 If A wants to get B to do act x, there are two general strategies that A might undertake. A might change, or propose to change, the external or objective features of B’s choice situation; or alternatively, A might try to alter certain internal or subjective features of B’s choice situation. While some writers might call both strategies manipulative, at least in certain circumstances, I prefer to reserve the label manipulation for a subset of morally problematic actions falling in the second category. (Mills 1995: 97)