The document discusses several theories of motivation: - Need theories like Maslow's hierarchy of needs and McClelland's needs theory examine how individuals are motivated to fulfill needs. - Self-determination theory and cognitive evaluation theory propose that intrinsic motivation is reduced by extrinsic rewards. - Goal-setting theory suggests that specific, difficult goals with feedback lead to higher performance when contingencies like commitment are met. - Equity theory predicts how employees will respond when they perceive inequities in inputs or outcomes compared to others. The document reviews key motivation theories and their ability to explain outcomes like turnover and productivity.