"One important common theme of our five-country research is that all union movements see political engagement as essential in their efforts at revitalization. Specific forms of political action, however, vary according to national context. If unions find or build adequate political and institutional supports, they have less incentive to mobilize the membership, organize the unorganized, build coalitions with other groups, or give support to grass-roots initiatives. The irony is that a strong institutional position can reduce incentives to organize, which may be essential to sustain long-term influence; yet organizing unions in America and Britain are hard pressed to sustain gains in the absence of adequate institutional supports."

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