This study uses techniques from economics to illuminate fundamental questions in ethics, particularly in the foundations of utilitarianism. Topics considered include the nature of teleological ethics, the foundations of decision theory, the value of equality and the moral significance of a person's continuing identity through time.

The 'Evolution of Cooperation' addresses a simple yet age-old question; If living things evolve through competition, how can cooperation ever emerge? Despite the abundant evidence of cooperation all around us, there existed no purely naturalistic answer to this question until 1979, when Robert Axelrod famously ran a computer tournament featuring a standard game-theory exercise called The Prisoner's Dilemma. To everyone's surprise, the program that won the tournament, named Tit for Tat, was not only the simplest but the most "cooperative" entrant. (...) This unexpected victory proved that cooperation - one might even say altruism - is mathematically possible and therefore needs no hidden hand or divine agent to create and sustain it. A great roadblock to the understanding of all sorts of behavior was at last removed. The updated edition includes an extensive new chapter on cooperation in cancer cells and among terrorist organizations. (shrink)

1 The Vicarious Affects and the Modalities of Unselfishness Sympathy as a "Moral Sentiment" This study belongs to the wider genus of what Adam Smith called ...

Virtue ethics is perhaps the most important development within late twentieth-century moral philosophy. Rosalind Hursthouse, who has made notable contributions to this development, here presents a full exposition and defense of her neo-Aristotelian version of virtue ethics. She shows how virtue ethics can provide guidance for action, illuminate moral dilemmas, and bring out the moral significance of the emotions.

Morals from Motives develops a virtue ethics inspired more by Hume and Hutcheson's moral sentimentalism than by recently-influential Aristotelianism. It argues that a reconfigured and expanded "morality of caring" can offer a general account of right and wrong action as well as social justice. Expanding the frontiers of ethics, it goes on to show how a motive-based "pure" virtue theory can also help us to understand the nature of human well-being and practical reason.

Game theory is the systematic study of interdependent rational choice. It should be distinguished from decision theory, the systematic study of individual (practical and epistemic) choice in parametric contexts (i.e., where the agent is choosing or deliberating independently of other agents). Decision theory has several applications to ethics (see Dreier 2004; Mele and Rawlings 2004). Game theory may be used to explain, to predict, and to evaluate human behavior in contexts where the outcome of action depends on what several agents (...) choose to do and where their choices depend on what others choose to do. (See the entry on game theory) Game theory consequently is relevant to ethics, and it is used in moral and political philosophy in a variety of ways. We shall concentrate on the influence and use of game theory in ethics and those parts of political theory involving norms or principles of justice, ignoring questions about political and legal institutions on the one hand and questions about issues dealing with moral virtues on the other. (shrink)

Applications of game theory to moral philosophy are impededby foundational issues and troublesome examples. In the first part of this paper,questions are raised about the appropriate game-theoretical frameworks for applications to moralphilosophy and about the proper interpretations of the theoretical devices employed inthese frameworks. In the second part, five examples that should be of particular interest to thoseinterested in the connections between ethics and game theory are delineated and discussed. Thefirst example comprises games in which there is an outcome unanimously (...) preferred to the``solution'' of the game, appropriately defined. The second comprises games whose solution callsfor different players to employ different strategies. The third comprises games whosesolution calls for players to adopt mixed strategies. The fourth comprises games whose solutionrequires players to cycle among a variety of strategies. The fifth comprises games whose solutionrequires players to discriminate in morally inappropriate ways. (shrink)

The doyen of living English philosophers, by these reflections, took hold of and changed the outlook of a good many other philosophers, if not quite enough. He did so, essentially, by assuming that talk of freedom and responsibility is talk not of facts or truths, in a certain sense, but of our attitudes. His more explicit concern was to look again at the question of whether determinism and freedom are consistent with one another -- by shifting attention to certain personal (...) rather than moral attitudes, first of all gratitude and resentment. In the end, he arrived at a kind of Compatibilist or, as he says, Optimist conclusion. That is no doubt a recommendation but not the largest recommendation of this splendidly rich piece of philosophy. (shrink)

In this book, I make use of an idea from economics to suggest how noble human tendencies might not only have survived the ruthless pressures of the material world, but actually have been nurtured by them.

Virtue ethics is currently one of three major approaches in normative ethics. It may, initially, be identified as the one that emphasizes the virtues, or moral character, in contrast to the approach that emphasizes duties or rules (deontology) or that emphasizes the consequences of actions (consequentialism). Suppose it is obvious that someone in need should be helped. A utilitarian will point to the fact that the consequences of doing so will maximize well-being, a deontologist to the fact that, in doing (...) so the agent will be acting in accordance with a moral rule such as “Do unto others as you would be done by” and a virtue ethicist to the fact that helping the person would be charitable or benevolent. (shrink)

Auf der Basis einer Klärung des Begriffs des Vertrauens zu klären werden mit dem Vertrauen verbundenen sozialen Probleme analysiert. Es wird argumentiert, dass Vertrauen emotionalen Charakter trägt, dass es eine gemeinsame normative Basis und eine teilnehmende Haltung der sozialen Akteure zueinander voraussetzt. Die Argumentation entwickelt sich ausgehend von einer entscheidungstheoretischen Analyse typischer Situationen, die Vertrauen erfordern, aber in kritischer Auseinandersetzung mit einer Position, die glaubt, Vertrauen sei in einer solchen entscheidungstheoretischen Analyse bereits vollständig zu erfassen. Vertrauen wird als eine emotionale (...) Haltung charakterisiert. Darunter wird ein mentaler Zustand verstanden, der seinem Träger ein besonderes Bild der Welt vermittelt. Auf der Basis einer genaueren Charakterisierung der Weise, in der ein Vertrauender grundsätzlich die Welt und seinen Partner wahrnimmt, werden unterschiedliche Formen des Vertrauens in verschiedenen sozialen Kontexten, vom Vertrauen in Wirtschaft und Politik bis zu Vertrauen in engen persönlichen Beziehungen, Selbstvertrauen und Gottvertrauen, genauer analysiert. Abschließend wird argumentiert, dass die Fähigkeit, Mitmenschen auf der Basis akzeptabler Werte im Vertrauen gerecht werden zu können, eine Tugend im aristotelischen Sinne ist. Sie ist mit rationalem Handeln nicht nur vereinbar, sondern fördert unter gewissen Bedingungen eine rationale Bewältigung des Lebens. (shrink)

