1. INTRODUCTION In the Spring of 1975 we held an international workshop on the Foundations and Application of Decision Theory at the University of Western Ontario. To help structure the workshop into ordered and manageable sessions we distri buted the following statement of our goals to all invited participants. They in turn responded with useful revisions and suggested their own areas of interest. Since this procedure provided the eventual format of the sessions, we include it here as the most appropriate introduction to these collected papers result ing from the workshop. The reader can readily gauge the approximation to our mutual goals. 2. STATEMENT or OBJECTIVES AND RATIONALE (Attached to this statement is a bibliography; names of persons cited in the statement and writing in this century will be found referenced in the biblio graphy - certain 'classics' aside. ) 2. 1. Preamble We understand in the following the Theory of Decisions in a broader sense than is presently customary, construing it to embrace a general theory of deciSion-making, induding social, political and economic theory and applica tions. Thus, we subsume the Theory of Games under the head of Decision Theory, regarding it as a particularly clearly formulated version of part of the general theory of decision-making.

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The 'Tracing Procedure' and a Theory of Rational Interaction.- Variety Among Hierarchies of Preference.- Conflict and Structure in Multi-Level Multiple Objective Decision-Making systems.- Inadequacies in the Decision Analysis Model of Rationality.- Counterfactuals and Two Kinds of Expected Utility.- Coordination Theory.- A Piagetian Approach to Decision and Game Theory.- Axiomatizing the Logic of Decision.- On Indeterminate Probabilities.- Irrelevance.- On a Decision Theoretic Method for Social Decisions.- Consensus and Comparison: A Theory of Social Rationality.- Conjoint Measurement: A Brief Survey.- The Minimax Theory and Expected-Utility Reasoning.- Newcomb's Many Problems.- Newcomb's Problem, Dominance and Expected Utility.- The Copernican Revelation.- Prolegomena to a Theory of Rational Motives.- Index of Names.