Organizational behavior is the study of how individuals and groups act within organizations and how organizations manage their environments. It examines individual, group, and organizational level factors that influence behavior. The document outlines the key factors affecting organizational behavior, including people, environment, structure, and technology. It also discusses the three levels of analysis - individual, group, and organizational. Organizational behavior draws from multiple disciplines like psychology, sociology, and political science. The challenges facing workplaces include improving productivity, managing diversity, and responding to labor shortages and customer needs.