The document discusses various theories of motivation, including: early theories like Maslow's hierarchy of needs and Herzberg's two-factor theory; contemporary theories like self-determination theory, goal-setting theory, reinforcement theory, equity theory, and expectancy theory; and how motivation theories apply across cultures. The key elements of motivation are intensity, direction, and persistence of effort. Contemporary motivation theories tend to be better predictors of behavior than early theories, with goal-setting theory and expectancy theory showing the strongest predictive power according to the document.