《Table 3 Changing Tendency of Industrial Technologies and Technological Contents》

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《"Population Quality-based Demographic Dividend,Industrial Transformation and Sustainable Development of the Chinese Economy and Society"》

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Source:China Statistical Yearbooks and China Statistical Yearbooks on Science and Technology

The effects of population changes are not only represented by the changes of population quantity，but also by the changing population quality and structure.In terms of population quality，when a certain input of resources is ensured，the decrease of population necessarily signifies more investment in population quality.This rule also applies to a family，at the micro level，and a country，at the macro level.Since the reform and opening-up，Chinese population quality has seen steady enhancements owing to the continuous increase of investments in public health and education.Table 1 reflects the changes in the Chinese population quality by using three internationally recognized measures:average life expectancy，average schooling years and the gross enrolment ratio of higher education.