la tesis clásica del daño afirma que un sujeto daña a otro cuando lo coloca en una peor situación de la que podría estar de otro modo. Sin embargo, algunas acciones causan consecuencias malas en determinados sujetos pero no los colocan en una condición peor de la que podrían estar de otro modo. En tales casos el no-comparativismo parece poder aportar la solución correcta desde que, para tales tesis dañar a otro es colocar a un sujeto en una condición mala. (...) En este trabajo se intentará mostrar que incluso tales aproximaciones son infructuosas, proponiendo, en su lugar una tesis combinada. (shrink)

While there is an extensive literature on how the precautionary principle should be interpreted and when precautions should be taken, relatively little discussion exists about the fair distribution of costs of taking precautions. We address this issue by proposing a general framework for deciding how costs of precautions should be shared, which consists of a series of default principles that are triggered according to desert, rights, and ability to pay. The framework is developed with close attention to the pragmatics of (...) how distributions will affect actual behaviours. It is intended to help decision-makers think more systematically about distributional consequences of taking precautionary measures, thereby to improve decision-making. Two case studies—one about a ban on turtle fishing in Costa Rica, and one about a deep-sea mining project in Papua New Guinea—are given to show how the framework can be applied. (shrink)

I present a new argument for the repugnant conclusion. The core of the argument is a risky, intrapersonal analogue of the mere addition paradox. The argument is important for three reasons. First, some solutions to Parfit’s original puzzle do not obviously generalize to the intrapersonal puzzle in a plausible way. Second, it raises independently important questions about how to make decisions under uncertainty for the sake of people whose existence might depend on what we do. And, third, it suggests various (...) difficulties for leading views about the value of a person’s life compared to her nonexistence. (shrink)

This article argues for the elimination of the concept of life worth living from philosophical vocabulary on three complementary grounds. First, the basic components of this concept suffer from multiple ambiguities, which hamper attempts to ground informative evaluative and classificatory judgments about the worth of life. Second, the criteria proposed to track the extension of the concept of life worth living rest on unsupported axiological assumptions and fail to identify precise and plausible referents for this concept. And third, the concept (...) of life worth living is not shown to serve any major evaluative or classificatory purpose besides those served by already available axiological concepts. By eliminating the concept of life worth living, philosophers will free themselves of the task of addressing ill-posed axiological questions and ground reflection about the worth of life on more rigorous conceptual foundations. (shrink)

Effective altruists recommend that we give large sums to charity, but by far their more central message is that we give effectively, i.e., to whatever charities would do the most good per dollar donated. In this paper, I’ll assume that it’s not wrong not to give bigger, but will explore to what extent it may well nonetheless be wrong not to give better. The main claim I’ll argue for here is that in many cases it would be wrong of you (...) to give a sum of money to charities that do less good than others you could have given to instead, even if it would not have been wrong of you not to give the money to any charity at all. I assume that all the charities under discussion here do positive good overall, do not cause harm, do not infringe rights, etc. What makes my main claim here particularly interesting is that it is inconsistent with what appears to be a fairly common assumption in the ethics of giving, according to which if it is not wrong of you to keep some sum of money for yourself, then it is likewise not wrong of you to donate it to any particular charity you choose. Roughly: if it’s up to you whether to donate the money, it’s also up to you where to donate the money. I challenge this common assumption. (shrink)

I argue that people are sometimes justified in participating in unjust wars. I consider a range of reasons why war might be unjust, including the cause which it is fought for, whether it is proportionate, and whether it wrongly uses resources that could help others in dire need. These considerations sometimes make fighting in the war unjust, but sometimes not. In developing these claims, I focus especially on the 2003 Iraq war.

