Motivation theories are important for healthcare institutions to function effectively and provide adequate patient care. Several theories aim to explain what motivates employee performance and behavior. Maslow's hierarchy of needs proposes that lower level needs must be met before higher ones. Hertzberg's two-factor theory divides factors into hygiene and motivators. McClelland's achievement theory examines needs for achievement, affiliation, and power. Equity theory focuses on perceptions of fair outcomes. Expectancy theory links effort to expected rewards.