Andrew Lichter

Conventionalism about promising is the view that the power to make binding promises depends essentially on the existence of a social practice or convention of promising. This paper explores an objection to conventionalism that says that—(allegedly) contra conventionalism—there is no morally acceptable world in which we lack the power of promise. Instead, normative powers theorists claim that our power of promise is morally basic or necessary. I argue that the conventionalist need not deny this claim. There are several ways to develop a noncontingent conventionalism: a version of the view that can accommodate the insight that the power of promise is indispensable to morally acceptable lives. Then, I argue that the conventionalist is indeed on the hook for accommodating this insight. I wrap up by considering the state of play in the debate over conventionalism about promising. Once we note the theoretical possibility of noncontingent conventionalism, it looks like the theatre of battle shifts to the difficult question of whether “natural” morality always provides “moral necessities.”

Abraham Roth argues that to accept a promise is to intend the performance of the promised action. I argue that this proposal runs into trouble because it makes it hard to explain how promises provide reasons for the performance of the promised action. Then, I ask whether we might fill the gap by saying that a promisor becomes entitled to the reasons for which her promise is accepted. I argue that this fix would implausibly shrink the class of binding promises and suggest that similar difficulties may arise for any theory that casts promises as an exercise of shared agency.