Organizational behavior (OB) is the study of how individuals and groups act within organizations and how organizations manage their environments. OB focuses on improving productivity by understanding employee behavior and predicting human behavior in organizations. Behavior is generally predictable but depends on circumstances. To study OB effectively requires a systematic, evidence-based approach rather than just common sense. OB draws from various disciplines like psychology, sociology, and political science to analyze behavior at the individual, group, and organizational levels.