Michael Otsuka sets out to vindicate left-libertarianism, a political philosophy which combines stringent rights of control over one's own mind, body, and life with egalitarian rights of ownership of the world. Otsuka reclaims the ideas of John Locke from the libertarian Right, and shows how his Second Treatise of Government provides the theoretical foundations for a left-libertarianism which is both more libertarian and more egalitarian than the Kantian liberal theories of John Rawls and Thomas Nagel. Otsuka's libertarianism is founded on (...) a right of self-ownership. Here he is at one with 'right-wing' libertarians, such as Robert Nozick, in endorsing the highly anti-paternalistic and anti-moralistic implications of this right. But he parts company with these libertarians in so far as he argues that such a right is compatible with a fully egalitarian principle of equal opportunity for welfare. In embracing this principle, his own version of left-libertarianism is more strongly egalitarian than others which are currently well known. Otsuka argues that an account of legitimate political authority based upon the free consent of each is strengthened by the adoption of such an egalitarian principle. He defends a pluralistic, decentralized ideal of political society as a confederation of voluntary associations. Part I of Libertarianism without Inequality concerns the natural rights of property in oneself and the world. Part II considers the natural rights of punishment and self-defence that form the basis for the government's authority to legislate and punish. Part III explores the nature and limits of the powers of governments which are created by the consensual transfer of the natural rights of the governed. Libertarianism without Inequality is a book which everyone interested in political theory should read. (shrink)

We discuss two leading theories of distributive justice: egalitarianism and prioritarianism. We argue that while each has particular merits and shortcomings, egalitarian views more fully satisfy a key requirement of distributive justice: respect for both the unity of the individual and the separateness of persons.

The central role of mathematical modeling in modern evolutionary theory has raised a concern as to why and how abstract formulae can say anything about empirical phenomena of evolution. This Element introduces existing philosophical approaches to this problem and proposes a new account according to which evolutionary models are based on causal, and not just mathematical, assumptions. The novel account features causal models both as the Humean 'uniform nature' underlying evolutionary induction and as the organizing framework that integrates mathematical and (...) empirical assumptions into a cohesive network of beliefs that functions together to achieve epistemic goals of evolutionary biology. (shrink)

I argue that prioritarianism cannot be assessed in abstraction from an account of the measure of utility. Rather, the soundness of this view crucially depends on what counts as a greater, lesser, or equal increase in a person’s utility. In particular, prioritarianism cannot accommodate a normatively compelling measure of utility that is captured by the axioms of John von Neumann and Oskar Morgenstern’s expected utility theory. Nor can it accommodate a plausible and elegant generalization of this theory that has been (...) offered in response to challenges to von Neumann and Morgenstern. This is, I think, a theoretically interesting and unexpected source of difficulty for prioritarianism, which I explore in this article. (shrink)

Most deontologists find bedrock in the Pauline doctrine that it is morally objectionable to do evil in order that good will come of it. Uncontroversially, this doctrine condemns the killing of an innocent person simply in order to maximize the sum total of happiness. It rules out the conscription of a worker to his or her certain death in order to repair a fault that is interfering with the live broadcast of a World Cup match that a billion spectators have (...) been enjoying. It rules out such sacrifice even if it would maximize the sum total of everyone's happiness. An act utilitarian, by contrast, would require the sacrifice of the one whenever this latter condition obtains, since such a utilitarian is committed to the view that one ought always to act so as to bring about the greatest sum total of happiness. An act utilitarian might, however, consistently hold that a large number of rather insignificant pleasures, such as that which a spectator derives from witnessing men in shorts running around and kicking a ball, is never sufficient to justify the infliction of a great harm on a single individual. 4 He might take such a position without abandoning utilitarianism by denying that the sum total of such minor pleasures could ever be sufficiently great to outweigh the harm of death to the one. Under the inspiration of John Stuart Mill, a utilitarian might draw a more general distinction between serious and trivial harms and pleasures and maintain that no amount of a trivial pleasure could ever amount to a sum of happiness that is greater than the disutility of a serious harm. (shrink)

