Intending harm, foreseeing harm, and failures of the will

Theoretical defenses of the principle of double effect (pde) due to Quinn, Nagel and Foot are claimed to face severe difficulties. But this leaves those of us who see something in the case-based support for the pde without a way of accounting for our judgments. This article proposes a novel principle it calls the mismatch principle, and argues that the mismatch principle does better than the pde at accounting for our judgments about cases and is also theoretically defensible. However, where the pde makes claims about the permissibility of actions, the mismatch principle makes claims only about the evaluation of agents; and where the pde explains the cases in terms of intending harm, the mismatch principle explains them in terms of a quite different feature of the agent's will.