Population Ethics

Edited by Johan E. Gustafsson (University of York, Institute for Futures Studies, University of Texas at Austin)
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  1. Friendships of Scale: Applying Scaling Laws to Interpersonal Relationships.Walter Barta - manuscript
    Here we will argue that different kinds of friendships follow different kinds of scaling laws. First, we will review Aristotle’s three types of friendship. Second, we will review three different types of scaling laws. Third, we will show how the three types of friendship roughly map on to the three types of scaling laws. After this, we will discuss some of the consequences of the scaling laws of friendship. We hope that the use of these abstract scaling laws to describe (...)
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  2. Indeterminate Dualism against Repugnance.Walter Barta - manuscript
    An indeterminate version of Henry Sidgwick’s “Dualism of Practical Reason” may offer a solution to Derek Parfit’s “Repugnant Conclusion”. Here we will outline the problem of Sidgwick’s Dualism and how to resolve it within the framework of practical reason and the problem of Parfit’s Repugnance and why it is irresoluble within the framework of pure utilitarianism. Then we will argue how Sidgwick’s Dualism, under certain formulations of indeterminacy, specifically under those Indeterminacy Views advanced by David Phillips (and others), implies a (...)
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  3. Some Potential Loopholes for Welfarist Axiology.Walter Barta - manuscript
    DRAFT In what follows, we will attempt to point out two technical loopholes in the proof of the “Impossibility Theorem for Welfarist Axiologies” as proposed by Gustaf Arrhenius (Arrhenius, 2000). The two problems arise from different principles, one from an application of the “Addition Principle” and one from an application of the “Dominance Principle” after a counterintuitive combination of the “No Repugnant/Anti-Egalitarian Conclusion” criteria, the former non-fatal and latter fatal. We will show that these problems arise via two methodologies. 1) (...)
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  4. A Polynomial Approximation Method for Welfarist Axiology.Walter Barta - manuscript
    DRAFT Several philosophers have suggested that it is impossible to formulate a theory of population ethics that simultaneously satisfies all of the necessary conditions set by our ethical intuitions (Arrhenius, 2000; Blackorby et al., 2004). However, we will attempt to demonstrate that, using the Stone-Weierstrass method, starting from scratch with a completely underspecified polynomial approximation function for commensurable cardinal utility (used here as a synonym for welfare) in a domain of commodities and populations, there are possible sets of functions that (...)
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  5. Sorites arguments, a myth of genius, and overpopulation.Terence Rajivan Edward - manuscript
    This paper responds to Theron Pummer’s distinction between Sorites arguments and repugnant conclusion arguments by presenting a Sorites overpopulation argument. Also I present a Sorites argument in favour of myths of genius.
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  6. The repugnant conclusion can be avoided with moral intuitions intact: A lesson in order.Steven Kerr - manuscript
    The repugnant conclusion poses a conundrum in population ethics that has evaded satisfactory solution for four decades. In this article, I show that the repugnant conclusion can be avoided without sacrificing any moral intuitions. The resulting framework satisfies Parfit's requirements for `theory X'. This is achieved using non-Archimedean orders, which admit the possibility of pairs of goods for which no amount of one is better than a single unit of the other. I show that with minimal assumptions, not only are (...)
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  7. (1 other version)The weight of suffering.Andreas Mogensen - manuscript
    How should we weigh suffering against happiness? This paper highlights the existence of an argument from intuitively plausible axiological principles to the striking conclusion that in comparing different populations, there exists some depth of suffering that cannot be compensated for by any measure of well-being. In addition to a number of structural principles, the argument relies on two key premises. The first is the contrary of the so-called Reverse Repugnant Conclusion. The second is a principle according to which the addition (...)