Can an act harm someone—a future someone, someone who does not exist yet but will—if that person would never exist but for that very action? This is one question raised by the non-identity problem. Many would argue that the answer is No: an action harms someone only insofar as it is worse for her, and an action cannot be worse for someone if she would not exist without it. The first part of this paper contends that the plausibility of the (...) ‘no harm’ argument stems from an equivocation. The second half argues for an account of harm that is both causal and contrastive. Finally, the paper contends that the contrastive account disarms the no harm argument and furthermore neutralizes a related argument that has been problematic for some previously proposed solutions to the non-identity problem. (shrink)

As a response to climate change, geoengineering with solar radiation management has the potential to result in unjust harm. Potentially, this injustice could be ameliorated by providing compensation to victims of SRM. However, establishing a just SRM compensation system faces severe challenges. First, there is scientific uncertainty in detecting particular harmful impacts and causally attributing them to SRM. Second, there is ethical uncertainty regarding what principles should be used to determine responsibility and eligibility for compensation, as well as determining how (...) much compensation ought to be paid. Significant challenges loom for crafting a just SRM compensation system. (shrink)

It is sometimes claimed that as members of the species Homo sapiens we have a responsibility to promote the good of Homo sapiens itself (distinct from the good of its individual members). Lawrence Johnson has recently defended this claim as part of his approach to resolving the problem of future generations. We show that there are several difficulties with Johnson's argument, many of which are likely to attend any attempt to establish the moral considerability of Homo sapiens or species generally. (...) Further, even if Homo sapiens were morally considerable, this would not ground an adequate response to the problem of future generations. The sort of moral considerability that would be appropriate to Homo sapiens, or species generally, would not be as robust nor have the implications that many have supposed. (shrink)

The idea of geoengineering, or the intentional modification of the Earth's atmosphere to reverse the global warming trend, has entered a working theory stage, finding expression in a variety of proposed projects, such as launching reflective materials into the Earth's atmosphere, positioning sunshades over the planet's surface, depositing iron filings into the oceans to encourage phytoplankton blooms, and planting more trees, to name only a few.

Without needing to commit to any specific claims about what states of affairs have most agent-neutral value, we can nevertheless predict that states of affairs which are relatively valuable are also relatively likely to occur—on the grounds that, all else equal, at least some other agents are likely to recognize the value of those states of affairs, pursue them because they are valuable, and successfully bring them about as a consequence of that pursuit. This gives us a way to promote (...) value as such, rather than promoting it under some more tendentious description. We can predict that actions which help other people—or our own future selves—to recognize valuable states of affairs, actions which motivate them to pursue whatever states of affairs they believe to be valuable, or actions which help them succeed at their pursuits will, all else equal, have positive consequences. So we have a pro tanto reason to take such actions, and the subjective justification of that reason is independent of other moral claims. (shrink)

Our ambivalent attitudes toward the notion of ‘a life worth living’ present a philosophical puzzle: Why are we of two minds about the birth of a severely disabled child? Is the child’s life worth living or not worth living? Between these two apparently incompatible evaluative judgments, which is true? If one judgment is true and the other false, what makes us continue to find both evaluations appealing? Indeed, how can we manage to hold these inconsistent judgments simultaneously at all? I (...) critically examine two solutions to this puzzle: the hidden-indexical account and Velleman’s anti-realist account. I propose an alternative explanation which appeals to (a) state-given, as opposed to object-given, reasons for belief and (b) the distinction between belief and acceptance. I argue that (1) the fact that a severely disabled life is not worth living provides object-given reason to believe that that life is not worth living, but (2) after the birth of a severely disabled child, the psychological utility of positive evaluation gives us a state-given reason to believe that that child’s life is worth living, and a reason to accept that, in our relation with the child, her life is worth living. I conclude by drawing a practical lesson about wrongful life suits. (shrink)

