Contractualism and rule consequentialism both hold that whether a moral principle is true depends on what would happen if it were generally adopted as a basis for conduct. This paper argues that theories with this feature face a profound epistemic problem. The question of what would happen if different moral principles were generally adopted is a complex empirical question, comparable in difficulty to the question of what would happen if a nation adopted different laws, or if humanity had evolved different (...) traits. Reflection on the epistemic demands of this question shows that we have no clue what would happen if different moral principles were generally adopted, and thus no clue what moral principles contractualism and rule consequentialism endorse. The only way to avoid cluelessness is to test principles on groups small enough to be epistemically tractable, which requires accepting an implausibly extreme form of moral relativism. I conclude that we must reject contractualism, rule consequentialism, and any other moral theory that entails that the truth of a moral principle depends on what would happen if it were generally adopted. (shrink)

What is the relation between moral reasons and moral requirement? Specifically: what relation does an action have to bear to one’s moral reasons in order to count as morally required? This paper defends the following answer to this question: an action is morally required just in case the moral reasons in favor of that action are enough on their own to outweigh all of the reasons, moral and nonmoral, to perform any alternative. I argue that this decisive moral reason view (...) satisfies three key desiderata: it is compatible with either affirming or denying the existence of moral options; it vindicates moral rationalism, the thesis that an action can be morally required only if one ought to do it all things considered; and most distinctively, it explains why unexcused moral wrongdoing necessarily shows disregard for moral reasons. (shrink)

This paper argues that there are two importantly distinct normative relations that can be referred to using phrases like ‘X is obligated to Y,’ ‘Y has a right against X,’ or ‘X wronged Y.’ When we say that I am obligated to you not to read your diary, one thing we might mean is that I am subject to a deontological constraint against reading your diary that gives me a non‐instrumental, agent‐relative reason not to do so, and which you are (...) typically in a unique position to waive with consent. I call this first relation the constraint relation. A second thing we might mean is that you are in a position to fittingly hold me personally accountable for reading your diary by demanding that I not read your diary, resenting me if I do so without excuse, and deciding whether to forgive me for this afterwards. I call this second relation the accountability relation. Though these two kinds of directed obligation often coincide, I argue that they are extensionally dissociable and play different normative roles. We cannot provide an adequate theory of ‘obligation to’ until we recognize that this phrase denotes not one relation, but two. (shrink)

Joint practical deliberation is the activity of deciding together what to do. In this dissertation, I argue that several speech acts that we can use to alter our moral obligations – promises, offers, requests, demands, commands, and agreements – are moves within joint practical deliberation. -/- The dissertation begins by investigating joint practical deliberation. The resulting account implies that joint deliberation is more flexible than we usually recognize, in two ways. First, we can make joint decisions not only about what (...) we will do together, but also about what you or I will do alone. Second, we can deliberate by means of two distinct methods: propose-and-ratify, in which a proposed joint decision must be explicitly accepted to come into effect, and propose-and-challenge, in which a proposed joint decision comes into force unless it is explicitly challenged. -/- Varying these parameters generates a botany of different kinds of proposals we can make within joint deliberation. When we look at these proposals more closely, we make a surprising discovery: for each kind of proposal we can make in joint practical deliberation, there is an everyday speech act with the very same properties. A certain kind of proposal to make a joint decision regarding one’s own actions has the same normative effects, under the same conditions, as a promise. One kind of proposal to make a joint decision regarding one’s addressee’s actions has all the essential features of a command; another kind of deliberative proposal – with the same content but a different method of evaluation – looks exactly like a request. And so on. -/- These similarities are too systematic to be coincidental. The only explanation, I argue, is that these ordinary speech acts are identical to their doppelgängers within joint practical deliberation. Promises and offers are proposals to make joint decisions about what I will do. Commands, demands, and requests are proposals to make joint decisions about what you will do. And agreements are joint decisions about what we will do. Call this the deliberative theory of these speech acts. -/- Considering each speech act in turn, I defend the deliberative theory by arguing that it provides a uniquely powerful explanation of its targets’ social and moral significance. Once we see how naturally these speech acts fall out of our practice of joint deliberation, theories that treat them as sui generis – as many moral philosophers now do – will come to seem redundant and nonexplanatory. Conversely, thinking of promises, offers, commands, demands, requests, and agreements as moves within joint practical deliberation allows us to give an elegant and generative theory of these phenomena that have confounded moral philosophers for so long. (shrink)