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  8. Share the Sugar.Christian Tarsney, Harvey Lederman & Dean Spears - manuscript
    We provide a general argument against value incomparability, based on a new style of impossibility result. In particular, we show that, against plausible background assumptions, value incomparability creates an incompatibility between two very plausible principles for ranking lotteries: a weak "negative dominance" principle (to the effect that Lottery 1 can be better than Lottery 2 only if some possible outcome of Lottery 1 is better than some possible outcome of Lottery 2) and a weak form of ex ante Pareto (to (...)
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  9. A Non-Identity Dilemma for Person-Affecting Views.Elliott Thornley - manuscript
    Person-affecting views in population ethics state that (in cases where all else is equal) we’re permitted but not required to create people who would enjoy good lives. In this paper, I present an argument against every possible variety of person-affecting view. The argument takes the form of a dilemma. Narrow person-affecting views must embrace at least one of three implausible verdicts in a case that I call ‘Expanded Non-Identity.’ Wide person-affecting views run into trouble in a case that I call (...)
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  10. (1 other version)Non-Additive Axiologies in Large Worlds.Christian J. Tarsney & Teruji Thomas - 2020
    Is the overall value of a world just the sum of values contributed by each value-bearing entity in that world? Additively separable axiologies (like total utilitarianism, prioritarianism, and critical level views) say 'yes', but non-additive axiologies (like average utilitarianism, rank-discounted utilitarianism, and variable value views) say 'no'. This distinction is practically important: additive axiologies support 'arguments from astronomical scale' which suggest (among other things) that it is overwhelmingly important for humanity to avoid premature extinction and ensure the existence of a (...)
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  11. Population Ethics under Risk.Gustaf Arrhenius & H. Orri Stefánsson - forthcoming - Social Choice and Welfare.
    Population axiology concerns how to evaluate populations in terms of their moral goodness, that is, how to order populations by the relations “is better than” and “is as good as”. The task 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. So far, this field has largely ignored issues about uncertainty and the conditions that have been discussed mostly pertain (...)
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  12. Non-Archimedean population axiologies.Calvin Baker - forthcoming - Economics and Philosophy.
    Non-Archimedean population axiologies – also known as lexical views – claim (i) that a sufficient number of lives at a very high positive welfare level would be better than any number of lives at a very low positive welfare level and/or (ii) that a sufficient number of lives at a very low negative welfare level would be worse than any number of lives at a very high negative welfare level. Such axiologies are popular because they can avoid the (Negative) Repugnant (...)
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  13. Discounting future health.Hilary Greaves - forthcoming - In Norheim Emanuel Jamison Johansson Millum Otterson Ruger and Verguet (ed.), Global health priority-setting: Cost-effectiveness and beyond. Oxford University Press.
    In carrying out cost-benefit or cost-effective analysis, a discount rate should be applied to some kinds of future benefits and costs. It is controversial, though, whether future health is in this class. I argue that one of the standard arguments for discounting (from diminishing marginal returns) is inapplicable to the case of health, while another (favouring a pure rate of time preference) is unsound in any case. However, there are two other reasons that might support a positive discount rate for (...)
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  14. Moral uncertainty about population ethics.Hilary Greaves & Toby Ord - forthcoming - Journal of Ethics and Social Philosophy.
    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.
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  15. Prudential Longtermism.Johan E. Gustafsson & Petra Kosonen - forthcoming - In Jacob Barrett, Hilary Greaves & David Thorstad (eds.), Essays on Longtermism. Oxford University Press.
    According to Longtermism, our acts’ expected influence on the expected value of the world is mainly determined by their effects in the far future. There is, given total utilitarianism, a straightforward argument for Longtermism due to the enormous number of people that might exist in the future, but this argument does not work on person-affecting views. In this paper, we will argue that these views might also lead to Longtermism if Prudential Longtermism is true. Prudential Longtermism holds for a person (...)
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  16. Paradoxes of Infinite Aggregation.Frank Hong & Jeffrey Sanford Russell - forthcoming - Noûs.
