Base on these correlative models, we educe the income elasticity of demand and price elasticity of demand of tea consumption by per capita tea consumption amount and per capita consumption value. Thus characteristics of tea consumption in China were deeply revealed.
After reviewing the different modes of gas utilization abroad,the paper points out gas at home will mainly be used to generate electricity in the future and the consumption amount of gas for synthesizing ammonia will also sharply increase,but the ratio of utilizing gas as raw material in the consumption structure will remarkably go down.
Up to 2010,the consumption amount of gas at home will be expected to reach about 100×10 9m 3.In the consumption structure of gas,generation electricity occupies 40%～46%,25%～31% for other industry,15% for chemical industrial material,14% for civil gas.
Temporary situation of Chineese cement industry and the cement market relations with national economy,GDP and fixed asset investment etc, were illustrated in this paper. A reasonable prediction of China cement consumption amount was given, and the author believes that Chinese cement industry will realize its aim of "from large to strong".
Corresponding countermeasures of the oil supply-security of China are suggested by analyzing the forecasting results and the problems existing in petroleum economic system of China, especially aiming at the balance between oil production and consumption quantity.
First, according to sample data of time series that represented overall situation of tea expense in our contry, the influence of nationwide population quantity on the total amout of tea consumption was analyzed, also the influence of the average per person income on the per person consumption quantity and per person expense value of urban and rural inhabitants respectively has been analyzed. The related measurement models has been established, and fitting effect of the models has been examined too.
The global total consumption of mythyl ethyl ketone in 2004 was about 900 kt/a,with a production capacity of 1 300 kt/a,and it can be anticipated that by 2007 the market of methyl ethyl ketone will be overstocked.
It is forecasted that the total consumption of butyl rubber in China will reach about 140kt/a in 2005, 210kt/a in 2010. According to the status and existed problems in the production of butyl rubber in China, some development suggestions were put forward.
The sulfur output worldwide in 2003 was 44. 78 Mt, and the total consumption was 42.42 Mt. It was predicted that sulfur output would grow steadily at an annual rate of 2. 5% by 2010. In 2003 , the sulfur output of China was 700kt, import quantum was 4,900kt, apparent consumption was 5 ,610 kt.
A direct method in optimal portfolio and consumption choice
In this paper, we use a direct method to solve the optimal portfolio and consumption choice problem in the security market for a specific case, in which the utility function is of a given homogenous form, i.e.
An optimal investment/consumption problem with higher borrowing rate
In this paper, optimal investment and consumption decisions for an optimal choice problem in infinite horizon are considered.
this paper gets the optimal consumption and optimal investment in the form of with .
In this paper, We use method of correlation degree dustinguish in , taken Yunnan as exaple, We analysis relations of the main energy(coal, oil, nutural gas, electric power)consume quanti- ty and energy consume tatol quantity between.Besides, Respectively built grey GM(1,1)models of en- ergy industrial production quantity and consume quantity. The results of quantified analysis provided reliable scientific for the quantitative analysis and decision.
Recently,growth in Chinese petroleum production levels has nearly reached a standstill while petroleum consumption increased at a rate of 5 MT a year. The gap created by this recent rise in consumption has been covered for the most part by reducing petroleum exports;however.this has caused China to become an increasingly net petroleum importing country. The reasons for China's shortage of oil supply are not due to any poverty in petroleum resources, but rather the long years of stagnancy in exploration work,and...
Recently,growth in Chinese petroleum production levels has nearly reached a standstill while petroleum consumption increased at a rate of 5 MT a year. The gap created by this recent rise in consumption has been covered for the most part by reducing petroleum exports;however.this has caused China to become an increasingly net petroleum importing country. The reasons for China's shortage of oil supply are not due to any poverty in petroleum resources, but rather the long years of stagnancy in exploration work,and the serious wastage problem in petroleum consumption.