Workers who go on strike are sometimes accused of holding their employer “to ransom”, the implication being that strike action is a kind of extortion. The paper provides an analytical reconstruction of this objection, before presenting and interrogating different strategies for countering it. The first says that work-stoppages can only be extortionate if they infringe an employer’s rightful claim to productive labour, but that no employer has any such claim under capitalism. The second says that work-stoppages cannot be extortionate because, (...) by themselves, they cannot put an employer under duress. The third and most promising strategy says that an employer’s claim to the productive labour of workers is conditional upon his/her not exploiting them. This approach does not produce a blanket exoneration; it tells us that the aptness of describing a strike as extortionate depends on a prior appraisal of the conditions that the strikers work under, and the fairness with which they are treated. (shrink)