C. C. W. Taylor presents a clear and faithful new translation of one of the most famous and influential texts in the history of Western thought, accompanied by an analytical and critical commentary focusing on philosophical issues. In Books II to IV of the Nicomachean Ethics Aristotle gives his account of virtue of character, which is central to his ethical theory as a whole and a key topic in much modern ethical writing.

Introduction to the work David Hume described as the best of his many writings.

Brian Skyrms, author of the successful Evolution of the Social Contract has written a sequel. The book is a study of ideas of cooperation and collective action. The point of departure is a prototypical story found in Rousseau's A Discourse on Inequality. Rousseau contrasts the pay-off of hunting hare where the risk of non-cooperation is small but the reward is equally small, against the pay-off of hunting the stag where maximum cooperation is required but where the reward is so much (...) greater. Thus, rational agents are pulled in one direction by considerations of risk and in another by considerations of mutual benefit. Written with Skyrms's characteristic clarity and verve, this intriguing book will be eagerly sought out by students and professionals in philosophy, political science, economics, sociology and evolutionary biology. (shrink)

In this pithy and highly readable book, Brian Skyrms, a recognised authority on game and decision theory, investigates traditional problems of the social contract in terms of evolutionary dynamics. Game theory is skilfully employed to offer new interpretations of a wide variety of social phenomena, including justice, mutual aid, commitment, convention and meaning. The author eschews any grand, unified theory. Rather, he presents the reader with tools drawn from evolutionary game theory for the purpose of analysing and coming to understand (...) the social contract. The book is not technical and requires no special background knowledge. As such, it could be enjoyed by students and professionals in a wide range of disciplines: political science, philosophy, decision theory, economics and biology. (shrink)

Peter Vanderschraaf. Game Theory, Evolution and Justice.

An English language translation accompanies the original Greek text of Aristotle's book about the nature of the state, constitutions, revolutions, democracy, and oligarchy.

There is a simple view of motivation on which desires are like pain-killers; they come in different strengths, and their strength determines their efficacy. That is, the stronger a desire the greater its motivational force and, when two desires conflict, the stronger one “wins out” over the weaker. This view makes it puzzling how anyone could ever exhibit “strength of will” and act on the weaker desire, even when it is a desire for something more highly valued than what is (...) more strongly desired. When the will, as the agent of reason, enters the fray, an explanation of what a person is motivated enough to do must reckon not only with competing desires and their motivational forces, but also with the will’s capacity to be affected by different ones in ways not proportional to their force. However, this complication sheds little light, for if the will must bestow its stamp of approval on a desire before the desire leads to action, then, it would seem, motivational force should be measured by strength of effect on the will. And if that’s the way to measure motivational force, then, since by that measure one always acts on the desire that affects one’s will most, there is no problem of strength of will after all. But the problem seems real, however inapt the label. (shrink)

Rational choice and other accounts of trust base it in objective assessments of the risks and benefits of trusting. But rational subjects must choose in the light of what knowledge they have, and that knowledge determines their capacities for trust. This is an epistemological issue, but not at the usual level of the philosophy of knowledge. Rather, it is an issue of pragmatic rationality for a given actor. It is commonly argued that trust is inherently embedded in iterated, thick relationships. (...) But such relationships are merely one source of relevant knowledge in a street-level epistemological account. Early experience may heavily influence later capacity for trust. For example, bad experience may lead to lower levels of trust and therefore fewer opportunities for mutual gain. (shrink)

Concern for one's "reputation" has been introduced in recent game theory enabling theorists to demonstrate the rationality ofcooperative behavior in certain contexts. And these impressive results have been generalized to a variety of situations studied bystudents of business and business ethicists. But it is not clear that the notion of reputation employed has much explanatory power onceone sees what is meant. I also suggest that there may be some larger lessons about the notion of rationality used by decision theorists.

Abstract:Concern for one’s “reputation” has been introduced in recent game theory enabling theorists to demonstrate the rationality of cooperative behavior in certain contexts. And these impressive results have been generalized to a variety of situations studied by students of business and business ethicists. But it is not clear that the notion of reputation employed has much explanatory power once one sees what is meant. I also suggest that there may be some larger lessons about the notion of rationality used by (...) decision theorists. (shrink)

Unpopular in its day, David Hume's sprawling, three-volume A Treatise of Human Nature (1739-40) has withstood the test of time and had enormous impact on subsequent philosophical thought. Hume's comprehensive effort to form an observationally grounded study of human nature employs John Locke's empiric principles to construct a theory of knowledge from which to evaluate metaphysical ideas. A key to modern studies of eighteenth-century Western philosophy, the Treatise considers numerous classic philosophical issues, including causation, existence, freedom and necessity, and morality. (...) Unabridged republication of the edition originally published by Oxford at the Clarendon Press, London, 1888. Index. Appendix. (shrink)