First published in 1986. This volume presents papers from the fourth Ontario Symposium on Personality and Social Psychology, held at the University o f Western Ontario, October 15- 16, 1983. The contributors are active researchers in the areas of relative deprivation and social com parison, whose chapters document the continuing vitality of these topics. One of the purposes of this volume is to provide an accurate picture of our current knowledge about relative deprivation and social comparison processes.