摘要：
This paper, through constructing new liquid indicator as representative variables which measures microscopic liquidity, and taking the volume as the representative variables of the macro liquid indicators, using Granger causality test of VAR model, variance decomposition method, researches the relationship between liquidity and returns in fuel oil futures market. The results show that fuel oil futures market only exists that the rate of return guides on liquidity, and liquidity is driven by yield, but liquidity has no effect on yield, that is to say, there is not liquidity premium phenomenon in fuel oil futures market.
会议论文集名称：
Proceedings of 2015 International Conference on Education, Management and Systems Engineering(EMSE 2015)
关键词：
Urbanization;Age structure;Clustering method
摘要：
The article takes the relation between the age structure of the population and urbanization as the object of study. The article described the current situation and the connection between the age structure and urbanization in many ways and used the family planning as a point-cut to analyze the changes in the age structure of the population in different periods and the corresponding process of urbanization, and focused on describing the contradiction between urbanization and the problem of the age structure of the population during urbanization. In addition, we analyzed the unbalanced problem of regional differences in the age structure of the population and the development of China's urbanization by clustering method. Finally, combined with China's national conditions, we come up with urbanization strategies during the demographic structure changing trend.