For a prioritarian by contrast to a utilitarian, whether a certain quantity of utility falls within the boundary of one person's life or another's makes the following moral difference: the worse the life of a person who could receive a given benefit, the stronger moral reason we have to confer this benefit on this person. It would seem, therefore, that prioritarianism succeeds, where utilitarianism fails, to ‘take seriously the distinction between persons’. Yet I show that, contrary to these appearances, prioritarianism (...) fails, in ways strikingly parallel to those in which utilitarianism fails, to take this distinction seriously. In so doing, I draw on and develop an earlier critique of prioritarianism by disentangling and pressing two distinct separateness-of-persons objections offered there. One objection is that prioritarianism is insensitive to ‘prudential justifications’. The other is that it is insensitive to the competing claims of different individuals. (shrink)

Rawlsian justice as fairness is neither fundamentally luck egalitarian nor relational egalitarian. Rather, the most fundamental idea is that of society as a fair system of cooperation. Collective pensions provide a case study which illustrates the fruitfulness of conceiving justice in these latter terms. Those who have recently reached the age of majority do not now know how long they will live in retirement or how well any investments they try to save up for their retirement would fare. From the (...) perspective of the beginning of their working lives, it is therefore rational for each to enter into an agreement with others, who also do not yet know their fates, that, if one turns out to be among the unfortunate whose private pension pots would not have yielded enough for one’s retirement, one will receive much more in retirement, whereas those whose pension pots would have overflowed their retirements will receive somewhat less. These terms are to each person’s expected advantage, which is made possible by a fair sharing of the fruits of social cooperation which arise through the efficiencies reaped by the pooling of the risk of outliving what one could save for one’s retirement on one’s own. It is rational for each to agree to share one another’s fates by pooling risks across both space and time, on fair terms of social cooperation for mutual advantage. Even when collective pensions arise from, and are proportional to, a baseline of unequal income, they can be defended on grounds of reciprocity involving regard for one another as equals. (shrink)

We argue that there is a marked shift in the moral weight of an increment in a person's well-being when one moves from a case involving only intra-personal trade-offs to a case involving only inter-personal trads-offs. This shift, we propose, is required by the separateness of persons. We also argue that the Priority View put forward by Parfit cannot account for such a shift. We also outline two alternative views, an egalitarian view and a claims-based view, that can account for (...) this shift. (shrink)

An argument against Parfit's view (in his chapter of Reasons and Persons on five mistakes in moral mathematics) that, rather than maximizing the difference one makes as an individual, one should join that group whose members together make the most positive difference in cases involving imperceptible benefits. It is shown how Parfit's defence of this view has the problematic implication either (1) that each outcome is less beneficial than itself or (2) that "less beneficial than" is not transitive.

This article explores the intersection of philosophy and statistics by examining the philosophical assumptions underlying modern mathematical statistics from ontological and epistemological perspectives. Statistics holds interest for philosophers engaged with the problem of induction, as its mathematical apparatus serves as models for philosophical ideas. For instance, the much-discussed concepts of the uniformity of nature and natural kinds correspond to probability models and statistical models, which are fundamental to various statistical methods. Similarly, Dennett’s concept of a real pattern echoes the spirit (...) of various information criteria (such as AIC) used to determine the optimal level of complexity for maximizing a model’s predictive ability. Furthermore, the recent developments in machine learning models, such as deep learning, imply that these machines possess their own 'ontology,' which is potentially more complex and efficient at understanding the world than ours. This leads to a Quinean problem of radical translation between human and machine ontologies. We suggest that this issue is key to the successful application of AI technologies in our society. The other focus of this article is epistemology, where Bayesian and classical statistics are compared to internalist and externalist epistemologies, respectively. This comparison elucidates how and in what sense the statistical methods adopted in each camp are considered to justify scientific hypotheses and also sheds light on their epistemic problems. We conclude with a plea for more research and interdisciplinary dialogues between statistics and the philosophy of various traditions. (shrink)

Review of: DWORKIN, R., "Objectivity and Truth: You'd Better Believe It." Philosophy & Public Affairs, 25: 87–139.