    There are infinitely many ways the world might be, and there may well be infinitely many people in it. These facts raise moral paradoxes. We explore a conflict between two highly attractive principles: a Pareto principle that says that what is better for everyone is better overall, and a statewise dominance principle that says that what is sure to turn out better is better on balance. We refine and generalize this paradox, showing that the problem is faced by many theories (...)
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  17. An Identity Crisis in Philosophy.Samuel Kahn - forthcoming - Argumenta.
    The following seems to be a truism in modern day philosophy: No agent can have had other parents (IDENTITY). IDENTITY shows up in discussions of moral luck, parenting, gene editing, and population ethics. In this paper, I challenge IDENTITY. I do so by showing that the most plausible arguments that can be made in favor of IDENTITY do not withstand critical scrutiny. The paper is divided into four sections. In the first, I document the prevalence of IDENTITY. In the second, (...)
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  18. Asymmetries of Value-Based Reasons.Philip Li - forthcoming - Australasian Journal of Philosophy.
    Many have offered accounts of the procreative asymmetry, the claim that one has no moral reason to create a life just because it would be happy, but one has moral reason not to create a life just because it would be miserable. I suggest a new approach. Instead of looking at the procreative asymmetry on its own, we can situate it within a broader landscape of asymmetries. Specifically, there are two other analogous asymmetries in the prudential and epistemic domains. The (...)
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  19. Extensive Measurement in Social Choice.Jacob M. Nebel - forthcoming - Theoretical Economics.
    Extensive measurement is the standard measurement-theoretic approach for constructing a ratio scale. It involves the comparison of objects that can be concatenated in an additively representable way. This paper studies the implications of extensively measurable welfare for social choice theory. We do this in two frameworks: an Arrovian framework with a fixed population and no interpersonal comparisons, and a generalized framework with variable populations and full interpersonal comparability. In each framework we use extensive measurement to introduce novel domain restrictions, independence (...)
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  20. What calibrating variable-value population ethics suggests.Dean Spears & H. Orri Stefánsson - forthcoming - Economics and Philosophy:1-12.
    Variable-Value axiologies avoid Parfit’s Repugnant Conclusion while satisfying some weak instances of the Mere Addition principle. We apply calibration methods to two leading members of the family of Variable-Value views conditional upon: first, a very weak instance of Mere Addition and, second, some plausible empirical assumptions about the size and welfare of the intertemporal world population. We find that such facts calibrate these two Variable-Value views to be nearly totalist, and therefore imply conclusions that should seem repugnant to anyone who (...)
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  21. Path Independence and a Persistent Paradox of Population Ethics.Rush T. Stewart - forthcoming - Journal of Philosophy.
    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 (...)
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  22. Egyptians, Aliens, and Okies: Against the Sum of Averages.Christian Tarsney, Michael Geruso & Dean Spears - forthcoming - Utilitas:1-7.
    Grill (2023) defends the Sum of Averages View (SAV), on which the value of a population is found by summing the average lifetime welfare of each generation or birth cohort. A major advantage of SAV, according to Grill, is that it escapes the Egyptology objection to average utilitarianism. But, we argue, SAV escapes only the most literal understanding of this objection, since it still allows the value of adding a life to depend on facts about other, intuitively irrelevant lives. Moreover, (...)
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  23. Critical-Set Views, Biographical Identity, and the Long Term.Elliott Thornley - forthcoming - Australasian Journal of Philosophy.
    Critical-set views avoid the Repugnant Conclusion by subtracting some constant from the welfare score of each life in a population. These views are thus sensitive to facts about biographical identity: identity between lives. In this paper, I argue that questions of biographical identity give us reason to reject critical-set views and embrace the total view. I end with a practical implication. If we shift our credences towards the total view, we should also shift our efforts towards ensuring that humanity survives (...)
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  24. Existential Risk, Astronomical Waste, and the Reasonableness of a Pure Time Preference for Well-Being.S. J. Beard & Patrick Kaczmarek - 2024 - The Monist 107 (2):157-175.
