Kof 4 Maximum Impact Download Pc. Mnemonic device for the two theories: a person refusing to work ('X') and a person cheering the opportunity to work ('Y') Theory X and Theory Y are theories of human motivation and management. They were created and developed by at the, initially presented at a management conference in 1957, and developed during the 1960s.

These two theories describe contrasting models of workforce applied by managers in,, and. According to the models, the two opposing sets of general assumptions of how workers are motivated form the basis for two different managerial styles.