12 Ergebnisse.

An agent often does not have precise probabilities or utilities to guide resolution of a decision problem. In this Element I advance a principle of rationality for making decisions in such cases.

Food products with genetically modified (GM) ingredients are common, yet many consumers are unaware of this. When polled, consumers say that they want to know whether their food contains GM ingredients, just as many want to know whether their food is natural or organic. Informing consumers is a major motivation for labeling. But labeling need not be mandatory. Consumers who want GM-free products will pay a premium to support voluntary labeling...

The book's philosophical account of risk makes precise, justifies, and systematizes a variety of decision principles drawn from various disciplines. Weirich's approach to rational choice yields a theory that explains the rationality of choices complying with decision principles and advances strong normative standards for both attitudes to risks and acts affecting risks. His theory aims to guide decisions about risks in finance, in professional...

This book explains and justifies efficient general methods of making decisions and will guide practical efforts to streamline rational choice.

Groups of people perform acts that are subject to standards of rationality. The book's theory of collective rationality explains how to evaluate collective acts. The people engaged in a game of strategy collectively produce an outcome, and the theory reveals what makes some outcomes solutions. It generates new equilibrium standards for solutions to cooperative games.

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 agents have rationally prepared for joint action.

This book explains and justifies efficient general methods of making decisions and will guide practical efforts to streamline rational choice.

In Decision Space: Multidimensional Utility Analysis, Paul Weirich increases the power and versatility of utility analysis and in the process advances decision theory. Combining traditional and novel methods of option evaluation into one systematic method of analysis, multidimensional utility analysis is a valuable tool. It provides formulations of important decision principles, such as the principle to maximize expected utility, enriches deci...

This book represents a major contribution to game theory. It offers this conception of equilibrium in games: strategic equilibrium. This conception arises from a study of expected utility decision principles, which must be revised to take account of the evidence a choice provides concerning its outcome. The argument for these principles distinguishes reasons for action from incentives, and draws on contemporary analyses of counterfactual condi...

One kind of probability and one kind of utility have decision theory as their central area of application. How should we understand this kind of probability and this kind of utility? This work compares two approaches to probability and utility. The first refines the traditional concepts of probability and utility, according to which they are rational degree of belief and rational degree of want. The second defines probability and utility in te...

This book, first published in 2001, combines traditional and novel methods of option evaluation into one systematic and versatile method.

This major contribution to game theory offers this conception of equilibrium in games: strategic equilibrium.