ABSTRACT I believe that the first correspondence I received from Hillel Steiner was an email in 1998 in which he generously praised a recently-published article of mine and added: ‘I hope it’s not presumptuous of me to say “Welcome to the wonderful world of left-libertarianism!”’ The piece (Otsuka 1998) that prompted this unpresumptuous welcome was left-libertarian in spirit, as it was an attempt to reconcile self-ownership with equality. I was not yet convinced, however, that I was a left-libertarian, so it (...) was not clear at the time whether my exploration of this world was as a curious and sympathetic visitor or as someone who had just begun a period of permanent residency. It turned out to be the latter, and Hillel deserves much of the credit for my settlement in this world that he had himself rediscovered in the 1970s and elegantly reshaped during the past three decades through his essays that lead up to, constitute, and develop and extend his marvellous Essay on Rights (Steiner 1994). (shrink)

Ernst Mayr’s classical work on the nature of causation in biology has had a huge influence on biologists as well as philosophers. Although his distinction between proximate and ultimate causation recently came under criticism from those who emphasize the role of development in evolutionary processes, the formal relationship between these two notions remains elusive. Using causal graph theory, this paper offers a unified framework to systematically translate a given “proximate” causal structure into an “ultimate” evolutionary response, and illustrates evolutionary implications (...) of various kinds of causal mechanisms including epigenetic inheritance, maternal effects, and niche construction. These results not only reveal the essential interplay between proximate and ultimate causation in the study of evolution, but also provide a formal method to evaluate or discover non-standard or yet unknown evolutionary phenomena. (shrink)

I presented an earlier version of this paper to the Law and Philosophy Discussion Group in Los Angeles, whose members I would like to thank for their comments. In addition, I would also like to thank the following people for reading and providing written or verbal commentary on earlier drafts: Robert Mams, Rogers Albritton, G. A. Cohen, David Copp, Matthew Hanser, Craig Ihara, Brian Lee, Marc Lange, Derk Pereboom, Carol Voeller, and the Editors of Philosophy & Public Affairs. I owe (...) special thanks to Timothy Hall and Seana Shiffnn for their insightful and helpful comments. (shrink)

English version of: "Il personale e politico? Il confine fra pubblico e privato nella sfera della giustizia distributiva." --- Italian text published in Carter, Ian, Otsuka, Michael and Trincia, Francesco Saverio Discussione su "If You're an Egalitarian, How Come You're So Rich?" di G.A. Cohen. Iride, XIV. pp. 609-634. ISSN 1122-7893.

This article characterizes various species concepts in terms of set-theoretic models that license biological inferences and illustrates the logical connections among different species concepts. Species in this construal are abstract models, rather than biological or even tangible entities, and relate to individual organisms via representation, rather than the membership or mereological whole/part relationship. The proposal sheds new light on vexed issues of species and situates them within broader philosophical contexts of model selection, scientific representation, and scientific realism.

Cohen endorses the coercive taxation of the talented at a progressive rate for the sake of realizing equality. By contrast, he denies that it is legitimate for the state to engage in the 'Stalinist forcing' of people into one or another line of work in order to bring about a more egalitarian society. He rejects such occupational conscription on grounds of the invasiveness of the gathering and acting upon information regarding people's preferences for different types of work that would be (...) required to implement such a policy. More precisely, Cohen maintains that the presence versus the absence of such intrusion explains why such Stalinist forcing of the talented is unacceptable whereas the progressive taxation of their income is legitimate. I argue that Cohen's appeal to invasiveness does not adequately capture the moral repugnance of the state's conscripting people into work at a given occupation. I propose that a right to self-ownership, and that which explains such a right, provides a better explanation than Cohen's of why Stalinist forcing is objectionable, whereas progressive taxation is not. 1. (shrink)