    In this paper, we argue that our moral concern for future well-being should reduce over time due to important practical considerations about how humans interact with spacetime. After surveying several of these considerations (around equality, special duties, existential contingency, and overlapping moral concern) we develop a set of core principles that can both explain their moral significance and highlight why this is inherently bound up with our relationship with spacetime. These relate to the equitable distribution of (1) moral concern in (...)
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  25. Smart Healthy Age-Friendly Environments (SHAFE) Bridging Innovation to Health Promotion and Health Service Provision.Vincenzo de Luca, Hannah Marston, Leonardo Angelini, Nadia Militeva, Andrzej Klimczuk, Carlo Fabian, Patrizia Papitto, Joana Bernardo, Filipa Ventura, Rosa Silva, Erminia Attaianese, Nilufer Korkmaz, Lorenzo Mercurio, Antonio Maria Rinaldi, Maurizio Gentile, Renato Polverino, Kenneth Bone, Willeke van Staalduinen, Joao Apostolo, Carina Dantas & Maddalena Illario - 2024 - In Andrzej Klimczuk (ed.), Intergenerational Relations: Contemporary Theories, Studies, and Policies. London: IntechOpen. pp. 201–226.
    A number of experiences have demonstrated how digital solutions are effective in improving quality of life (QoL) and health outcomes for older adults. Smart Health Age-Friendly Environments (SHAFE) is a new concept introduced in Europe since 2017 that combines the concept of Age-Friendly Environments with Information Technologies, supported by health and community care to improve the health and disease management of older adults and during the life-course. This chapter aims to provide an initial overview of the experiences available not only (...)
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  26. Why prevent human extinction?James Fanciullo - 2024 - Philosophy and Phenomenological Research 109 (2):650-662.
    Many of us think human extinction would be a very bad thing, and that we have moral reasons to prevent it. But there is disagreement over what would make extinction so bad, and thus over what grounds these moral reasons. Recently, several theorists have argued that our reasons to prevent extinction stem not just from the value of the welfare of future lives, but also from certain additional values relating to the existence of humanity itself (for example, humanity’s “final” value, (...)
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  27. The Need for Merely Possible People.Johan Gustafsson - 2024 - Journal of Ethics and Social Philosophy 28 (2):230-241.
    W. V. Quine wished to restrict the interests that matter to those of actual people. Actual-Population Utilitarianism is a version of utilitarianism where, following Quine, only the interests of actual people matter. It is well known that ethical theories of this kind, which depend on what is actual, typically lead to normative variance. In this paper, I put forward a new objection to Actual-Population Utilitarianism. I present a case in which Actual-Population Utilitarianism prescribes choices that are worse for everyone whose (...)
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  28. Intergenerational Relations: Contemporary Theories, Studies, and Policies.Andrzej Klimczuk (ed.) - 2024 - London: IntechOpen.
    Intergenerational Relations - Contemporary Theories, Studies, and Policies, concentrates on actual discussions around various aspects of interactions that occur between people from different age groups and generations. The authors present studies related to four sets of challenges crucial for relationships between children, young adults, middle-aged adults, and older adults. These challenges include social and cultural challenges, economic and technological challenges, environmental challenges, and political and legal challenges. The volume also addresses issues important for the global, national, regional, and local application (...)
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  29. Social Aspects of Ageing: Selected Challenges, Analyses, and Solutions.Andrzej Klimczuk (ed.) - 2024 - London: IntechOpen.
    Social Aspects of Ageing - Selected Challenges, Analyses, and Solutions, focuses on the key challenges underlined by the United Nations during the Decade of Healthy Ageing (2021-2030). The authors introduce studies in areas crucial for older people, their families, and communities, such as combatting ageism, age-friendly environments, and care provision. The volume also examines issues linked to the global, national, regional, and local implementation of age-specific and intergenerational solutions, initiatives, and programs towards achieving the United Nations Sustainable Development Goals (SDGs). (...)
