Michael Otsuka

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.

The aim of this article is to refute Ronald Dworkin's claim that the provision of an equal opportunity to insure against risks is sufficient to render differences in people's circumstances that are the result of luck consistent with his theory of equality of resources. Section I addresses bad luck in the circumstances of individuals in the form of mental or physical incapacitation resulting from the vicissitudes of nature. Section II addresses bad luck which is the result of the choices of other individuals to give or bequeath.

The aim of this article is to display the main lines of a left-libertarian argument I defend in my book Libertarianism without Inequality. I argue that left-libertarian theory can coherently combine robust rights to self-ownership and egalitarian rights to world-ownership. This allows us to oppose paternalism and consequentialism while defending a strongly egalitarian conception of justice. The model I advocate is one of equality of opportunity for welfare, and I show what justifies this choice. I conclude by clarifying one of the consequences of my theory concerning the legitimacy conditions of political authority: viz. that admitting the existence of illiberal or hierarchical societies is consistent with full respect for people’s status as autonomous, rational agents and for the choices they make in fair circumstances of equality.

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).

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.

Should egalitarian justice be qualified by an agent-relative prerogative to act on a preference for—and thereby in a manner that gives rise to or preserves a greater than equal share of the goods of life for—oneself, one's family, loved ones, or friends as compared with strangers? Although many would reply that the answer to this question must be ‘yes’, I shall argue here that the case for such a prerogative to depart from equality is much less far-reaching than one might think. I have in mind a prerogative to depart from a specific form of equality: namely, equality of opportunity for such advantages as resources or welfare. I mean to refer to the strong form of equal opportunity elaborated and defended by Richard Arneson and G. A. Cohen whereby, roughly speaking, two people have equal opportunity for advantage if they face the same choices and will end up at the same level of advantage if they make the same choices.

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

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