We explain what people think and do by citing their reasons, but how do such explanations work, and what do they tell us about the nature of reality? Contemporary efforts to address these questions are often motivated by the worry that our ordinary conception of rationality contains a kernel of supernaturalism-a ghostly presence that meditates on sensory messages and orchestrates behavior on the basis of its ethereal calculations. In shunning this otherworldly conception, contemporary philosophers have focused on the project of "naturalizing" the mind, viewing it as a kind of machine that converts sensory input and bodily impulse into thought and action. Eric Marcus rejects this choice between physicalism and supernaturalism as false and defends a third way. He argues that philosophers have failed to take seriously the idea that rational explanations postulate a distinctive sort of causation-rational causation. Rational explanations do not reveal the same sorts of causal connections that explanations in the natural sciences do. Rather, rational causation draws on the theoretical and practical inferential abilities of human beings. Marcus defends this position against a wide array of physicalist arguments that have captivated philosophers of mind for decades. Along the way he provides novel views on, for example, the difference between rational and nonrational animals and the distinction between states and events.

Prevailing economic theory presumes that agents act rationally when they make decisions, striving to maximize the efficient use of their resources. Psychology has repeatedly challenged the rational choice paradigm with persuasive evidence that people do not always make the optimal choice. Yet the paradigm has proven so successful a predictor that its use continues to flourish, fueled by debate across the social sciences over why it works so well. Intended to introduce novices to rational choice theory, this accessible, interdisciplinary book collects writings by leading researchers. The Limits of Rationality illuminates the rational choice paradigm of social and political behavior itself, identifies its limitations, clarifies the nature of current controversies, and offers suggestions for improving current models. In the first section of the book, contributors consider the theoretical foundations of rational choice. Models of rational choice play an important role in providing a standard of human action and the bases for constitutional design, but do they also succeed as explanatory models of behavior? Do empirical failures of these explanatory models constitute a telling condemnation of rational choice theory or do they open new avenues of investigation and theorizing? Emphasizing analyses of norms and institutions, the second and third sections of the book investigate areas in which rational choice theory might be extended in order to provide better models. The contributors evaluate the adequacy of analyses based on neoclassical economics, the potential contributions of game theory and cognitive science, and the consequences for the basic framework when unequal bargaining power and hierarchy are introduced.

This book contributes to the developing dialogue between cognitive science and social sciences. It focuses on a central issue in both fields, i.e. the nature and the limitations of the rationality of beliefs and action. The development of cognitive science is one of the most important and fascinating intellectual advances of recent decades, and social scientists are paying increasing attention to the findings of this new branch of science that forces us to consider many classical issues related to epistemology and philosophy of action in a new light. Analysis of the concept of rationality is a leitmotiv in the history of the social sciences and has involved endless disputes. Since it is difficult to give a precise definition of this concept, and there is a lack of agreement about its meaning, it is possible to say that there is a ‘mystery of rationality’. What is it to be rational? Is rationality merely instrumental or does it also involve the endorsement of values, i.e. the choice of goals? Should we consider rationality to be a normative principle or a descriptive one? Can rationality be only Cartesian or can it also be argumentative? Is rationality a conscious skill or a partly tacit one? This book, which has been written by an outstanding collection of authors, including both philosophers and social scientists, tries to make a useful contribution to the debates on these problems and shed some light on the mystery of rationality. The target audience primarily comprises researchers and experts in the field.

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 one another. In Nozick's view, misconceptions of rationality have resulted in many intractable philosophical problems. For example, the Kantian attempt to make principled behavior the sole ultimate standard of conduct extends rationality beyond its bounds. In this provocative volume, Nozick reformulates current decision theory to include the symbolic meaning of actions in areas from controlling impulses to fighting society's war against drugs. The author proposes a new rule of rational decision, "maximizing decision-value," which is a weighted sum of causal, evidential, and symbolic utility. In a particularly fascinating section of the book he traces the implications of this rule for the famous Prisoner's Dilemma and for Newcomb's Problem. Rationality of belief, according to Nozick, involves two aspects: support by reasons that make the belief credible, and generation by a process that reliably produces true beliefs. A new evolutionary account explains how some factual connections are instilled in us as seemingly self-evident, thus reversing the direction of Kant's "Copernican Revolution." Proposing a theory of rational belief that includes both the intellectual credibility of the belief and the practical consequences of believing it, Nozick also provides a fresh resolution of the "lottery paradox." Finally, Nozick explores the scope and limits of instrumental rationality, or the effective and efficient pursuit of given goals, and suggests some new conditions on the rationality of goals. 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.

