Jeff GreenbergJeff Greenberg is Professor of Psychology at the University of Arizona and associate editor of the Journal of Personality and Social Psychology. He received his PhD from the University of Kansas in 1982. Dr. Greenberg has published many articles and chapters, focused primarily on understanding self-esteem, prejudice, and depression. In collaboration with Tom Pyszczynski and Sheldon Solomon, he developed terror management theory, a broad theoretical framework that explores the role of existential fears in diverse aspects of human behavior. He is coauthor of Hanging on and Letting Go: Understanding the Onset, Progression, and Remission of Depression and In the Wake of 9/11: The Psychology of Terror, and is coeditor of Motivational Analyses of Social Behavior.