Paul Weirich Libri

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.

Multidimensional utility analysis enhances decision theory by integrating traditional and innovative evaluation methods into a cohesive framework. It formulates key decision principles like maximizing expected utility and addresses complex decision-making scenarios, particularly when an expert represents a group. This comprehensive approach accommodates various factors influencing an option's utility, making it a crucial resource for advanced students, professionals in decision theory, and social scientists.

Classical decision theory evaluates entire worlds, specified so as to include everything a decision-maker cares about. Paul Weirich argues that we need only compare small parts of the options we face in order to make a rational decision, and explains how we can simplify and streamline our choices.