Organizational behavior is the field of study that investigates how individuals, groups, and structure impact behavior within organizations. The goal is to apply this knowledge to improve organizational effectiveness. Managers work to achieve goals through others by making decisions, allocating resources, and directing activities. They operate within organizations, which are social units composed of people working together to achieve common goals. Key managerial functions include planning, organizing, leading, and controlling. Organizational behavior draws from contributing disciplines like psychology, sociology, social psychology, anthropology, and political science. It addresses challenges in responding to economic pressures, globalization, diversity, innovation, and work-life balance.