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  30. Risk, Non-Identity, and Extinction.Kacper Kowalczyk & Nikhil Venkatesh - 2024 - The Monist 107 (2):146–156.
    This paper examines a recent argument in favour of strong precautionary action—possibly including working to hasten human extinction—on the basis of a decision-theoretic view that accommodates the risk-attitudes of all affected while giving more weight to the more risk-averse attitudes. First, we dispute the need to take into account other people’s attitudes towards risk at all. Second we argue that a version of the non-identity problem undermines the case for doing so in the context of future people. Lastly, we suggest (...)
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  31. Impossible Ethics: Do Population Ethical Impossibility Results Support Moral Skepticism and/or Anti‐Realism?Victor Moberger - 2024 - Pacific Philosophical Quarterly 105 (3):370-391.
    In this paper, I discuss two different metaethical challenges based on population ethical impossibility results. According to the anti‐realist challenge, the results pose a serious threat to the existence of objective moral facts. According to the skeptical challenge, the results pose a serious threat to the reliability of our moral intuitions. My aim is to systematically explore and evaluate these challenges. In addition to clarifying the issues, I argue that population ethical impossibility results do not in fact support any anti‐realist (...)
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  32. Should longtermists recommend hastening extinction rather than delaying it?Richard Pettigrew - 2024 - The Monist 107 (2):130-145.
    Longtermism is the view that the most urgent global priorities, and those to which we should devote the largest portion of our resources, are those that focus on (i) ensuring a long future for humanity, and perhaps sentient or intelligent life more generally, and (ii) improving the quality of the lives that inhabit that long future. While it is by no means the only one, the argument most commonly given for this conclusion is that these interventions have greater expected goodness (...)
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  33. Identified Person "Bias" as Decreasing Marginal Value of Chances.H. Orri Stefánsson - 2024 - Noûs 58 (2):536-561.
    Many philosophers think that we should use a lottery to decide who gets a good to which two persons have an equal claim but which only one person can get. Some philosophers think that we should save identified persons from harm even at the expense of saving a somewhat greater number of statistical persons from the same harm. I defend a principled way of justifying both judgements, namely, by appealing to the decreasing marginal moral value of survival chances. I identify (...)
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  34. The Monstrous Conclusion.Luca Stroppa - 2024 - Synthese 203 (6):1-24.
    This paper introduces the Monstrous Conclusion, according to which, for any population, there is a better population consisting of just one individual (the Monster). The Monstrous Conclusion is deeply counterintuitive. I defend a version of Prioritarianism as a particularly promising population axiology that does not imply the Monstrous Conclusion. According to this version of Prioritarianism, which I call Asymptotic Prioritarianism, there is diminishing marginal moral importance of individual welfare that can get close to, but never quite reach, some upper limit. (...)
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  35. Too Easy, Too Good, Too Late?Alexander Dietz - 2023 - Philosophers' Imprint 23 (1).
    Plausibly, one important part of a good life is doing work that makes a contribution, or a positive difference to the world. In this paper, however, I explore contribution pessimism, the view that people will not always have adequate opportunities for making contributions. I distinguish between three interestingly different and at least initially plausible reasons why this view might be true: in slogan form, things might become too easy, they might become too good, or we might be too late. Now, (...)
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  36. Unbounded Utility.Zachary Goodsell - 2023 - Dissertation, University of Southern California
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  37. The Interpersonal Comparative View of Welfare: Its Merits and Flaws.Jonas Harney - 2023 - The Journal of Ethics 27 (3):369-391.
    According to the person-affecting view, the ethics of welfare should be cashed out in terms of how the individuals are affected. While the narrow version fails to solve the non-identity problem, the wide version is subject to the repugnant conclusion. A middle view promises to do better – the Interpersonal Comparative View of Welfare (ICV). It modifies the narrow view by abstracting away from individuals’ identities to account for interpersonal gains and losses. The paper assesses ICV’s merits and flaws. ICV (...)