This chapter provides a defense of a type of occupational pension, known as “collective defined contribution”, which is based on the idea that it is possible to limit the employer’s liability to nothing more than a set contribution while retaining many of the benefits of the collectivization of risks of a traditional defined benefit pension. CDC can be defended against a freedom-based objection from the right via an appeal to the following Hobbesian voluntarist justification: CDC constitutes a “Leviathan of Leviathans” (...) into which it is rational for workers to choose to associate in order to tame longevity and investment risks. CDC pensions that arise from and mirror existing income inequalities can also be defended against an egalitarian objection from the left, by demonstration that they can be grounded in Rawlsian principles of reciprocity and property-owning democracy. (shrink)

Mike Otsukaʼs book aspires to do more than its title discloses. Libertarianism without Inequality (Oxford University Press, 2003) does not merely aim to reconcile liberty and equality (that is handled without remainder in the first chapter) but to draw the outlines of a complete, and distinctly Lockean, political theory. Rather than starting from first principles, Otsuka explores several specific issues only loosely connected to each other, hoping that these might add up to a complete political vision. Though the discussion is (...) clearly tinted in Lockean colours, his conclusions are always provocative and difficult to swallow, even for modern disciples of Locke. Thus he argues for the following theses. (shrink)

Scientific conflicts often stem from differences in the conceptual framework through which scientists view and understand their own field. In this chapter, I analyze the ontological and methodological assumptions of three traditions in evolutionary biology, namely, Ernst Mayr’s population thinking, the gene-centered view of the Modern Syn thesis, and the Extended Evolutionary Synthesis. Each of these frameworks presupposes a different account of "evolutionary causes," and this discrepancy prevents mutual understanding and objective evaluation in the recent contention surrounding the EES. From (...) this perspective, the chapter characterizes the EES research program as an attempt to introduce causal structures beyond genes as additional units of evolution, and compares its research methodology and objectives with those of the traditional MS framework. (shrink)

This is the second of three volumes of posthumously collected writings of G. A. Cohen, who was one of the leading, and most progressive, figures in contemporary political philosophy. This volume brings together some of Cohen's most personal philosophical and nonphilosophical essays, many of them previously unpublished. Rich in first-person narration, insight, and humor, these pieces vividly demonstrate why Thomas Nagel described Cohen as a "wonderful raconteur." The nonphilosophical highlight of the book is Cohen's remarkable account of his first trip (...) to India, which includes unforgettable vignettes of encounters with strangers and reflections on poverty and begging. Other biographical pieces include his valedictory lecture at Oxford, in which he describes his philosophical development and offers his impressions of other philosophers, and "Isaiah's Marx, and Mine," a tribute to his mentor Isaiah Berlin. Other essays address such topics as the truth in "small-c conservatism," who can and can't condemn terrorists, and the essence of bullshit. A recurring theme is finding completion in relation to the world of other human beings. Engaging, perceptive, and empathetic, these writings reveal a more personal side of one of the most influential philosophers of our time. (shrink)

I argue that the Lockean 'enough and as good' proviso provides support for egalitarian as opposed to libertarian or sufficientarian claims over worldly resources. These egalitarian claims apply to contemporary advanced industrial societies with money-based economies as well as primitive agrarian barter economies. But the full 'luck egalitarian' complement of equality of opportunity for welfare cannot be derived from a Lockean approach that focuses on our egalitarian claims to unowned bits of the world. For that, we need to reach beyond (...) Locke, and appeal to complaints of unfairness that have nothing in particular to do with our claims to worldly resources. (shrink)

