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1.
江苏省城市化的空间格局及其演化   总被引:1,自引:1,他引:1  
马晓冬  沈正平 《经济地理》2007,27(5):783-786,795
城市化的空间格局往往表现为一定的结构性和分异性。文章以江苏省为例,运用帕雷托(Pareto)模型和空间自相关校验,从城市体系的规模结构和城市化水平的空间分异两个方面,对近年来该省城市化的空间格局及其演化进行了定量分析。结果显示,江苏城市分布存在明显的空间梯度性,区域城市化水平的两级分化和空间收敛趋势明显。  相似文献   

2.
基于数字经济理论内涵,构建中国省际数字经济发展评价指标体系,运用熵权加权法进行测度,并借助探索性空间分析法、时空跃迁法、空间杜宾模型对中国2011—2020年数字经济发展水平的空间格局及收敛性进行实证研究。研究发现:中国数字经济发展水平呈逐年上升态势,且区域差异显著,呈东部地区高、中西部地区低的空间分布特征;数字经济整体上存在空间外溢效应和空间格局锁定特征,较难实现跃迁;全国及区域层面的数字经济发展水平均存在α收敛、绝对β收敛和条件β收敛,空间因素可加速其收敛,收敛速度呈东部、西部、中部地区依次减弱。  相似文献   

3.
新型城镇化发展的时空差异及协调度分析   总被引:1,自引:0,他引:1  
杨钧 《财经科学》2015,(12):48-57
新型城镇发展的“新”主要在于“人”的城镇化,新型城镇化的核心价值是“以人为本”.本文通过耦合协调模型分析了我国不同区域新型城镇化发展水平的对空变化和协调程度.研究表明,我国各地区2003—2013年新型城镇化发展水平均呈现逐年上升的趋势,但区域差异较大.新型城镇化发展水平在空间分布上存在显著的正向空间自相关,整体上呈现东高西低的分布格局;各子系统的耦合协调度呈现不断上升的趋势,协调度较高的地区主要集中在东部沿海.因此,各地区应该通过体制机制改革和政策调整,促进城乡各方面的协调发展,进而提高新型城镇化发展水平.  相似文献   

4.
文章以共同富裕为视域构建城乡融合评价指标体系,测度2008—2020年中国城乡融合水平指数,运用核密度估计刻画了全国及四大区域城乡融合水平的时空差异特征,并利用空间面板收敛模型开展实证检验。研究发现,中国省际城乡融合水平总体明显提升且逐渐趋于聚集状态,但是也存在局部分化态势;中国省际城乡融合水平呈现空间正相关性,全国及东、中、西部地区表现出明显的绝对β和条件β收敛趋势,而东北地区呈现发散特征。鉴于此,建议优化城乡生产力布局、推动就地城镇化、健全农村公共服务、树立城乡共富典范,以此加速城乡融合、推动实现城乡共同富裕。  相似文献   

5.
中国人均GDP的空间相关与地区收敛:1978-2003   总被引:16,自引:0,他引:16       下载免费PDF全文
本文运用探索性空间数据分析方法研究了中国30个省份人均GDP之间的空间相关性,结果表明,自改革开放以来,中国各地区人均收入的空间相关逐年加强。通过计算局部空间自相关指标,本文进一步验证了中国经济中空间异质性的存在,即地区人均收入与地理位置密切相关。在此基础上,本文运用三种不同的空间经济计量模型研究了中国各省份人均GDP增长的收敛性。结果表明,空间自回归模型和广义空间模型不能正确拟合中国省级地区增长数据,而空间误差自回归模型能够满意地解释中国省级地区经济增长,这表明地理位置的影响尽管对各地区的经济增长造成了深刻的影响,但并没有改变地区经济增长的收敛趋势。空间误差自回归模型还显示劳动力和资本流动以及知识溢出在省级地区水平上是显著存在的,并且有利于地区经济增长的收敛。  相似文献   

