1. Education cost: refers to the education cost to cultivate certain skilled labor reserve forces and specialized talents and improve the quality of the existing labor force, including the personal cost and social cost of education.

2. Educational benefits: It refers to various beneficial effects that education brings to individuals and society in cultivating and improving workers' knowledge and skills, also known as the economic benefits of education. Including personal income (direct: income increase; Indirect: greater vocational adaptability and more employment opportunities, savings in consumption due to stronger ability, healthier body and intergenerational influence) and social benefits (direct social benefits: improving labor productivity and indirect social benefits: politics and morality).