Managers achieve organizational goals through directing the activities of others. They perform functions like planning, organizing, controlling and directing. Managers work in organizations, which are social units composed of multiple people working together to achieve common goals. Organizational behavior is the study of how individuals and groups act in organizations and how their behaviors impact organizational effectiveness. It draws from disciplines like psychology, sociology, and anthropology. Models of OB include autocratic, custodial, supportive, collegial, and system models that differ in their focus on factors like power, resources, leadership, teamwork and trust. Common dependent variables studied in OB are productivity, absenteeism, turnover, job satisfaction and organizational citizenship behaviors. Independent variables can exist