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."

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 OF 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, including 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."

In spite of the seeming heterogeneity of topics in its title - Revolutions, Systems, and Theories - this volume purports to be something more than a random collection of Essays in Political Philosophy. The Colloquium of the Philosophy Department of the University of Western Ontario (29-31 Octo- ber, 1971) at which initial versions of the first eight papers were delivered was entitled 'Political Theory'; and while the organizers anticipated and indeed welcomed topicality in the issues accorded priority arid in the empirical evidence invoked, they were also hoping for a reasonably comprehensive explorat ion of some of the central issues of political philosophy. For this reason it was quickly decided that in such a field a philosophical focus on clarification of ordering concepts required the suppIement - and test - of researches into more particular subject maUers by social scientists. Thus, to speak in general terms (where the specializatlons and their taxonomies multi- ply fissiparously!) , contributors include political scientists, economists and sociologists (Barnard, Baston, Tullock, Rapoport) as well as philosophers (Scriven, Morgenbesser, Braybrooke, TayIor), and juxtaposed as proponents and commentators *to generate exchanges across disciplinary frontiers. While the five additional invited papers are alI by professional philosophers, they extend the original Colloquium either by continuing controversy on its funda- mental issues (e. g. , Rubinoff, Nielsen, Roy) or by their continued explorations in what are acknowledged to be boundary areas (e. g. , Schick, Wartofsky). The greatest topical emphasis is that on revolution.

In spite of the seeming heterogeneity of topics in its title - Revolutions, Systems, and Theories - this volume purports to be something more than a random collection of Essays in Political Philosophy. The Colloquium of the Philosophy Department of the University of Western Ontario (29-31 Octo- ber, 1971) at which initial versions of the first eight papers were delivered was entitled 'Political Theory'; and while the organizers anticipated and indeed welcomed topicality in the issues accorded priority arid in the empirical evidence invoked, they were also hoping for a reasonably comprehensive explorat ion of some of the central issues of political philosophy. For this reason it was quickly decided that in such a field a philosophical focus on clarification of ordering concepts required the suppIement - and test - of researches into more particular subject maUers by social scientists. Thus, to speak in general terms (where the specializatlons and their taxonomies multi- ply fissiparously!) , contributors include political scientists, economists and sociologists (Barnard, Baston, Tullock, Rapoport) as well as philosophers (Scriven, Morgenbesser, Braybrooke, TayIor), and juxtaposed as proponents and commentators *to generate exchanges across disciplinary frontiers. While the five additional invited papers are alI by professional philosophers, they extend the original Colloquium either by continuing controversy on its funda- mental issues (e. g. , Rubinoff, Nielsen, Roy) or by their continued explorations in what are acknowledged to be boundary areas (e. g. , Schick, Wartofsky). The greatest topical emphasis is that on revolution.

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."

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 OF 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, including 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."

This volume grew out of the papers and comments presented at the Fifth University of Western Ontario Philosophy Colloquium, October 31- November 2, 1969. The colloquium papers were delivered by P. Suppes, R. B. Braithwaite, C. W. Churchman, and J. S. Minas. Comments are provided from others attending the colloquium, with one reply by P. Suppes. Also included are papers recently published elsewhere by A. Michalos, P. Fishburn and H. -N. Castaneda. The editors express thanks to these authors and to the editors of the following respective journals for per mission to publish: Theory and Decision, Synthese, and Critica. Finally, there is an extensive bibliography of decision theory, vis-a. -vis science and values. The editors wish to thank the officers of the University of Western Ontario for making the colloquium possible. THE EDITORS CONTENTS PREFACE V PATRICK SUPPES I The Concept of Obligation in the Context of Decision Theory 1 HENR Y KYBURG I Comments 15 PATRICK SUPPES I Reply to Professor Kyburg 19 R. B. BRAITHWAITE I Behind Decision and Games Theory: Acting with a Co-Agent versus Acting Along with Nature 22 ISAAC LEVI I Comments 56 RONALD GIERE I Comments 62 I. J. GOOD I Comments 67 C. WEST CHURCHMAN I Measurement: A Systems Approach 70 ISAAC LEVI I Comments 87 RONALD GIERE I Comments 95 PETER C. FISHBURN I Utility Theory with Inexact Preferences and Degrees of Preference 98 I. J."