According to the Asymmetry, it is wrong to bring a miserable child into existence but permissible not to bring a happy child into existence. When it comes to procreation, we don’t have complete procreative liberty. But we do have some discretion. The Asymmetry seems highly intuitive. But a plausible account of the Asymmetry has been surprisingly difficult to provide, and it may well be that most moral philosophers – or at least most consequentialists – think that all reasonable efforts to (...) provide such an account have by now been exhausted. In this paper, I argue that, despite the difficulties, the Asymmetry is too important to be set aside. I also note a handful of accounts of the Asymmetry that have been proposed and why they fail. It seems, for example, that it will not do to say that some people matter morally and others don’t, or that a person matters morally in some worlds but not others. My own conclusion is that, while we are bound to say all people matter morally – you, me and the merely possible – we are not bound to say that all their losses– or all ours– matter morally. We can instead distinguish between morally significant and insignificant losses, with the distinction between the two being a matter of where the loss is incurred in relation to the person who incurs it. This way of looking at things – which I call Variabilism– provides the basis for a plausible account of the Asymmetry. The availability of such an account suggests, I think, that our prospects for rescuing the Asymmetry are bright. (shrink)

The Asymmetry consists of two claims. (A) That a possible person's life would be abjectly miserable –less than worth living – counts against bringing that person into existence. But (B) that a distinct possible person's life would be worth living or even well worth living does not count in favour of bringing that person into existence. In recent years, the view that the two halves of the Asymmetry are jointly untenable has become increasingly entrenched. If we say all persons matter (...) morally whether they exist or not and on that basis try to explain the first half of the Asymmetry, we lose the second half of the Asymmetry. If we say that some persons do not matter morally and some do and on that basis try to explain the second half of the Asymmetry, we lose the first half of the Asymmetry – or else find ourselves with a principle that is either inconsistent or otherwise deeply troubled in some way that has nothing to do with the content of the Asymmetry itself. In this article, I propose an alternative approach to the Asymmetry which I will call Variabilism. By understanding each and every person, whether existing or not, to matter morally but variably– such that the moral significance of any loss incurred by any person is considered to depend, not on who incurs that loss and whether that person matters morally, but rather on where that loss is incurred in relation to the person who incurs it – we can both nicely ground the two halves of the Asymmetry and avoid the conceptual difficulties that have plagued competing approaches. (shrink)

This paper argues that we hold two key duties to future people: to leave them enough in an absolute sense, and to leave them their fair share. Even if we benefit people by bringing them into existence, we can wrongly exploit our position to take more than our share of benefits. As in paradigm cases of exploitation, just because future people might agree to the ‘bargain’, this does not mean that they receive enough.

Parfit's requirements for an ideal Theory X cannot be fully met since the Mere Addition Principle and Non-Antiegalitarianism imply the Repugnant Conclusion: Theory X does not exist. However, since the Repugnant Conclusion is really compelling, the Impersonal Total Principle should be adopted for impartial comparisons concerning future generations. Nevertheless, where our own interests are affected, we may yet choose to be partial, trading off our concern for future goodness with our self-interests. Theory X' meets all Parfit's requirements except the Mere (...) Addition Principle in less compelling cases. (shrink)

Much work in contemporary bioethics defends a broadly liberal view of human reproduction. I shall take this view to comprise (but not to be exhausted by) the following four claims.1 First, it is permissible both to reproduce and not to reproduce, either by traditional means or by means of assisted reproductive techniques such as IVF and genetic screening. Second, it is permissible either to reproduce or to adopt or otherwise foster an existing child to which one is not biologically related. (...) Third, it is permissible either to bring into existence a child with the greatest chance of a life of maximum human flourishing or to bring into existence a child with a life worth living but with less than the greatest chance of a life of maximum human flourishing. Fourth, it is impermissible to bring into existence a child whose life is either certain or likely to fall below some baseline of a human life minimally worth living. (shrink)

The question I address in this paper is whether and under what conditions it is morally right to bring a person into existence. I defend the commonsensical thesis that, other things being equal, it is morally wrong to create a person who will be below some threshold of quality of life, even if the life of this potential person, once created, will nevertheless be worth living. However commonsensical this view might seem, it has shown to be problematic because of the (...) so-called 'Non-Identity Problem'. Both utilitarian and rights-based approaches have been unable to provide a solution to this problem. I rest my thesis on two premises: that causing a disability or impairment in a future person is prima facie wrong, so long as we can avoid causing such a disability to that very person; and that reproduction, under normal conditions, is prima facie morally indifferent. From these two premises, I conclude that it is prima facie wrong to bring into existence a person with a non-trivial disability or impairment (which might be, nonetheless, compatible with a worthwhile life), even if the only available alternative is to remain childless. (shrink)

Ultimately this book provides a theory of intergenerational justice that is both intellectually robust and practical with wide applicability to law and policy.

