人力资本理论中有一个重要指标,劳动者的投资回报率。它是指劳动者受教育的投入与预期收益的比值。经济学家在分析了近几十年来各国经济增长因素时发现,当一个人为教育和培训再现期支付费用时,他必然期望能通过这些活动提高其知识和技能水平,并最终增加其未来收入,这些是人们预先为之进行投资后期望 There is an important indicator of human capital theory, the return on investment of workers. It refers to the ratio of workers' investment in education to the expected return. When analyzing the factors of economic growth in various countries in recent decades, economists find that when a person pays for the reproduction of education and training, he must expect to improve his knowledge and skills through these activities and eventually increase his future income, These are people's expectations after investing in advance