Using a theoretical model, this article concludes that age structures influence people＇s propensity to save and thereby influence their capital intensity. In the context that capital and labor are in a substitutional...Using a theoretical model, this article concludes that age structures influence people＇s propensity to save and thereby influence their capital intensity. In the context that capital and labor are in a substitutional relation, increased capital intensity may lead to a drop of labor income share. We perform empirical research with provincial-level data from 1990 to 2007 and have proved that the rising of the old dependency ratio and the decrease of the children dependency rate both contribute to the fall of labor income share. This assumption still holds true after the authors control the influences of other potential factors that may influence labor income share展开更多
For a long time, China has large population, so the labor-intensive products become the comparative advantage.This paper analyzes the influences of population age structure＇s changes on the export commodity structure...For a long time, China has large population, so the labor-intensive products become the comparative advantage.This paper analyzes the influences of population age structure＇s changes on the export commodity structure of our country and draws conclusions.展开更多
A model which describes the dynamics of an SIS epidemic in an age-structured and time dependent population is considered. The global behavior of the model with a special form for the infective force is obtained. The e...A model which describes the dynamics of an SIS epidemic in an age-structured and time dependent population is considered. The global behavior of the model with a special form for the infective force is obtained. The existence and uniqueness of the solution and nontrivial endemic equilibrium state are proved.展开更多
The age structure of the Chinese population is entering a process of generalized aging in which the major age groupings will see a fall in the ratio of younger age groups and a rise in the ratio of older age groups,wi...The age structure of the Chinese population is entering a process of generalized aging in which the major age groupings will see a fall in the ratio of younger age groups and a rise in the ratio of older age groups,with varying levels of socioeconomic significance for the entire population system.The implementation of the unconditional two-child policy(quanmian erhai zhengce)has not changed this general trend.The early stage of population aging(2011-2060)is one of the high-speed development of generalized aging with multiple growth peaks and fluctuations in the size,growth rate and internal structure of the major age groupings.From the perspective of generalized population aging,China’s future contains four major systemic demographic dividends and faces four major systemic demographic risks.The early stage of aging is the most important period for the transformation of the population age structure.If society can adjust to the aging trend and the phased nature of the development of this trend,it will be able to seize the initiative in long-term development.展开更多
文摘Using a theoretical model, this article concludes that age structures influence people＇s propensity to save and thereby influence their capital intensity. In the context that capital and labor are in a substitutional relation, increased capital intensity may lead to a drop of labor income share. We perform empirical research with provincial-level data from 1990 to 2007 and have proved that the rising of the old dependency ratio and the decrease of the children dependency rate both contribute to the fall of labor income share. This assumption still holds true after the authors control the influences of other potential factors that may influence labor income share
文摘For a long time, China has large population, so the labor-intensive products become the comparative advantage.This paper analyzes the influences of population age structure＇s changes on the export commodity structure of our country and draws conclusions.
基金This work is supported by the National Natural Sciences Foundation of China.
文摘A model which describes the dynamics of an SIS epidemic in an age-structured and time dependent population is considered. The global behavior of the model with a special form for the infective force is obtained. The existence and uniqueness of the solution and nontrivial endemic equilibrium state are proved.
文摘The age structure of the Chinese population is entering a process of generalized aging in which the major age groupings will see a fall in the ratio of younger age groups and a rise in the ratio of older age groups,with varying levels of socioeconomic significance for the entire population system.The implementation of the unconditional two-child policy(quanmian erhai zhengce)has not changed this general trend.The early stage of population aging(2011-2060)is one of the high-speed development of generalized aging with multiple growth peaks and fluctuations in the size,growth rate and internal structure of the major age groupings.From the perspective of generalized population aging,China’s future contains four major systemic demographic dividends and faces four major systemic demographic risks.The early stage of aging is the most important period for the transformation of the population age structure.If society can adjust to the aging trend and the phased nature of the development of this trend,it will be able to seize the initiative in long-term development.