In Derek Parfit's original formulation the Repugnant Conclusion is characterized as follows: “For any possible population of at least ten billion people, all with a very high quality of life, there must be some much larger imaginable population whose existence, if other things are equal, would be better even though its members have lives that are barely worth living” (Parfit 1984). The Repugnant Conclusion highlights a problem in an area of ethics which has become known as population ethics . The (...) last three decades have witnessed an increasing philosophical interest in questions such as “Is it possible to make the world a better place by creating additional happy creatures?” and “Is there a moral obligation to have children?” The main problem has been to find an adequate theory about the moral value of states of affairs where the number of people, the quality of their lives, and their identities may vary. Since, arguably, any reasonable moral theory has to take these aspects of possible states of affairs into account when determining the normative status of actions, the study of population ethics is of general import for moral theory. As the name indicates, Parfit finds the Repugnant Conclusion unacceptable and many philosophers agree. However, it has been surprisingly difficult to find a theory that avoids the Repugnant Conclusion without implying other equally counterintuitive conclusions. Thus, the question as to how the Repugnant Conclusion should be dealt with and, more generally, what it shows about the nature of ethics has turned the conclusion into one of the cardinal challenges of modern ethics. (shrink)

Drawing inspiration from the ethical pluralism of G. E. Moore's Principia Ethica, I contend that one empty world can be morally better than another. By ?empty? I mean that it is devoid of concrete entities (things that have a position in space or time). These worlds have no thickets or thimbles, no thinkers, no thoughts. Infinitely many of these worlds have laws of nature, abstract entities, and perhaps, space and time. These non-concrete differences are enough to make some of them (...) better than others. 1I thank Walter Sinnott-Armstrong, John Carroll, and Gideon Rosen for their comments and suggestions. (shrink)

This paper develops a form of moral actualism that can explain the procreative asymmetry. Along the way, it defends and explains the attractive asymmetry: the claim that although an impermissible option can be self-conditionally permissible, a permissible option cannot be self-conditionally impermissible.

The non-identity problem concerns actions that affect who exists in the future. If such an action is performed, certain people will exist in the future who would not otherwise have existed: they are not identical to any of the people who would have existed if the action had not been performed. Some of these actions seem to be wrong, and they seem to be wrong in virtue of harming the very future individuals whose existence is dependent on their having been (...) performed. The problem arises when it is argued that the actions do not harm these people—because the actions do not make them worse off than they would otherwise be.1 Consider: Radioactive Waste Policy: We are trying to decide whether to adopt a permissive radioactive waste policy. This policy would be less inconvenient to us than our existing practices. If we enact the newly-proposed policy, then we will cause there to be radioactive pollution that will cause illness and suffering. However, the policy will have such significant effects on public policy and industry functioning, that different people will exist in the future depending on whether we enact the policy. Two things should be emphasized. First, the illness and suffering caused will be very serious: deformed babies, children with burns from acid rain, and adults dying young from cancer. Second, the policy will affect who will exist in the future because our present practices invade people’s everyday lives, for example by affecting recycling practices in the home; these practices will change if the policy is adopted. Furthermore, whether we adopt the policy will determine which plants are built where, what jobs are available, and what trucks are on the road. These effects will create small differences in everyone’s lives which ultimately affect who meets whom and who conceives with whom, or at least when people conceive. This affects who exists in the future. (shrink)