• 15% of your grade: a short (1,500 word limit) paper due at 4 pm on September 26, on an assigned topic distributed two weeks in advance of the due date • 15% of your grade: an in-class mid-term exam on either October 23 or 30 (exact date TBC) • 30% of your grade: a longer (2,500 word limit) paper due by 4 pm on November 25, on an assigned topic distributed two weeks in advance of the due date • (...) 30% of your grade: a final exam on December 8 (1:00-2:50 p.m.) • 10% of your grade: participation in recitations.. (shrink)

All left-libertarians believe that natural resources should be governed by an egalitarian principle of distribution. In my own case, this belief gains its support from what I take to be the most defensible interpretation of the Lockean principle of justice in acquisition, according to which one may privatize land and other worldly resources in a state of nature so long as one leaves enough and as good for others. Axel Gosseries is right to press the question of the moral status (...) of worldly resources in a state of nature prior to private acquisition. For Locke, that status was one of common ownership, underwritten by God’s gift of the earth to humankind in common. For Léon Walras, to whom Vincent Bourdeau draws our attention, the earth both initially and inalienably belongs to humanity, and such collective ownership is grounded, not in theistic assumptions, but in the “scientific observation” that human beings are by nature social beings. By contrast, I regard the earth as initially unowned. This supposition should not, however, be understood, as it is by some, as the claim that each is equally free at the outset to privatize any bit of the world as he sees fit as a matter of right. Rather, it should be understood as an initial non-presumption of any rights with respect to the world. Rather than asserting the existence of rights that, as a moral default position, we have with respect to pristine wilderness, I am making a claim that is motivated by the methodological impropriety of presuming any rights with respect to the world at the outset. (shrink)

Section II of this article originated as a commentary on Véronique Munoz-Dardé’s “The Distribution of Numbers and the Comprehensiveness of Reasons.” I have delivered subsequent versions of this article at the University of Reading, UCLA, the University of Bristol, the University of Leeds, and the University of Oxford, and thank all who commented on those occasions. I am also grateful to G. A. Cohen, Iwao Hirose, Véronique Munoz-Dardé, Alex Voorhoeve, and the Editors of Philosophy & Public Affairs for their written (...) comments. (shrink)

Although I am neither a Nazi nor an anti-Semite (quite the contrary, in fact), I like the music of Richard Wagner. Why do I like his music? Mainly because I find it intoxicating. Intoxicate: To cause stupefaction, stimulation, or excitement by or as if by use of a chemical substance.) I admit that this is not a very deep reason. But I’m not very deep. (My years as an analytic philosopher would have drained any depths I may once have had.) (...) Although Mark Twain once described Wagner’s music as ‘better than it sounds’, it actually sounds better than it is, since intoxicating substances deceive our senses. (Think of the love potion in Tristan.) There are, I grant, other more serious reasons to like and to value Wagner’s music. Rather than rehearse any of them, I’m going to turn to an annotated list of some of my favorite recordings. (shrink)

In his restriction of prioritarianism to cases in which the same people would exist in all the possible outcomes, Parfit stakes out an unstable position, both for himself and more generally. There is no plausible rationale for a prioritarianism that is so restricted, which is consistent with the key features of Parfit’s elaboration and defence of this view and his other commitments. The principles that might be appealed to, in an attempt to justify such a restriction, give rise to a (...) different view—one that is sensitive to the presence or absence of the competing claims of different individuals, where both the existence and the magnitude of these claims are determined by gains and losses to individuals in a manner that is not fully captured by Parfit’s prioritarian weighting. (shrink)

For insightful comments, we thank G. A. Cohen, Barbara Fried, Leif Wenar, Andrew Williams, Jonathan Wolff, and the Editors of Philosophy & Public Affairs. 1. Barbara Fried, “Left-Libertarianism: A Review Essay,” Philosophy & Public Affairs 32 (2004): 66–92. This is a review of The Origins of Left-Libertarianism: An Anthology of His- torical Writings and Left-Libertarianism and Its Critics: The Contemporary Debate, both edited by Peter Vallentyne and Hillel Steiner (New York: Palgrave Publishers Ltd., 2000).

