Repeatedly and successfully, the celebrated Harvard philosopher Robert Nozick has reached out to a broad audience beyond the confines of his discipline, addressing ethical and social problems that matter to every thoughtful person. Here Nozick continues his search for the connections between philosophy and "ordinary" experience. In the lively and accessible style that his readers have come to expect, he offers a bold theory of rationality, the one characteristic deemed to fix humanity's "specialness." What are principles for? asks Nozick. We (...) could act simply on whim, or maximize our self-interest and recommend that others do the same. As Nozick explores rationality of decision and rationality of belief, he shows how principles actually function in our day-to-day thinking and in our efforts to live peacefully and productively with each other. Throughout, the book combines daring speculations with detailed investigations to portray the nature and status of rationality and the essential role that imagination plays in this singular human aptitude. (shrink)

What can reason do for us and what can't it do? This is the question examined by Herbert A. Simon, who received the 1978 Nobel Prize in Economic Sciences "for his pioneering work on decision-making processes in economic organizations." The ability to apply reason to the choice of actions is supposed to be one of the defining characteristics of our species. In the first two chapters, the author explores the nature and limits of human reason, comparing and evaluating the major (...) theoretical frameworks that have been erected to explain reasoning processes. He also discusses the interaction of thinking and emotion in the choice of our actions. In the third and final chapter, the author applies the theory of bounded rationality to social institutions and human behavior, and points out the problems created by limited attention span human inability to deal with more than one difficult problem at a time. He concludes that we must recognize the limitations on our capabilities for rational choice and pursue goals that, in their tentativeness and flexibility, are compatible with those limits. (shrink)

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)

There are, broadly speaking, two ways to think about rationality, as defined in the following passage: ‘Reason’ for a long time meant the activity of understanding and assimilating the eternal ideas which were to function as goals for men. Today, on the contrary, it is not only the business but the essential work of reason to find means for the goals one adopts at any given time. To use what Horkheimer called objective reason, and what others have called expressive or (...) non–instrumental reason, is to reflect on one's goals, to attempt to determine what preferences one ought to hold. On the other hand, to use what Horkheimer called subjective reason is to ‘be concerned with means and ends, with the adequacy of procedures for purposes more or less taken for granted’, that is, to be instrumentally rational. This contrast between non-instrumental and instrumental reason is at the heart of many contemporary social and philosophical disputes. 1. (shrink)

Rationality has long been a central topic in philosophy, crossing standard divisions and categories. It continues to attract much attention in published research and teaching by philosophers as well as scholars in other disciplines, including economics, psychology, and law. The Oxford Handbook of Rationality is an indispensable reference to the current state of play in this vital and interdisciplinary area of study. Twenty-two newly commissioned chapters by a roster of distinguished philosophers provide an overview of the prominent views on rationality, (...) with each author also developing a unique and distinctive argument. (shrink)

Some authors reject what they call the "Simple View"---i.e., the principle that anyone who A's intentionally intends to A. My purpose here is to defend this principle. Rejecting the Simple View, I shall claim, forces us to assign to other mental states the functional role of intention: that of providing settled objectives to guide deliberation and action. A likely result is either that entities will be multiplied, or that the resultant account will invite reassertion of reductionist theories. In any case, (...) the account must drive a wedge between intention and practical rationality, by forbidding agents to intend goals it is rational to seek. Worse yet, the states it "substitutes" for intention turn out to be subject to the same constraints that prompted the substitution, and hence are indistinguishable from intention in the very respect in which they are alleged to differ. Thus, I shall argue, there is no evidence to justify such supposed distinctions, and the Simple View is to be preferred. (shrink)

It is a commonplace that in making decisions agents often have to juggle competing values, and that no choice will maximise satisfaction of them all. However, the prevailing account of these cases assumes that there is always a single ranking of the agent's values, and therefore no unresolvable conflict between them. Isaac Levi denies this assumption, arguing that agents often must choose without having balanced their different values and that to be rational, an act does not have to be optimal, (...) only what Levi terms 'admissible'. This book explores the consequences of denying the assumption and develops a general approach to decision-making under unresolved conflict. Professor Levi discusses conflicts of value in several domains - those arising in moral dilemmas, the drawing of scientific inferences, decisions taken under uncertainty, and in social choice. In each of these he adapts his theoretical framework, showing how conflict may often be reduced though not always altogether eliminated. (shrink)