After 50 years of debate, the ethics of aggregation has reached a curious stalemate, with both sides arguing that only their theory treats people as equals. I argue that, on the issue of equality, both sides are wrong. From the premise that “each counts for one,” we cannot derive the conclusion that “more count for more”—or its negation. The familiar arguments from equality to aggregation presuppose more than equality: the Kamm/Scanlon “Balancing Argument” rests on what social choice theorists call “(Positive) (...) Responsiveness,” Kamm’s “Aggregation Argument” assumes that “equal” lives are fungible, and Hsieh et al. have it that spreading goods broadly best approximates equality. In each case, the crucial premise is not equality itself but a further idea that Taurek, I argue, can safely reject. I conclude with a conjecture: there is no theory-neutral argument that settles the question of whether the numbers count. (shrink)

The book develops, defends, and applies an account of weighing reasons to resolve various issues in ethics. It tells you everything you ever wanted to know about weighing reasons and probably a lot of stuff you didn't want to know too. The excerpt provided here is the Table of Contents, the Introduction, and Chapter 1.

In this work, I scrutinize Leopold’s land ethic and Callicott’s interpretation of it both from normative and meta-ethical perspectives by making textual and conceptual analyses. Leopold suggests that an ethic which makes us responsible for the protection of whole nature is evolutionarily possible and ecologically necessary. Callicott tried to buttress Leopold’s land ethic by developing a nonanthropocentric axiology and some meta-principles. Moreover, in his view, Leopold’s views are not only compatible with nonanthropocentric axiology but also imply it. I show that (...) Leopold did not build the land ethic on nonanthropocentrism and he did not enforce attribution of intrinsic value to nature and its constituents. I argue that weak anthropocentrism is quite compatible with Leopold’s views, and it provides a way to maintain normative power of land ethic without being ecofascistic. Furthermore, I discuss that Leopold might not have objected attribution of intrinsic value to nonhuman beings although he primarily referred to instrumental values of nature. Moreover, I argue that Leopold preferred a middle position between the concepts of preservation and conservation. As a man of practical wisdom Leopold has always tried to find middle and practicable ways between opposing extremes to harmonize human realm with nonhuman one and to grow the embryo of the conservationist movement. Finally, I argue that Leopold’s land ethic is a human ethic which requires human moral agents to accept responsibility for protecting whole nature in order to attain good life. (shrink)

Provided we blame others accurately, is blaming them morally right even if we are guilty of similar wrongdoing ourselves? On the one hand, hypocrisy seems to render blame morally wrong, and unjustified; but on the other, even hypocritical blaming seems better than silence. I develop an account of the wrongness of hypocritical blaming which resolves this apparent dilemma. When holding others accountable for their moral failings, we ought to be willing to reason, together with them, about our own, similar failings. (...) Hypocrisy undermines this process of mutual deliberation. Thus, even if better than silence, hypocritical blaming is second-best, and that is why it is wrong. (shrink)

This paper offers a unified explanation for the procreation asymmetry and the non-identity thesis – two of the most intractable puzzles in population ethics. According to the procreation asymmetry, there are moral reasons not to create lives that are not worth living but no moral reasons to create lives that are worth living. I explain the procreation asymmetry by arguing that there are moral reasons to prevent the bad, but no moral reasons to promote the good. Various explanations for the (...) procreation asymmetry have failed to explain the non-identity thesis: if one could create a person with a good life or a different person with a better life, one has a moral reason to create the better life. I argue that reflections on the misfortune of unfulfilled potential allow us to circumvent the non-identity problem. (shrink)

Let’s say that an act requires Person-Affecting Justification if and only if some alternative would have been better for someone. So, Lucifer breaking Xavier’s back requires Person-Affecting Justification because the alternative would have been better for Xavier. But the story continues: While Lucifer evades justice, Xavier moves on and founds a school for gifted children. Xavier’s deepest values become identified with the school and its community. When authorities catch Lucifer, he claims no Person-Affecting Justification is needed: because the attack set (...) Xavier on his life’s path, it’s no longer true that the alternative would have been better by the standard of what Xavier now values most. An unappealingly paternalistic way to hold Lucifer to account is to discount Xavier’s preferences as merely adaptive. Instead, I propose understanding the persons of Person-Affecting Justification to be not persons but person stages. This allows us to hold Lucifer to account without having to discount Xavier’s actual preferences, and has interesting implications for compensatory justice, including making sense of reparations for historical wrongs. (shrink)

