants are often treated as`different' on the basis of their ethnic background, religion, or country of origin and subjected to inferior treatment on the basis of being noncitizens. Gender-based discrimination adds a further, and for women often the most crucial, layer to these complex processes as migrant women leave and enter gendered societies and gender-segregated labour markets and are subjected to gendered migration policies (Piper, 2008a). In this sense, social justice is essentially a transnational (and, thus, spatial) phenomenon affecting migrants at all stages of their migration experience (Weiss, 2005).But migration also has the potential to bring about greater social justice. As migrants undertake short or long journeys to new places, they learn new ways of life, they develop a new perspective on their societies`back home', and they adopt alternative ways of formal political organising and informal coping strategies. Through their actions and activism, whether directly or indirectly, they explore and realise their potential for bringing about greater social justice individually and collectively at both ends of the migration process, effectively creating new relationships across transnational space.The papers in this theme issue address geographies of justice and migration through case studies with migrants from various geographical regions öprimarily South America, Africa, and Asiaöand at different scales. Some address multidirectional migration dynamics while others focus more specifically on a particular sector or smaller level of analysis, such as the household. All are interdisciplinary in spirit and in practice, and are influenced by feminist ethics (hooks, 1999; Kemp and Squires, 1997) and the multiple or varying types of injustices experienced by many women, including migrant women, across the world. How unequal gender relations and genderbased discrimination manifest themselves on a daily basis, however, differs across space (Silvey, 2006).
Gendered migrationCross-border migration has been subject to significant changes over the past decades and the feminisation of migration öthat is, the increase in the number and proportion of women engaging in cross-border migrationörepresents one of these significant changes (Castles and Miller, 2009;Samers, 2010). (1) However, while the numerical and proportional increase in migrant women is significant, even more important is the recognition of migration as a gendered process (Donato et al, 2006;Silvey, 2004). Women's modes of entry and their circulation across space differ from men's. These movements tend to have different impacts upon women's and men's respective positions within labour markets as wel...