From a macro perspective, the inconsistency between population distribution and economic development reflects the lag of population mobility and, at the same time, widens regions’ economic disparity. China, as a socialist country, is very concerned with the regional disparities. Aiming at analyzing ways to reduce regional disparities and promote balanced and sustainable regional developments, this paper applies spatial analytical methods in econometrics, using the Yangtze River Economic Belt in China as an example, to analyze the spatial inconsistency between the distribution of population and economic development. The study also examines the influencing factors for such inconsistency and proposes countermeasures from the perspective of floating population and regional economics. The research results show that the improvement of human capital and the tilt of regional policies are conducive to population agglomeration. Furthermore, increasing the input of physical capital can promote economic agglomeration. From the spatial econometric analysis in this paper, the direct and indirect effects have opposite directions, so it is necessary to consider the indirect effects when implementing policies or programs.

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The impact of environmental pollution on human health has become a consensus. Based on the provincial panel data of China from 2002 to 2017, this paper analyzes the impact of industrial wastes on human health. With respect to human health, average annual frequency of physician visits per capita (AAFPV) is used as a measure for the short-term human health; all-cause mortality is used to illustrate the long-term human health. The results show that in the short term, with the level of industrial smoke dust increasing every 1 percentage, AAFPV would increase by 0.24 percentage. This effect is significant in East China and West China. Central China is affected by industrial waste water, with a rate of increasing AAFPV by 0.12 percent for every 1 percent increase of chemical oxygen demand per unit area. In the long term, water pollution is the main influencing factor of all-cause mortality.