This dissertation investigates conceptions of responsibility at work in contemporary intergenerational nuclear waste policy. It argues that articulations of responsibility at work in current policy unduly privileges resemblance to the present as a condition for that responsibility holding as an intergenerational relation. The dissertation begins by arguing that current waste disposal practices depend on a view of responsibility contingent on the presumption that future generations will be minimally epistemologically, socially, and politically continuous with present generations. Extant policy is therefore found (...) to place an asymmetric and unjust burden on future generations. The dissertation thus concludes that responsibilities to future generations require that responsibility be thought prior to particular determinations of the possible identity of our inheritors. (shrink)

This article articulates and defends a dissolution of the so-called repugnant conclusion, which focuses on the notion of life worth living figuring both in Parfit's formulation of the repugnant conclusion and in most responses to such a conclusion. The proposed dissolution demonstrates that the notion of life worth living is plagued by multiple ambiguities and that these ambiguities, in turn, hamper meaningful debate about both the issue of whether the repugnant conclusion can be avoided and the issue of whether the (...) repugnant conclusion is actually repugnant. This result does not exclude that some modified versions of the repugnant conclusion may yield valuable insights about the value of populations and the tenability of different axiological/ethical theories. Still, if the proposed dissolution is correct, then the repugnant conclusion rests on an ill-defined notion and we lack the information required to assess the merits of the repugnant conclusion. (shrink)

Losing an arm to rescue a child from a burning building is supererogatory. But is losing an arm to save two children more supererogatory than losing two arms to save a single child? What factors make one act more supererogatory than another? I provide an innovative account of how to compare which of two acts is more supererogatory, and show the superiority of this account to its chief rival.

A number of philosophers have argued that if you care about how much goodness your actions generate, or how good the state-of-affairs you actions bring about are, then your attention should be directed towards the very far future. But many don’t care about how much goodness their actions generate, nor do they care about things like “states-of-affairs”. Amongst a multitude of things, many people care about how their actions impact individuals. And they also care about the sorts of justifications they (...) are able to offer for those actions. One moral theory which captures this moral viewpoint is contractualism. In this chapter, I argue that contractualism is, in large part, incompatible with longtermism – the view that, in many contexts, we ought to do that which will most improve the prospects of future people. I then discuss what advice, if any at all, contractualism can offer to the longtermist. (shrink)

This article provides an account of moral obligations that we have towards present generations, which require us to produce outcomes that are similar to those we would be required to produce if we had moral obligations to future generations. Discharging these duties enables us to secure the kinds of goods for future generations that we intuitively think we ought to provide in the absence of an answer to the non-identity problem. In this sense, the non- identity problem is avoided rather (...) than solved. Nevertheless, a significant upshot of this account is that it provides a basis for practical action in the face of theoretical uncertainty. (shrink)

We examine a general class of variable-value population principles. Our particular focus is on the extent to which such principles can avoid the repugnant and sadistic conclusions. We show that if a mild limit property is imposed, avoidance of the repugnant conclusion implies the sadistic conclusion. This result generalizes earlier observations by showing that they apply to a substantially larger class of principles. Our second theorem states that, under the limit property, the axiom of mere addition also conflicts with avoidance (...) of the repugnant conclusion. This result is a consequence of a similar observation that appears in the earlier literature. (shrink)

The Norwegian Oil Fund (‘Government Pension Fund – Global’) is worth over NOK 10.6 trillion (USD 1.15 USD trillion)1 making it the largest sovereign wealth fund in the world (Norges Bank Investment...

