Moral Obligation, Self-Interest and the Transitivity Problem

Abstract

Is the relation ‘is a morally permissible alternative to’ transitive? The answer seems to be a straightforward yes. If Act B is a morally permissible alternative to Act A and Act C is a morally permissible alternative to B then how could C fail to be a morally permissible alternative to A? However, there are cases where this transitivity appears problematic. My aim in this article is to provide a solution to this problem. I will then investigate two ways in which we might justify rejecting the transitivity of the ‘is a permissible alternative to’ relation. Next, I will look at Dorsey's solution, which involves a reinterpretation of the intuitions used to generate the problem. I will argue that none of these solutions are fully satisfying, before going on to provide a novel solution to the problem and to argue that it avoids the problems facing the alternative solutions.