6.
中国人均GDP的空间相关与地区收敛:1978-2003   总被引:4,自引:0,他引:4  
张晓旭  冯宗宪 《经济学》2008,(1):399-414
本文运用探索性空间数据分析方法研究了中国30个省份人均GDP之间的空间相关性,结果表明,自改革开放以来,中国各地区人均收入的空间相关逐年加强。通过计算局部空间自相关指标,本文进一步验证了中国经济中空间异质性的存在,即地区人均收入与地理位置密切相关。在此基础上,本文运用三种不同的空间经济计量模型研究了中国各省份人均GDP增长的收敛性。结果表明,空间自回归模型和广义空间模型不能正确拟合中国省级地区增长数据,而空间误差自回归模型能够满意地解释中国省级地区经济增长,这表明地理位置的影响尽管对各地区的经济增长造成了深刻的影响,但并没有改变地区经济增长的收敛趋势。空间误差自回归模型还显示劳动力和资本流动以及知识溢出在省级地区水平上是显著存在的,并且有利于地区经济增长的收敛。  相似文献   

7.
在逆全球化趋势、全球产业链及价值链持续调整的背景下,探究中国双循环协调发展格局及其驱动机制具有重要的意义。运用核密度估计、空间趋势分析、马尔可夫链以及空间自相关分析等方法剖析了中国省域双循环协调发展的空间演化特征,并采用空间杜宾模型探究驱动机制。研究发现:(1)双循环协调发展整体呈现向好趋势,但具有明显的空间异质性及动态调整特征,沿海省份作为承载内循环与外循环衔接的重要节点,协调水平相对较高。(2)双循环协调发展呈现东高西低的分布格局。而且双循环发展存在明显“俱乐部收敛”现象,受邻近区域影响,层级跨越较难进行。(3)企业家精神、区域创新能力、产业升级导向、区域经济发展等因素能正向驱动双循环协调发展,外部投资环境、市场化水平、网络发展环境的优化也具有显著作用。  相似文献   

8.
将环境污染、创新失败因素列为非期望产出指标,运用2006—2016年中国内地30个省份面板数据,构建SBM—DEA模型对中国绿色创新效率及其区域差异进行测算,进而采用σ收敛模型、绝对β收敛模型、条件β收敛模型考察中国区域绿色创新效率的收敛性。结果表明:中国区域绿色创新效率整体上呈现上升趋势,但存在较大区域差异,东部地区绿色创新效率远高于中、西部地区;全国及东、中、西部地区绿色创新效率均不存在明显的σ收敛,但存在显著的绝对β收敛和条件β收敛,且影响收敛的显著性因素各不相同。  相似文献   

9.
文章运用空间计量方法分析了我国省际保险密度的空间相关性,发现我国省际保险密度在呈现出区域集聚特征的同时,全国趋同的趋势也在迅速增强.在运用三种空间经济计量模型研究了我国省际保险密度增长的收敛性后,发现空间误差模型是研究我国省际保险密度空间收敛性的合适模型,全国保险密度的收敛速度大约为1.5%.虽然加入WTO等对我国保险密度的区域集聚性与整体收敛性都带来了冲击,但整体收敛的趋势依然稳定,表明区域保险业发展水平会随着经济发展水平的趋同而趋同.  相似文献   

10.
王凯  邹楠  甘畅 《经济地理》2022,(6):215-224
旅游业在推动国民经济发展的同时,不可避免地引发了环境污染和生态破坏等问题,提升旅游绿色生产率已成为推动旅游生态文明建设和旅游经济高质量发展的重要举措。文章运用基于非期望产出的Super-EBM模型、全域Malmquist-Luenberger指数和收敛性模型,从静态和动态视角出发对2005—2019年中国旅游业技术效率和旅游绿色生产率进行测算,分析其收敛性及其影响因素。研究发现:(1)2005—2019年中国旅游技术效率均值为0.433,距离生产前沿面仍然存在56.7%的改进潜力,旅游绿色生产率GML指数总体上存在小幅度增长且动力主要源于技术变动。(2)旅游绿色生产率增长总体上存在σ收敛,且具有显著的绝对β收敛和条件β收敛特征。(3)市场经济水平、区域产业结构、环境规制、交通基础设施投入、政府干预、创新水平等因素对中国旅游绿色生产率增长及收敛的影响存在显著空间异质性。  相似文献   

11.
Abstract

The purpose of this paper is to introduce explicitly pleasure and belief in what aims at being a Humean theory of decision, like the one developed in Diaye and Lapidus (2005a). Although we support the idea that Hume was in some way a hedonist – evidently different from Bentham's or Jevons' way – we lay emphasis less on continuity than on the specific kind of hedonism encountered in Hume's writings (chiefly the Treatise, the second Enquiry, the Dissertation, or some of his Essays). Such hedonism clearly contrasts to its standard modern inheritance, expressed by the relation between preferences and utility.

