In the face of an impossibility result, some assumption must be relaxed. The Mere Addition Paradox is an impossibility result in population ethics. Here, I explore substantially weakening the decision-theoretic assumptions involved. The central finding is that the Mere Addition Paradox persists even in the general framework of choice functions when we assume Path Independence as a minimal decision-theoretic constraint. Choice functions can be thought of either as generalizing the standard axiological assumption of a binary “betterness” relation, or as providing (...) a general framework for a normative (rather than axiological) theory of population ethics. Path Independence, a weaker assumption than typically (implicitly) made in population ethics, expresses the idea that, in making a choice from a set of alternatives, the order in which options are assessed or considered is ethically arbitrary and should not affect the final choice. Since the result establishes a conflict between the relevant ethical principles and even very weak decision-theoretic principles, we have more reason to doubt the ethical principles. (shrink)

Derek Parfit's monumental 1984 book Reasons and Persons contains a little appendix called "What Makes Someone's Life Go Best," a mini-essay on well-being that has taken on a life of its own apart from the body to which it is attached. This paper serves as a critical guide to that appendix. Topics include: the nature of pleasure and pain and its relation to theories of well-being; the unrestricted desire-fulfillment theory and the problem of remote desires; whether a person's actual preferences (...) should determine their counterfactual well-being; summative vs. global desire-fulfillment theories; the single-life repugnant conclusion; and objective vs. subjective vs. hybrid theories of well-being. Opinions being defended include: that Parfit's solution to the problem of remote desires fails; that his view on actual preferences and counterfactual well-being is right; that his arguments for global over summative desire-fulfilment theories fail; and that the single-life repugnant conclusion should be accepted. (shrink)

Over the last fifty years, traditional farming has been replaced by industrial farming. Unlike traditional farming, industrial farming is abhorrently cruel to animals, environmentally destructive, awful for rural America, and wretched for human health. In this essay, I document those facts, explain why the industrial system has become dominant, and argue that we should boycott industrially produced meat. Also, I argue that we should not even kill animals humanely for food, given our uncertainty about which creatures possess a right to (...) life. In practice, then, we should be vegetarians. To underscore the importance of these issues, I use statistics to show that industrial farming has caused more pain and suffering than the Holocaust. (shrink)

This thesis in an invistigation into the concept of "harm" and its moral relevance. A common view is that an analysis of harm should include a counterfactual condition: an act harms a person iff it makes that person worse off. A common objection to the moral relevance of harm, thus understood, is the non-identity problem. -/- This thesis criticises the counterfactual condition, argues for an alternative analysis and that harm plays two important normative roles. -/- The main ground for rejecting (...) the counterfactual condition is that it has unacceptable consequences in cases of overdetermination and pre-emption. Several modifications to the condition are considered but all fail to solve this problem. -/- According to the alternative analysis to do harm is to perform an act which is responsible for the obtaining of a state of affairs which makes a person’s life go worse. It is argued that should be understood in terms of counterfactual dependence. This claim is defended against counterexamples based on redundant causation. An analysis of is also provided using the notion of a well-being function. It is argued that by introducing this notion it is possible to analyse contributive value without making use of counterfactual comparisons and to solve the non-identity problem. -/- Regarding the normative importance of harm, a popular intuition is that there is an asymmetry in our obligations to future people: that a person would have a life worth living were she to exist is not a reason in favour of creating that person while that a person would have a life not worth living is a reason against creating that person. It is argued that the asymmetry can be classified as a moral option grounded in autonomy. Central to this defence is the suggestion that harm is relevant to understanding autonomy. Autonomy involves partly the freedom to pursue one’s own aims as long as one does no harm. (shrink)

Conflicts between morality and prudence are often thought to pose a special problem because the normativity of moral considerations derives from a distinctively moral point of view, while the normativity of prudential considerations derives from a distinctively prudential point of view, and there is no way to ‘put together’ the two points of view. I argue that talk of points of view is a red herring, and that for any ‘prumoral’ conflict there is some or other more comprehensive value – (...) often nameless – that accounts for the relative normative weight of conflicting moral and prudential considerations. The rational resolution of conflict is possible only in virtue of a more comprehensive value that includes the conflicting moral and prudential considerations as parts. (shrink)

Nobody's going to object to the advice "Do the right thing", but that doesn't mean everyone's always going to follow it. Sometimes this is because of our volitional limitations; we cannot always bring ourselves to make the sacrifices that right action requires. But sometimes this is because of our cognitive limitations; we cannot always be sure of what is right. Sometimes we can't be sure of what's right because we don't know the non-normative facts. But sometimes, even if we were (...) to know all of the non-normative facts, we'd still not be sure about what's right, because we're uncertain about the normative reasons those facts give us. In this dissertation, I attempt to answer the question of what we're to do when we must act under fundamentally normative uncertainty. It's tempting to think that, in such circumstances, we should do what we regard as most probably right. I argue that this view is mistaken, for it is insensitive to how degrees of actions' values compare across different normative hypotheses; if an action is probably right, but, if wrong, is terribly, terribly, wrong, it may be rational not to do that action. A better answer is that we should do the action with the highest expected value. I spend the first part of the dissertation providing arguments for and rebutting arguments against this view of action under normative uncertainty. I spend the next part of the dissertation explaining what degrees of value are, and showing how they can be compared across normative hypotheses. In the remaining parts of the dissertation, I consider two questions related to our primary question -- first, what is one required, or obligated, to do under normative uncertainty; and second, what is it rational for one to do when one is not only normatively uncertain in the way we've been discussing, but also uncertain about what it is rational to do under this sort of normative uncertainty. (shrink)

How should we act when uncertain about the moral truth, or when trying to remain neutral between competing moral theories? This dissertation argues that some types of actions and policies are relatively likely to be approved by a very wide range of moral theories—even theories which have never yet been formulated, or which appear to cancel out one another's advice. For example, I argue that actions and policies which increase a moral agent's access to primary goods also tend to increase (...) that agent's likelihood of bringing about good consequences, even under varying and mutually incompatible hypotheses about what consequences count as "good". We therefore have a subjective, pro tanto moral reason to perform such actions and enact such policies—one whose justification does not require treating any particular theory as especially probable, but instead merely requires treating at least one at-least-partly consequentialist moral theory as an open hypothesis, and is therefore applicable even under conditions of moral uncertainty or moral neutrality. My discussion begins abstractly, but as it progresses it gradually applies its framework to increasingly concrete issues. I find that the justification of some liberal policies—in the classical sense of "liberal"—can be accomplished with significantly fewer moral assumptions than have traditionally been relied upon. (shrink)

Given the deep disagreement surrounding population axiology, one should remain uncertain about which theory is best. However, this uncertainty need not leave one neutral about which acts are better or worse. We show that as the number of lives at stake grows, the Expected Moral Value approach to axiological uncertainty systematically pushes one towards choosing the option preferred by the Total and Critical Level views, even if one’s credence in those theories is low.

According to Transitivity, if A is better than B, and B is better than C, then A is better than C. We may understand “better than” as short for any of the following: “intrinsically better than,” “all things considered better than,” “hedonically better than,” and “better for a person than.” The same puzzle arises on each interpretation. Transitivity seems entrenched in our conceptual scheme, if not analytically true; its failure implies, implausibly, that some possibilities cannot be ranked in terms of (...) value; scads of three-member sets inductively confirm it; and hypothetical money-pumpers coax its detractors out of house and home by proffering a series of trades—C for A, B for C and A for B (and then repeating the cycle)—for an endlessly accumulating price. Nevertheless, two highly plausible principles entail that Transitivity is false. (shrink)