Groups of people perform acts that are subject to standards of rationality. A committee may sensibly award fellowships, or may irrationally award them in violation of its own policies. A theory of collective rationality defines collective acts that are evaluable for rationality and formulates principles for their evaluation. This book argues that a group's act is evaluable for rationality if it is the products of acts its members fully control. It also argues that such an act is collectively rational if the acts of the group's members are rational. Efficiency is a goal of collective rationality, but not a requirement, except in cases where conditions are ideal for joint action and agents have rationally prepared for joint action. The people engaged in a game of strategy form a group, and the combination of their acts yields a collective act. If their collective act is rational, it constitutes a solution to their game. A theory of collective rationality yields principles concerning solutions to games. One principle requires that a solution constitute an equilibrium among the incentives of the agents in the game. In a cooperative game some agents are coalitions of individuals, and it may be impossible for all agents to pursue all incentives. Because rationality is attainable, the appropriate equilibrium standard for cooperative games requires that agents pursue only incentives that provide sufficient reasons to act. The book's theory of collective rationality supports an attainable equilibrium-standard for solutions to cooperative games and shows that its realization follows from individuals' rational acts. By extending the theory of rationality to groups, this book reveals the characteristics that make an act evaluable for rationality and the way rationality's evaluation of an act responds to the type of control its agent exercises over the act. The book's theory of collective rationality contributes to philosophical projects such as contractarian ethics and to practical projects such as the design of social institutions.

Rational Choice Theory and Organizational Theory is written in response to the neo-classical economic rational choice theories and organizational economic theories which have emerged in the past decade and gained center stage in current organizational analysis.

One of Hegel’s most controversial and confounding claims is that “the real is rational and the rational is real.” In this book, one of the world’s leading scholars of Hegel, Jean-François Kervégan, offers a thorough analysis and explanation of that claim, along the way delivering a compelling account of modern social, political, and ethical life. ?Kervégan begins with Hegel’s term “objective spirit,” the public manifestation of our deepest commitments, the binding norms that shape our existence as subjects and agents. He examines objective spirit in three realms: the notion of right, the theory of society, and the state. In conversation with Tocqueville and other theorists of democracy, whether in the Anglophone world or in Europe, Kervégan shows how Hegel—often associated with grand metaphysical ideas—actually had a specific conception of civil society and the state. In Hegel’s view, public institutions represent the fulfillment of deep subjective needs—and in that sense, demonstrate that the real is the rational, because what surrounds us is the product of our collective mindedness. This groundbreaking analysis will guide the study of Hegel and nineteenth-century political thought for years to come.

Rationality and freedom are among the most profound and contentious concepts in philosophy and the social sciences. In this, the first of two volumes, Amartya Sen brings clarity and insight to these difficult issues.

Modern philosophy has been vexed by the question "Why should I be moral?" and by doubts about the rational authority of moral virtue. In Reasons without Rationalism, Kieran Setiya shows that these doubts rest on a mistake. The "should" of practical reason cannot be understood apart from the virtues of character, including such moral virtues as justice and benevolence, and the considerations to which the virtues make one sensitive thereby count as reasons to act. Proposing a new framework for debates about practical reason, Setiya argues that the only alternative to this "virtue theory" is a form of ethical rationalism in which reasons derive from the nature of intentional action. Despite its recent popularity, however, ethical rationalism is false. It wrongly assumes that we act "under the guise of the good," or it relies on dubious views about intention and motivation. It follows from the failure of rationalism that the virtue theory is true: we cannot be fully good without the perfection of practical reason, or have that perfection without being good. Addressing such topics as the psychology of virtue and the explanation of action, Reasons without Rationalism is essential reading for philosophers interested in ethics, rationality, or the philosophy of mind.