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  38. How to Assess Claims in Multiple-Option Choice Sets.Jonas Harney & Jake Khawaja - 2023 - Philosophy and Public Affairs 51 (1):60-92.
    Particular persons have claims against being made worse off than they could have been. The literature, however, has focused primarily on only two-option cases; yet, these cases fail to capture all of the morally relevant factors, especially when a person’s existence is in question. This paper explores how to assess claims in multiple-option choice sets. We scrutinize the only extant proposal, offered by Michael Otsuka, which we call the Weakening View. In light of its problems, we develop an alternative: the (...)
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  39. Pessimism and procreation.Daniel Pallies - 2023 - Philosophy and Phenomenological Research 108 (3):751-771.
    The pessimistic hypothesis is the hypothesis that life is bad for us, in the sense that we are worse off for having come into existence. Suppose this hypothesis turns out to be correct — existence turns out to be more of a burden than a gift. A natural next thought is that we should stop having children. But I contend that this is a mistake; procreation would often be permissible even if the pessimistic hypothesis turned out to be correct. Roughly, (...)
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  40. Average Utilitarianism Implies Solipsistic Egoism.Christian J. Tarsney - 2023 - Australasian Journal of Philosophy 101 (1):140-151.
    ABSTRACT Average utilitarianism and several related axiologies, when paired with the standard expectational theory of decision-making under risk and with reasonable empirical credences, can find their practical prescriptions overwhelmingly determined by the minuscule probability that the agent assigns to solipsism—that is, to the hypothesis that there is only one welfare subject in the world, namely, herself. This either (i) constitutes a reductio of these axiologies, (ii) suggests that they require bespoke decision theories, or (iii) furnishes an unexpected argument for ethical (...)
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  41. The procreation asymmetry, improvable-life avoidance and impairable-life acceptance.Elliott Thornley - 2023 - Analysis 83 (3):517-526.
    Many philosophers are attracted to a complaints-based theory of the procreation asymmetry, according to which creating a person with a bad life is wrong (all else equal) because that person can complain about your act, whereas declining to create a person who would have a good life is not wrong (all else equal) because that person never exists and so cannot complain about your act. In this paper, I present two problems for such theories: the problem of impairable-life acceptance and (...)
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  42. Papers in Population Ethics.Elliott Thornley - 2023 - Dissertation, University of Oxford
    This thesis consists of a series of papers in population ethics: a subfield of normative ethics concerned with the distinctive issues that arise in cases where our actions can affect the identities or number of people of who ever exist. Each paper can be read independently of the others. In Chapter 1, I present a dilemma for Archimedean views in population axiology: roughly, those views on which adding enough good lives to a population can make that population better than any (...)
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  43. On theory X and what matters most.Simon Beard & Patrick Kaczmarek - 2022 - In Jeff McMahan, Timothy Campbell, Ketan Ramakrishnan & Jimmy Goodrich (eds.), Ethics and Existence: The Legacy of Derek Parfit. New York, NY: Oxford University Press. pp. 358-386.
    One of Derek Parfit’s greatest legacies was the search for Theory X, a theory of population ethics that avoided all the implausible conclusions and paradoxes that have dogged the field since its inception: the Absurd Conclusion, the Repugnant Conclusion, the Non-Identity Problem, and the Mere Addition Paradox. In recent years, it has been argued that this search is doomed to failure and no satisfactory population axiology is possible. This chapter reviews Parfit’s life’s work in the field and argues that he (...)
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  44. Was evolution worth it?Guy Kahane - 2022 - Philosophical Studies 180 (1):249-271.
    The evolutionary process involved the suffering of quadrillions of sentient beings over millions of years. I argue that when we take this into account, then it is likely that when the first humans appeared, the world was already at an enormous axiological deficit, and that even on favorable assumptions about humanity, it is doubtful that we have overturned this deficit or ever will. Even if there’s no such deficit or we can overturn it, it remains the case that everything of (...)
