This study explores the choice to engage in coordinated activity and the degree to which the gendered nature of political institutions has an impact on the mobilization strategies of women's groups. In so doing, we explore whether or not the opportunity structure is 'gendered,' producing different outcomes for women's groups than for other social groups. Since we know that coordinated activity can be advantageous for the achievement of group goals, any differences for women's groups are significant. In addition, this study asks if women's groups coordinate activities to advance strategic interests, those that are vested in long-term transformations of gender relations and hierarchies and are concerned with changing the underlying inequities in the prevailing institutional arrangement, or to advance practical interests, those that "do not themselves challenge the prevailing forms of gender subordinationâ¦" (Molyneux 1995, 284). This study also asks if the choice to engage in coordinated activities is mediated by issue focus or 'type' of group. Both domestic and transnational/supranational acts of coordination are examined and results focus on the necessity of a feminized interpretation of the POS. ..PAT.-Unpublished Manuscript [ABSTRACT FROM AUTHOR]