Consider three cases: -/- Turn: A trolley is about to kill five innocent strangers. You can turn the trolley onto me, saving the five and killing me. -/- Hurl: A trolley is about to kill five innocent strangers. You can hurl me at the trolley, saving the five and paralyzing me. -/- TurnHurl: A trolley is about to kill five innocent strangers. You can turn the trolley onto me, saving the five and killing me. You can instead hurl me at (...) the trolley, saving the five and paralyzing me. -/- Most find the following four claims intuitively plausible: -/- (1) It is permissible to turn the trolley onto me in Turn. (2) It is impermissible to hurl me at the trolley in Hurl. (3) It is impermissible to turn the trolley onto me in TurnHurl. (4) It is permissible to hurl me at the trolley in TurnHurl. -/- But how does turning go from permissible to impermissible, and hurling from impermissible to permissible, when both alternatives are available? I argue that such “secondary permissibility” claims are explained by contrastive consent. Even if I do not consent to being harmed, it is likely I’ll consent to being hurled at the trolley rather than being turned onto. (shrink)

Suppose that you prefer A to B, B to C, and C to A. Your preferences violate Expected Utility Theory by being cyclic. Money-pump arguments offer a way to show that such violations are irrational. Suppose that you start with A. Then you should be willing to trade A for C and then C for B. But then, once you have B, you are offered a trade back to A for a small cost. Since you prefer A to B, you (...) pay the small sum to trade from B to A. But now you have been turned into a money pump. You are back to the alternative you started with but with less money. This Element shows how each of the axioms of Expected Utility Theory can be defended by money-pump arguments of this kind. The Element also defends money-pump arguments from the standard objections to this kind of approach. This title is also available as Open Access on Cambridge Core. (shrink)

The (moral) permissibility of an act is determined by the relative weights of reasons, or so I assume. But how many weights does a reason have? Weight Monism is the idea that reasons have a single weight value. There is just the weight of reasons. The simplest versions hold that the weight of each reason is either weightier than, less weighty than, or equal to every other reason. We’ll see that this simple view leads to paradox in at least two (...) ways. We must complicate the picture somehow. I consider two candidate complications. The first, Parity Monism, is inspired by Ruth Chang’s suggestion that parity is a fourth comparative beyond the traditional three (>, <, =). This view complicates the single weight relation by allowing that the weights of reasons can be on a par. Unfortunately, Parity Monism resolves only one of the two paradoxes that afflict simple versions of Weight Monism. To resolve both paradoxes, we need our second candidate complication, Weight Pluralism. This view holds that reasons have at least two weight values (e.g., justifying weight and requiring weight) and these two values aren’t always equivalent. Parity is no substitute for Pluralism. (shrink)

Is an outcome where many people are saved and one person dies better than an outcome where the one is saved and the many die? According to the standard utilitarian justification, the former is better because it has a greater sum total of well-being. This justification involves a controversial form of moral aggregation, because it is based on a comparison between aggregates of different people's well-being. Still, an alternative justification—the Argument for Best Outcomes—does not involve moral aggregation. I extend the (...) Argument for Best Outcomes to show that any utilitarian evaluation can be justified without moral aggregation. (shrink)

There are plenty of classic paradoxes about conditional obligations, like the duty to be gentle if one is to murder, and about “supererogatory” deeds beyond the call of duty. But little has been said about the intersection of these topics. We develop the first general account of conditional supererogation, with the power to solve familiar puzzles as well as several that we introduce. Our account, moreover, flows from two familiar ideas: that conditionals restrict quantification and that supererogation emerges from a (...) clash between justifying and requiring reasons. (shrink)

John Taurek argues that, in a choice between saving the many or the few, the numbers should not count. Some object that this view clashes with the transitivity of ‘better than’; others insist the clash can be avoided. I defend a middle ground: Taurek cannot have transitivity, but that doesn’t doom his view, given a suitable conception of value. I then formalize and explore two conceptions: one context-sensitive, one multidimensional.