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  45. No Harm Done? An Experimental Approach to the Nonidentity Problem.Matthew Kopec & Justin Bruner - 2022 - Journal of the American Philosophical Association 8 (1):169-189.
    Discussions of the non-identity problem presuppose a widely shared intuition that actions or policies that change who comes into existence don't, thereby, become morally unproblematic. We hypothesize that this intuition isn’t generally shared by the public, which could have widespread implications concerning how to generate support for large-scale, identity-affecting policies relating to matters like climate change. To test this, we ran a version of the well-known dictator game designed to mimic the public's behavior over identity-affecting choices. We found the public (...)
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  46. Tiny Probabilities of Vast Value.Petra Kosonen - 2022 - Dissertation, Oxford University
    The topic of this thesis is how we should treat tiny probabilities of vast value. This thesis consists of six independent papers. Chapter 1 discusses the idea that utilities are bounded. It shows that bounded decision theories prescribe prospects that are better for no one and worse for some if combined with an additive axiology. Chapter 2, in turn, points out that standard axiomatizations of Expected Utility Theory violate dominance in cases that involve possible states of zero probability. Chapters 3–6 (...)
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  47. Totalism without Repugnance.Jacob M. Nebel - 2022 - In Jeff McMahan, Timothy Campbell, Ketan Ramakrishnan & Jimmy Goodrich (eds.), Ethics and Existence: The Legacy of Derek Parfit. New York, NY: Oxford University Press. pp. 200-231.
    Totalism is the view that one distribution of well-being is better than another just in case the one contains a greater sum of well-being than the other. Many philosophers, following Parfit, reject totalism on the grounds that it entails the repugnant conclusion: that, for any number of excellent lives, there is some number of lives that are barely worth living whose existence would be better. This paper develops a theory of welfare aggregation—the lexical-threshold view—that allows totalism to avoid the repugnant (...)
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  48. Sorites On What Matters.Theron Pummer - 2022 - In Jeff McMahan, Timothy Campbell, Ketan Ramakrishnan & Jimmy Goodrich (eds.), Ethics and Existence: The Legacy of Derek Parfit. New York, NY: Oxford University Press. pp. 498–523.
    Ethics in the tradition of Derek Parfit’s Reasons and Persons is riddled with sorites-like arguments, which lead us by what seem innocent steps to seemingly false conclusions. Take, for example, spectrum arguments for the Repugnant Conclusion that appeal to slight differences in quality of life. Several authors have taken the view that, since spectrum arguments are structurally analogous to sorites arguments, the correct response to spectrum arguments is structurally analogous to the correct response to sorites arguments. This sorites analogy is (...)
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  49. A dilemma for lexical and Archimedean views in population axiology.Elliott Thornley - 2022 - Economics and Philosophy 38 (3):395-415.
    Lexical views in population axiology can avoid the Repugnant Conclusion without violating Transitivity or Separability. However, they imply a dilemma: either some good life is better than any number of slightly worse lives, or else the ‘at least as good as’ relation on populations is radically incomplete. In this paper, I argue that Archimedean views face an analogous dilemma. I thus conclude that the lexical dilemma gives us little reason to prefer Archimedean views. Even if we give up on lexicality, (...)
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  50. Critical Levels, Critical Ranges, and Imprecise Exchange Rates in Population Axiology.Elliott Thornley - 2022 - Journal of Ethics and Social Philosophy 22 (3):382–414.
    According to Critical-Level Views in population axiology, an extra life improves a population only if that life’s welfare exceeds some fixed ‘critical level.’ An extra life at the critical level leaves the new population equally good as the original. According to Critical-Range Views, an extra life improves a population only if that life’s welfare exceeds some fixed ‘critical range.’ An extra life within the critical range leaves the new population incommensurable with the original. -/- In this paper, I sharpen some (...)
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