Online research in philosophy

This is a book on morality, rationality, and the interconnections between the two. In it, I defend a version of consequentialism that both comports with our commonsense moral intuitions and shares with other consequentialist theories the same compelling teleological conception of practical reasons.

Indeed, these are the sorts of reasons that Act Consequentialism recognises. But we can think of act-based reasons as a limiting kind of pattern-based reason, in which the pattern P is identical to the action A. Thus the idea of pattern-based reasons is more general than the idea of act-based reasons, and we can properly understand Act Consequentialism as a theory of pattern-based reasons. If pattern-based reasons exist, they are reasons for individual agents to act. They are not supposed to be reasons for group agents to act. It is controversial whether their existence depends on the existence of group agents.3 But even if it does, they are supposed to be reasons for individuals to act. It is very important not to think of them as reasons for groups to act. To help keep track of the individual agent whose reasons we are interested in, I will call her ‘the actor’.

Maximizing act consequentialism holds that actions are morally permissible if and only if they maximize the value of consequences—if and only if, that is, no alternative action in the given choice situation has more valuable consequences.1 It is subject to two main objections. One is that it fails to recognize that morality imposes certain constraints on how we may promote value. Maximizing act consequentialism fails to recognize, I shall argue, that the ends do not always justify the means. Actions with maximally valuable consequences are not always permissible. The second main objection to maximizing act consequentialism is that it mistakenly holds that morality requires us to maximize value. Morality, I shall argue, only requires that we satisfice (promote sufficiently) value, and thus leaves us a greater range of options than maximizing act consequentialism recognizes. The issues discussed are, of course, highly complex, and space limitations prevent me from addressing them fully. Thus, the argument presented should be understood merely as the outline of an argument.

“Perhaps the most common objection to consequentialism is this: it is impossible to know the future…This means that you will never be absolutely certain as to what all the consequences of your act will be…there may be long term bad effects from your act, side effects that were unforeseen and indeed unforeseeable…So how can we tell which act will lead to the best results overall – counting all the results? This seems to mean that consequentialism will be unusable as a moral guide to action. All the evidence available at the time of acting may have pointed to the conclusion that a given act was the right act to perform – and yet it may still turn out that what you did had horrible results, and so in fact was morally wrong. Indeed, if will never be possible to say for sure that any given act was right or wrong, since any event can continue to have further unseen effects down through history. Yet if it is impossible to tell whether any act is morally right or wrong, how can consequentialism possibly be a correct moral theory?”.

The paper proposes a new version of direct act consequentialism that will provide the same evaluations of the rightness of acts as indirect disposition, motive or character consequentialism, thus reconciling the coherence of direct consequentialism with the plausible results in cases of indirect consequentialism. This is achieved by seeing that adopting certain kinds of moral dispositions causally constrains our future acts, so that the maximizing acts ruled out by the disposition can no longer be chosen. Thus when we act we do the best we can, which is all that is required for rightness according to act consequentialism.

The Spohnian paradigm of ranking functions is in many respects like an order-of-magnitude reverse of subjective probability theory. Unlike probabilities, however, ranking functions are only indirectly—via a pointwise ranking function on the underlying set of possibilities W —defined on a field of propositions A over W. This research note shows under which conditions ranking functions on a field of propositions A over W and rankings on a language L are induced by pointwise ranking functions on W and the set of models for L, ModL, respectively.

A theory is agent neutral if it gives every agent the same set of aims and agent relative otherwise. Most philosophers take act-consequentialism to be agent-neutral, but I argue that at the heart of consequentialism is the idea that all acts are morally permissible in virtue of their propensity to promote value and that, given this, it is possible to have a theory that is both agent-relative and act-consequentialist. Furthermore, I demonstrate that agent-relative act-consequentialism can avoid the counterintuitive implications associated with utilitarianism while maintaining the compelling idea that it is never wrong to bring about the best outcome.

Maximizing act consequentialism holds that actions are morally permissible if and only if they maximize the value of consequences—if and only if, that is, no alternative action in the given choice situation has more valuable consequences.[i] It is subject to two main objections. One is that it fails to recognize that morality imposes certain constraints on how we may promote value. Maximizing act consequentialism fails to recognize, I shall argue, that the ends do not always justify the means. Actions with maximally valuable consequences are not always permissible. The second main objection to maximizing act consequentialism is that it mistakenly holds that morality requires us to maximize value. Morality, I shall argue, only requires that we satisfice (promote sufficiently) value, and thus leaves us a greater range of options than maximizing act consequentialism recognizes.

I argue that we should reject all traditional forms of act-consequentialism if moral rationalism is true. (Moral rationalism, as I define it, holds that if S is morally required to perform x, then S has decisive reason, all things considered, to perform x.) I argue that moral rationalism in conjunction with a certain conception of practical reasons (viz., the teleological conception of reasons) compels us to accept act-consequentialism. I give a presumptive argument in favor of moral rationalism. And I argue that act-consequentialism is best construed as a theory that ranks outcomes, not according to their impersonal value, but according to how much reason each agent has to desire that they obtain.

This is Chapter 5 of my Commonsense Consequentialism: Wherein Morality Meets Rationality. In this chapter, I argue that those who wish to accommodate typical instances of supererogation and agent-centered options must deny that moral reasons are morally overriding and accept both that the reason that agents have to promote their own self-interest is a non-moral reason and that this reason can, and sometimes does, prevent the moral reason that they have to sacrifice their self-interest so as to do more to promote the interests of others from generating a moral requirement. Furthermore, I argue that given that an act’s deontic status of both moral and non-moral reasons, the consequentialist must adopt dual-ranking act-consequentialism. I then defend dual-ranking act-consequentialism against a number of objections.