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1.
文章利用扩展线性支出系统,对西藏城镇居民的消费结构及各类消费品需求变化趋势进行分析与探讨,并给出了合理的政策建议。文章旨在揭示消费品市场的规律,帮助预测各类消费品在西藏的未来需求,这对于引导居民消费,优化消费结构乃至建立合理的产业结构和产品结构均具有现实的指导意义。  相似文献   

2.
运用扩展线性支出系统,对中国城镇居民各类消费品的消费结构进行了实证分析,以此说明各类消费需求对收入的弹性及消费结构的变动趋势,从而反映中国城镇居民的消费观念的转变.  相似文献   

3.
运用计量经济学的方法,对重庆市城市居民消费结构进行研究和分析,揭示消费品市场规律,预测各类消费品需求,为调整产业结构,合理安排生产与流通;为经济持续健康发展,提供政策依据。  相似文献   

4.
近年来,随着收入水平的不断提高,云南省农村居民的消费结构发生了显著变化。利用扩展线性支出系统模型可以对云南省农村居民消费结构进行消费边际倾向和总量、增量结构对比分析、基本需求分析以及弹性分析,从而具体窥探和显现了云南省农村居民的消费心理和倾向。基于扩展线性支出模型的云南省农村居民消费结构分析为准确预测云南省消费品市场变化,实现云南经济增长方式转变提供了重要的决策依据。  相似文献   

5.
居民消费需求作为最终需求,是经济增长的根本动力。适当引导消费需求可以优化消费结构,而合理的消费结构能够更好的带动产业结构及就业结构的升级。本文将时间序列数据和截面数据相结合,通过对历年指标的比较分析,采用扩展线性支出系统模型(ELES模型)分析城镇居民家庭消费结构的变化。  相似文献   

6.
以重庆市2000-2011年的年度数据为基础,利用因子分析法对重庆市城乡居民各类消费支出进行分析,应用SPSS统计软件进行数据统计,实证结果表明重庆市城乡居民的消费结构有明显的差异;根据重庆城乡居民当前消费结构的具体特点,提出建设性意见,对引导居民合理消费,优化消费结构,建立合理的产业结构等方面均具有现实意义.  相似文献   

7.
以《中国统计年鉴2008)提供的2007年各地农村居民家庭消费支出的数据为背景材料,对我国31个省、市农村居民消费结构特征运用多元统计分析方法,在因子分析的基础上进行聚类分析。按照消费结构将其分为5类,在各地区分类的基础上,将各类地区的指标进行系统的比较,总结出各类地区消费结构的差异及其成因,最后就如何促进我国农村居民合理消费,以此拉动我国经济发展,提出相应的建议。  相似文献   

8.
改革开放以来,随着农民收入的增长,生活水平的不断提高.农民消费结构发生了很大变化。本文分析了凉山农民消费结构及变化特点,论述了农民消费结构存在的问题,并结合当前实际,提出了优化农民合理消费需求的对策。  相似文献   

9.
农村居民消费结构对整个社会的消费水平和消费质量的提高有着重大影响,对拉动经济增长和促进国民经济良性循环至关重要。正确分析农村居民消费结构的演变,找出制约农民消费需求的症结所在,对引导农民合理消费,调整农村经济结构,深化经济体制改革有着重要意义。本为通过考察当前中国农村的消费结构的现状,分析影响农村消费结构的因素,试图找出优化农村消费结构的对策。  相似文献   

10.
基于ELES模型的吉林省城镇居民消费结构实证分析   总被引:1,自引:0,他引:1  
通过总体消费结构和恩格尔系数来考察吉林省消费结构现状,采用相关数据构建扩大的线性支出系统(ELES)模型,对边际消费倾向、基本消费需求以及需求收入弹性3个方面进行实证分析。结果表明,吉林省城镇居民的生活已经向享受型转化,但是食品消费支出占比偏大。因此必须进一步增加居民收入,发挥政府职能来合理优化消费结构,这对于实现由投资拉动经济增长向消费拉动经济增长的转变具有重要意义。  相似文献   

11.
Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.  相似文献   

12.
何延凌 《科技信息》2008,(4):258-258
Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women's language from these perspectives: pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women's language, more attention should be paid to language use in social context. What's more, the linguistic phenomena in a speaking community can be understood more thoroughly.  相似文献   

13.
王慧 《科技信息》2008,(10):240-240
Wuthering Heights, Emily Bronte's only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.  相似文献   

14.
The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.  相似文献   

15.
理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。  相似文献   

16.
As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.  相似文献   

17.
Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.  相似文献   

18.
正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-  相似文献   

19.
We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-  相似文献   

20.
正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that  相似文献   

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