While scholars agree that frame bridging contributes to movement expansion, this article identifies the underinvestigated concept of frame-movement scope mismatch—the phenomenon where the scope of movement frames and the scope of the movements that employ such frames do not match, such as a movement that adopts internationalist rhetoric yet remains local. This study investigates this mismatch based on cases of anti-U.S. military siting campaigns where similar frame bridging strategies resulted in movements of different scales. Findings show that movement scope expansion depended on the politicization of siting disputes that provided siting opponents with political opportunities for coalition building and qualified the causal influence of frame bridging. Varying external political circumstances, in other words, interacted with the invariant feature of frame bridging to determine frame resonance and coalitional mobilization.

尽管学者们认为框架桥接有助于运动扩展，但本文指出了对框架运动范围不匹配的研究不足，即运动框架的范围与采用此类框架的运动范围不匹配的现象，例如运动。采取国际主义的言论，但仍保留在当地。这项研究基于反美军事选址运动的情况调查了这种失配，在这种情况下，类似的架桥策略导致了不同规模的运动。研究结果表明，运动范围的扩大取决于选址争议的政治化，这为选址对手提供了建立联盟的政治机会，并确定了架桥的因果关系。换句话说，外部政治环境的变化，