中文摘要：

人力资本投资导致劳动力市场结构正向变动，引起收入差距缩小，然而收入差距的缩小却会降低人力资本投资动机。调整技术进步的类型可以调和这一矛盾，实证表明，我国农村非技能增强型技术进步快于技能增强型技术进步，有利于缩小收入差距，必然不利于人力资本投资。在收入差距不断缩小的情况下，保证收入长期稳定增长，需要不断对人力资本进行投资，实现劳动力市场结构一元化。

英文摘要：

Human capital investment will cause labour market structure＇s positive change and dwindle the income gap. But the narrowing of income gap will reduce the motive of human capital investment. The contradiction will be reconciled by adjusting the type of technological progress. Empirical evidence shows that China＇s rural non-skills-enhanced technological advances faster than the skills-enhanced technological progress, which is conducive to narrowing the income gap, but it is unconducive to investment in human capital. With the circumstances of income gap continued to narrow, it is necessary to keep investing in human capital to guarantee the long-term stable income growth, and then achieve centralized structure of the labor market.