In order to make these papers available promptly, they are pre sented here as they were written. This means that, in many in stances, one paper is not responsive to relevant points which may have been raised in another, since they were written simultaneously. Similarly, no attempt is made to represent in detail the interactions that went on in discussing the various points of View. The selection of emphases in the introductory statement, the pointing to common threads and unresolved issues, is the Editor's responsibility. The au thor's burden is only the way in which he has presented his point of view in the individual chapters. The Editor is particularly indebted to the Foundation for Research on Human Behavior, both for the support which it has given to his research which is reported in this volume and to the organization of the symposium and the production of this collection of papers. Fi nally, Mrs. Paul Seabury, of the Institute of Industrial Relations at the University of California, deserves special commendation for her pains taking e?orts with the detailed editorial problems involved in bring ing together a set of papers written by so many different authors.