Philip Pettit

The essays contained in this collection represent what seem to us to be canonical texts in contemporary political philosophy. But they only represent the contemporary canon, they do not exhaust it. Although this collection is two or perhaps three times the size of most, we nevertheless found that we had space for only a sample of the very many more texts and topics that we would like to have included.The collection is deliberately designed as a companion to our earlier Companion to Contemporary Political Philosophy (Oxford: Wiley-Blackwell, 1993; 2nd edition, 2012). We attempted to retain something of the same flavor in this collection, much the same scope of substantive concerns and much the same diversity of analytic styles. Inevitably, though, there is so much more surveyed in the Companion's many chapters than can be reprinted here. Interested readers are referred back to the Companion not only to situate the texts in the present collection but also for further readings and whole other sets of concerns.

A comprehensive guide to current thinking in political philosophy, this volume focuses especially on normative issues. The first part of the book consists of a series of extended essays on the contribution that a number of different disciplines - economics, history, legal studies, political science, sociology, and philosophy itself - have made and are making to current debates. Analyses of political ideologies form a separate section, followed by discussions of major concepts ranging from virtue and equality to sociobiology and environmentalism. Written by an international assembly of today's most distinguished figures in political philosophy, this volume provides an ideal text for course use.

In a recent paper on ‘The Many as One’, Lewis A. Kornhauser and Lawrence G. Sager look at an issue that we take to be of great importance in political theory. How far should groups in public life try to speak with one voice, and act with one mind? How far should public groups try to display what Ronald Dworkin calls integrity? We do not expect the many on the market to be integrated in this sense. But should we expect integration among the many in the legislature, for example, or among the many on the courts? We agree with Kornhauser and Sager about a number of their claims but think that they miss out on important detail and do not achieve a fully general perspective on the issues raised. Our own contribution is in three sections. We address, first, the nature of the integrity challenge; second, the range of cases in which the challenge arises; and third, the question of whether public groups should be designed and required to meet that challenge.

Suppose that the members of a group each hold a rational set of judgments on some interconnected questions, and imagine that the group itself has to form a collective, rational set of judgments on those questions. How should it go about dealing with this task? We argue that the question raised is subject to a difficulty that has recently been noticed in discussion of the doctrinal paradox in jurisprudence. And we show that there is a general impossibility theorem that that difficulty illustrates. Our paper describes this impossibility result and provides an exploration of its significance. The result naturally invites comparison with Kenneth Arrow's famous theorem (Arrow, 1963 and 1984; Sen, 1970) and we elaborate that comparison in a companion paper (List and Pettit, 2002). The paper is in four sections. The first section documents the need for various groups to aggregate its members' judgments; the second presents the discursive paradox; the third gives an informal statement of the more general impossibility result; the formal proof is presented in an appendix. The fourth section, finally, discusses some escape routes from that impossibility.

The ``doctrinal paradox'' or ``discursive dilemma'' shows that propositionwise majority voting over the judgments held by multiple individuals on some interconnected propositions can lead to inconsistent collective judgments on these propositions. List and Pettit (2002) have proved that this paradox illustrates a more general impossibility theorem showing that there exists no aggregation procedure that generally produces consistent collective judgments and satisfies certain minimal conditions. Although the paradox and the theorem concern the aggregation of judgments rather than preferences, they invite comparison with two established results on the aggregation of preferences: the Condorcet paradox and Arrow's impossibility theorem. We may ask whether the new impossibility theorem is a special case of Arrow's theorem, or whether there are interesting disanalogies between the two results. In this paper, we compare the two theorems, and show that they are not straightforward corollaries of each other. We further suggest that, while the framework of preference aggregation can be mapped into the framework of judgment aggregation, there exists no obvious reverse mapping. Finally, we address one particular minimal condition that is used in both theorems – an independence condition – and suggest that this condition points towards a unifying property underlying both impossibility results.

Imagine a human society, perhaps in pre-history, in which people were generally of a psychological kind with us, had the use of natural language to communicate with one another, but did not have any properly moral concepts in which to exhort one another to meet certain standards and to lodge related claims and complaints. According to The Birth of Ethics, the members of that society would have faced a set of pressures, and made a series of adjustments in response, sufficient to put them within reach of ethical concepts. Without any planning, they would have more or less inevitably evolved a way of using such concepts to articulate desirable patterns of behavior and to hold themselves and one another responsible to those standards. Sooner or later, they would have entered ethical space. While this central claim is developed as a thesis in conjectural history or genealogy, the aim of the exercise is philosophical. Assuming that it explains the emergence of concepts and practices that are more or less equivalent to ours, the story offers us an account of the nature and role of morality. It directs us to the function that ethics plays in human life and alerts us to the character in virtue of which it can serve that function. The emerging view of morality has implications for the standard range of questions in meta-ethics and moral psychology, and enables us to understand why there are divisions in normative ethics like that between consequentialist and Kantian approaches.

ONE way t0 defend narrow content is to produce a sentence 0f the form ‘S believes that P’, and show that this sentence is true 0f S if and 0nly if it is true 0f any duplicate from the skin in, any doppclgangcr, of S. N0toriously, this is hard to d0. Twin Earth examples are pervasivc.1 Another way to defend narrow content; is t0 show that Only 2. narrow notion can play thc causal explanatory r01c we require 0f contcnt in 2. properly scicntiicm psychology 0r cognitive science. Notoriously, this is hard t0 d0. The considerations—mcthod010gicaI solipsism, the principle 0f autonomy, 0r what:cvcr—invokcd to show that a broad notion 0f content cannot..

JP argue that expressivists must admit that becoming competent with ethical utterances involves learning to make them only when one believes one has the relevant attitude. For expressivists hold that communicating our attitudes is the function of ethical utterances, in which case sincerity demands that we not utter an ethical sentence unless we believe we have the relevant attitude. So (b) is false, as long as we suppose that this commitment, as reflected in well-entrenched and clear-cut (henceforth, 'robust' abbreviates 'well-entrenched and clear-cut') conventions, means that ethical utterances express one's belief that one has the relevant attitude. This, in turn, means that (a) is false, if we grant that a belief expressed in virtue of such conventions provides the utterance's truth-conditions.

It is tempting to think that the ideals of freedom and harmony—the ideals of a free society on the one side, a harmonious society on the other—are in conflict. But the appearance of conflict disappears once they are each properly understood. People live in freedom only if they securely avoid interference; people live in harmony only if they securely avoid having to live in resentment at the power of others. And the security implied in each ideal requires broadly the same institutions and practices; their demands are more or less convergent.