Aiming to minimize the total production costs in a single planning period, a nonlinear integer programming model for remanufacturing production plans is established considering the influence of different qualities of ...Aiming to minimize the total production costs in a single planning period, a nonlinear integer programming model for remanufacturing production plans is established considering the influence of different qualities of returns acting on production cost. Three different remanufacturing and discarding strategies are adopted to analyze the change rules of the total production costs. The results returns is greater than indicate that when the number of remanufacturing returns of high the demand, preferentially quality and discarding those of low quality can bring better economic benefits due to manufacturing cost reduction. However, when the number of returns is smaller than the demand, there is no need to consider grading of returns, whereas new demand of remanufacturing. parts are required to satisfy the展开更多
Along with Chinese economic growth,energy plays a more and more important role in the national economy.The imbalance between insufficient energy supply and huge energy demand has become a major problem in energy utili...Along with Chinese economic growth,energy plays a more and more important role in the national economy.The imbalance between insufficient energy supply and huge energy demand has become a major problem in energy utilization,and energy substitution is attracting more and more attention as a key to the sustainable and sound development of Chinese economy.Explored the possibilities of the mutual substitution of the two types of energy with different functions with game theory in light of the supply capacity.As a con- clusion,there are four equilibrium results corresponding to different levels of supply capac- ity.Subsequently,we carry on the study further by numerical simulation,investigate in one group of results most close to Chinese energy status and find the equilibrium price as well as the demand variation pattern.展开更多
This paper analyzes the impact of income distribution gap on consumption demand from a theoretical view,and draws the conclusion that there is an inverse relationship between income distribution gap and consumption de...This paper analyzes the impact of income distribution gap on consumption demand from a theoretical view,and draws the conclusion that there is an inverse relationship between income distribution gap and consumption demand.Then,the paper finds that the existing widening income distribution gap in China has a negative impact on consumption demand,but this is not the key factor for the insufficient consumption demand because of the low level of per capital income.At last,it suggests that governments should improve the income level of entire residents and adjust income distribution structure simultaneously.展开更多
Taking advantage of company survey data,this paper examines the responsiveness of enterprises in manufacturing sectors to the recent labor market changes characterized by surging wages and shrinking unskilled workers....Taking advantage of company survey data,this paper examines the responsiveness of enterprises in manufacturing sectors to the recent labor market changes characterized by surging wages and shrinking unskilled workers.The result shows that the labor demand elasticity with regard to output is substantial.In other words,growing manufacturing will keep creating jobs and intensify labor scarcity in China.The wage elasticity is-0.40 for unskilled workers and-0.53 for skilled workers,which indicates that Chinese companies are quite responsive to the recent labor market changes.There exists a kind of substitution effect between skilled and unskilled workers,however,the magnitude of elasticity remains small.To promote economic upgrading in China's labor market,institutional and industrial policies should encourage companies to be responsive to the warning signals from the market of production factor.展开更多
基金The National Natural Science Foundation of China(No.70671022)
文摘Aiming to minimize the total production costs in a single planning period, a nonlinear integer programming model for remanufacturing production plans is established considering the influence of different qualities of returns acting on production cost. Three different remanufacturing and discarding strategies are adopted to analyze the change rules of the total production costs. The results returns is greater than indicate that when the number of remanufacturing returns of high the demand, preferentially quality and discarding those of low quality can bring better economic benefits due to manufacturing cost reduction. However, when the number of returns is smaller than the demand, there is no need to consider grading of returns, whereas new demand of remanufacturing. parts are required to satisfy the
文摘Along with Chinese economic growth,energy plays a more and more important role in the national economy.The imbalance between insufficient energy supply and huge energy demand has become a major problem in energy utilization,and energy substitution is attracting more and more attention as a key to the sustainable and sound development of Chinese economy.Explored the possibilities of the mutual substitution of the two types of energy with different functions with game theory in light of the supply capacity.As a con- clusion,there are four equilibrium results corresponding to different levels of supply capac- ity.Subsequently,we carry on the study further by numerical simulation,investigate in one group of results most close to Chinese energy status and find the equilibrium price as well as the demand variation pattern.
文摘This paper analyzes the impact of income distribution gap on consumption demand from a theoretical view,and draws the conclusion that there is an inverse relationship between income distribution gap and consumption demand.Then,the paper finds that the existing widening income distribution gap in China has a negative impact on consumption demand,but this is not the key factor for the insufficient consumption demand because of the low level of per capital income.At last,it suggests that governments should improve the income level of entire residents and adjust income distribution structure simultaneously.
基金supported by National Science Foundation of China grant 71173234the Asian Development Bankthe Chinese Academy of Social Sciences
文摘Taking advantage of company survey data,this paper examines the responsiveness of enterprises in manufacturing sectors to the recent labor market changes characterized by surging wages and shrinking unskilled workers.The result shows that the labor demand elasticity with regard to output is substantial.In other words,growing manufacturing will keep creating jobs and intensify labor scarcity in China.The wage elasticity is-0.40 for unskilled workers and-0.53 for skilled workers,which indicates that Chinese companies are quite responsive to the recent labor market changes.There exists a kind of substitution effect between skilled and unskilled workers,however,the magnitude of elasticity remains small.To promote economic upgrading in China's labor market,institutional and industrial policies should encourage companies to be responsive to the warning signals from the market of production factor.
