Human relations theory argues that workers respond primarily to the social context of the workplace, not just economic incentives. It recognizes two views of workers: Theory X, which sees workers as inherently lazy and only motivated by threats or rewards, and Theory Y, which sees workers as generally willing and able if properly motivated. Maslow's hierarchy of needs also informs human relations theory by suggesting workers have a hierarchy of physiological, safety, social, esteem, and self-actualization needs that must be met for maximum motivation and performance.