G. A. Cohen was one of the most gifted, influential, and progressive voices in contemporary political philosophy. At the time of his death in 2009, he had plans to bring together a number of his most significant papers. This is the first of three volumes to realize those plans. Drawing on three decades of work, it contains previously uncollected articles that have shaped many of the central debates in political philosophy, as well as papers published here for the first time. (...) In these pieces, Cohen asks what egalitarians have most reason to equalize, he considers the relationship between freedom and property, and he reflects upon ideal theory and political practice.Included here are classic essays such as "Equality of What?" and "Capitalism, Freedom, and the Proletariat," along with more recent contributions such as "Fairness and Legitimacy in Justice," "Freedom and Money," and the previously unpublished "How to Do Political Philosophy." On ample display throughout are the clarity, rigor, conviction, and wit for which Cohen was renowned. Together, these essays demonstrate how his work provides a powerful account of liberty and equality to the left of Ronald Dworkin, John Rawls, Amartya Sen, and Isaiah Berlin. (shrink)

In a recent review essay of a two volume anthology on left-libertarianism (edited by two of us), Barbara Fried has insightfully laid out most of the core issues that confront left-libertarianism. We are each left-libertarians, and we would like to take this opportunity to address some of the general issues that she raises. We shall focus, as Fried does much of the time, on the question of whether left-libertarianism is a well-defined and distinct alternative to existing forms of liberal egalitarianism. (...) More specifically, we shall address the following fundamental issues raised by Fried (and others): (1) Does the notion self-ownership have any determinate content? (2) What is the relation between self-ownership and world ownership? (3) How is left-libertarianism different from other forms of liberal egalitarianism (e.g., those of Rawls and Dworkin)? (shrink)

Article (English translation of French article in Raisons Politiques).

In this article for a symposium on Joseph Raz's Morality of Freedom, I argue, contrary to Raz, that there is a sound case for the regulation of diminishing principles by strictly egalitarian principles.

Property, or property rights, remains one of the most central elements in moral, legal, and political thought. It figures centrally in the work of figures as various as Grotius, Locke, Hume, Smith, Hegel and Kant. This collection of essays brings fresh perspective on property theory, from both legal and political theoretical perspectives, and is essential reading for anyone interested in the nature of property. Edited by two of the world's leading theorists of property, James Penner and Michael Otsuka, this volume (...) brings together essays which consider, amongst other topics, property and public law, the importance of legal forms in property theory, whether use or exclusion are most essential to our understanding of property, distributive justice, Lockean and Grotian theories, the common ownership of the Earth, and Confucian ideas of property. (shrink)

What follows is a sketch of three of the main claims of How to Pool Risks across Generations: The Case for Collective Pensions (Otsuka 2023) with which my symposium commentators critically engage: namely, that (1) by efficiently pooling risks across as well as within generations, (2) collective pensions can realize a form of Rawlsian reciprocity involving fair terms of cooperation for mutual advantage, (3) through the voluntary binding agreements of individuals to join a mutual association that provides social insurance. I (...) respond to their challenges to these claims in my replies that follow their contributions. (shrink)

I defend an incompatibilist 'Principle of Avoidable Blame' according to which one is blameworthy for performing an act of a given type only if one could instead have behaved in a manner for which one would have been blameless. First, I demonstrate that this principle is resistant to Harry Frankfurt-type counterexample. Second, I present a positive argument for this principle that appeals to the relation of blame to the 'reactive attitude' of indignation. Finally, I argue against the possibility of blamelessly (...) stumbling into a 'moral blind alley' where one would be blameworthy for whatever one is capable of doing. (shrink)

In "What We Owe to Each Other", T. M. Scanlon argues that one should save the greater number when faced with the choice between saving one life and two or more different lives. It is, Scanlon claims, a virtue of this argument that it does not appeal to the claims of groups of individuals but only to the claims of individuals. I demonstrate that this argument for saving the greater number, indeed, depends, contrary to what Scanlon says, upon an appeal (...) to the claim of a group of individuals to be saved. (shrink)