This 1989 book is intended as an introductory survey of the philosophy of the social sciences. It is essentially a work of exposition which offers a toolbox of mechanisms - nuts and bolts, cogs and wheels - that can be used to explain complex social phenomena. Within a brief compass, Jon Elster covers a vast range of topics. His point of departure is the conflict we all face between our desires and our opportunities. How can rational choice theory help us (...) understand our motivation and behaviour? More significantly, what happens when the theory breaks down but we still cleave to a belief in the power of the rational? Elster describes the fascinating range of forms of irrationality - wishful thinking, the phenomenon of sour grapes, discounting the future in noncooperative behaviour. This is a remarkably lucid and comprehensive introduction to the social sciences for students of political science, philosophy, sociology and economics. (shrink)

This article examines the nature of rationality. The domain of rationality is customarily divided into the theoretical and the practical. Whereas theoretical or epistemic rationality is concerned with what it is rational to believe, and sometimes with rational degrees of belief, practical rationality is concerned with what it is rational to do, or intend or desire to do. This article raises some of the main issues relevant to philosophical discussion of the nature of rationality. Discussions of the nature of practical (...) rationality and reason concern norms of choice, and it seems that if such norms are not arbitrary, arguments over what those norms are must ultimately be a theoretical matter. Furthermore, this article explores rationality's role in and relation to other domains of inquiry: psychology, gender, personhood, language, science, economics, law, and evolution. (shrink)

Modern theory of rationality has truly grown into a science of its own. Still, the general topic remained a genuinely philosophical one. This essay is concerned with giving a brief overview. Section 2 explains the fundamental scheme of all rationality assessments. With its help, a schematic order of the main questions concerning the theory of rationality can be given; the questions turn out to be quite unevenly addressed in the literature. Section 3 discusses the fundamental issue that the theory of (...) rationality seems to be both a normative and an empirical theory. Section 4, finally, shows how the unity of the theory of rationality can nevertheless be maintained. (shrink)

Henry Richardson argues that we can determine our ends rationally. He constructs a rich and original theory of how we can reason about our final goals. Richardson defuses the counter-arguments for the limits of rational deliberation, and develops interesting ideas about how his model might be extended to interpersonal deliberation of ends, taking him to the borders of political theory. Along the way Richardson offers illuminating discussions of, inter alia, Aristotle, Aquinas, Sidgwick, and Dewey, as well as the work of (...) several contemporary philosophers. (shrink)

First published in 1992. Routledge is an imprint of Taylor & Francis, an informa company.

It is relatively common for philosophers to doubt whether we have any reason to act as morality requires. But it is very difficult to find philosophers who are willing to doubt, in a similar way, the idea that we have reason to act as instrumental rationality requires; reason, that is, to take effective steps toward attaining the ends we have accepted as our own. The inference from the fact that a certain action is an effective means of satisfying an agent’s (...) ends to the conclusion that that agent has reason to perform that action is held by almost everyone to be, as it is sometimes said, automatic: once it is determined that the action in question bears the specified relation to one’s goals, nothing more needs to be shown. But fewer philosophers are willing to grant that morality possesses this sort of automatic reason-giving force. Rather, it is quite commonly held that some additional consideration needs to be cited in order to show that an agent has reason to act as she is morally required. The fact that an action is morally required, claim those who adhere to this type of position, is not enough in itself. (shrink)

EKONOMEN: Nej, det vi alla borde enas om är i stället att göra en rationell avvägning mellan olika samhällsmål. Vi har i själva verket genomfört flera mycket avancerade forskningsprojekt inom det nya området contingent valuation of violence, CVV. På grundval av noggranna analyser har vi t ex konstaterat att en våldtäkt bör värderas som en kostnad av 1237000 kronor, räknat i penningvärdet den 1 juli 2001.

It is argued that full-blown cooperation needs collective goals in a strong sense satisfying the "Collectivity Condition". According to this condition, a collective goal ist of the kind that necessarily, due of the goal-holders acceptance of the goal as their collective goal, if it is satisfied for one of the goal-holders it is satisfied for all the others. Not only collective goals but also other group-factors (such as possibly institutionalngroupmoden preferences and utilities) are argued to be relevant to rational cooperative (...) solutions of collective action dilemmas. (shrink)