Over the past decade philosophers of biology have discussed whether evolutionary theory is a causal theory or a phenomenological study of evolution based solely on the statistical features of a population. This article reviews this controversy from three aspects, respectively concerning the assumptions, applications, and explanations of evolutionary theory, with a view to arriving at a definite conclusion in each contention. In so doing I also argue that an implicit methodological assumption shared by both sides of the debate, namely the (...) overconfidence in conceptual analysis as a tool to understand the scientific theory, is the real culprit that has both generated the problem and precluded its solution for such a long time. (shrink)

I shall formulate and motivate a left-libertarian theory of justice. Like the more familiar rightlibertarianism, it holds that agents initially fully own themselves. Unlike right-libertarianism, it holds that natural resources belong to everyone in some egalitarian manner. Left-libertarianism is, I claim, a plausible version of liberal egalitarianism because it is suitably sensitive to considerations of liberty, security, and equality.

Philosophy & Public Affairs, 34 (2006): 109-35.

The causal nature of evolution is one of the central topics in the philosophy of biology. The issue concerns whether equations used in evolutionary genetics point to some causal processes or purely phenomenological patterns. To address this question the present article builds well-defined causal models that underlie standard equations in evolutionary genetics. These models are based on minimal and biologically plausible hypotheses about selection and reproduction, and generate statistics to predict evolutionary changes. The causal reconstruction of the evolutionary principles shows (...) adaptive evolution as a genuine causal process, where fitness and selection are both causes of evolution. 1 Introduction2 The Philosophical Puzzle3 Causal Models4 Causal Foundations of Evolutionary Genetics4.1 Univariate quantitative genetics model4.1.1 The causal graph4.1.2 Structural equations4.1.3 Deriving evolutionary transition functions4.2 One-locus population genetics model5 Evolution as a Causal Process5.1 Selection as a causal process5.2 Causes of evolutionary change6 Conclusion. (shrink)

I thank the members of the Law and Philosophy Discussion Group in Los Angeles and those who attended a talk sponsored by the philosophy department at New York University, where I presented earlier versions of this paper. I would also like to thank G. A. Cohen, Stephen Munzer, Seana Shiffrin, Peter Vallentyne, Andrew Williams, and the editors of Philosophy & Public Affairs, who read and provided written commentary on earlier drafts.

In this article, I argue that it makes a moral difference whether an individual is worse off than she could have been. Here, I part company with consequentialists such as Parfit and side with contractualists such as Scanlon. But, unlike some contractualists, I reject the view that all that matters is whether a principle can be justified to each particular individual, where such a justification is attentive to her interests, complaints and other claims. The anonymous goodness of a distribution also (...) matters. My attempt to reconcile contractualist and consequentialist approaches proceeds via a serious of reflections on cases. (shrink)

The causal nature of evolution is one of the central topics in the philosophy of biology. The issue concerns whether equations used in evolutionary genetics point to some causal processes or purely phenomenological patterns. To address this question the present article builds well-defined causal models that underlie standard equations in evolutionary genetics. These models are based on minimal and biologically plausible hypotheses about selection and reproduction, and generate statistics to predict evolutionary changes. The causal reconstruction of the evolutionary principles shows (...) adaptive evolution as a genuine causal process, where fitness and selection are both causes of evolution. 1 Introduction2 The Philosophical Puzzle3 Causal Models4 Causal Foundations of Evolutionary Genetics4.1 Univariate quantitative genetics model4.1.1 The causal graph4.1.2 Structural equations4.1.3 Deriving evolutionary transition functions4.2 One-locus population genetics model5 Evolution as a Causal Process5.1 Selection as a causal process5.2 Causes of evolutionary change6 Conclusion. (shrink)