The reason for such a difference with the usual approach lies in the mental process that Hume puts to the fore in order to explain the way pleasure determines desires and volition. Whereas pleasure is primarily, in Hume's words, an impression of sensation, it takes place in the birth of passions as reflecting an idea of pleasure, whose “force and vivacity” is precisely a “belief”, transferred to the direct passions of desire or volition that come immediately before action. As a result, from a Humean point of view, “belief” deals with decision under risk or uncertainty, as well as with intertemporal decision and indiscrimination problems.

The latter are explored within a formal framework, and it is shown that the relation of pleasure is transformed by belief into a non-empty class of relations of desire, among which at least one is a preorder.  相似文献   

12.
Neoliberal political movements advocate privatization of public pension systems. Globalization imposes pressure on nations to conform to neoliberal policy views with respect to the design and structure of social insurance, including public pension systems. The paper begins with an investigation of the economic, ethical and ideological dimensions of the privatization debates in the U.S.; it argues that privatization advocates may be largely moved by ideology, since the other reasons advanced appear weak or unfounded. The second part discusses the history of Social Security, the purposes for its creation, and some of its economic effects. Differences between public and private pension systems are considered. A brief international comparison of some aspects of public pension system finance and benefit structures is presented. The final section considers the ethical, macroeconomic and distributional implications of privatization, prefunding and payroll tax funding, and argues for a pay as you go system financed with income taxes. In order to promote equity, economic security, community, and social cohesion, public pension systems should be universal in coverage. In order to reduce the inequality, income insecurity, and aged poverty generated by market economies, public pension systems ought to be progressive: benefit/contribution ratios should be inversely proportional to income, and progressive income taxes should finance the system. To promote economic growth, the systems should be financed on a pay-as-you-go basis, and should not be prefunded except for an emergency reserve. The fiscal policy recommendations partially depend upon the theory developed by Abba Lerner in the 1940s, and recently advanced by Wynne Godley and Randy Wray: Lerner's “principle of functional finance.”  相似文献   

13.
John Stuart Mill has traditionally been portrayed as self-contradictory and failing to construct a unified social theory. Recent scholarship, however, has challenged this view, finding Mill's work to be creatively synthetic in bridging the antinomies inherent in liberal democratic thought. This revisionist interpretation of Mill is advanced by an understanding of his theory of justice and its role in shaping his policy positions on issues such as welfare, education, voting rights, property rights, taxation, government intervention, and the future of capitalism.  相似文献   

14.
Arik Hesseldahl In the aftermath of the September 11 attacks, U.S. officials quickly turned their attention to other potential targets, including California's Golden Gate Bridge. What would happen if terrorists took down the bridge between San Francisco and Marin County? How much of the region would be affected and for how long?  相似文献   

15.
Chinese small towns are usually developed with single core industry,and the urban brand is the identity of a town that formed with the development of its indust...  相似文献   

16.
In this paper,using data for the Bist 100 index,we investigate the presence of nonlinearities by employing several nonlinearity tests.The Brock,Dechert,and Sche...  相似文献   

17.
中国拥有世界五分之一强的人口 ,收入又在迅速增长。因此 ,国际上很自然地会考虑或推测她在今后的几十年是否有能力养活自己。中国的人口预计将从 2 0 0 0年的 1 2 8亿增长到 2 0 2 0年的 1 4 6亿 ,和 2 0 3 0年的 1 4 9亿。与此同时 ,人均收入的增长将导致对家畜和鱼类产品更大的需求 ,因而对饲料的需求也将有很大的增长  相似文献   

18.
The European Union,which is at the beginning of its term of office for all Member States in the European Parliament,the European Commission,its governing body a...  相似文献   

19.
The payment of interest on reserves has been a common practice in inflationary economies. This policy may seem paradoxical since it involves returning part of the seigniorage, generated by the inflation process, with the intention to finance the fiscal deficit. This paper argues that the motivation for this policy can be captured by the discretionary regime, where the policymaker pays interest on reserves because he is concerned with the erosion of real liquidity by inflation, which is in part beyond his control. However, this policy is an unlikely outcome in the commitment regime, where the policymaker is in full control of inflation.  相似文献   

20.
Neurally reconstructing expected utility   总被引:2,自引:0,他引:2  
While the concept of “expected utility” informs many theories of decision making, little is known about whether and how the human brain might compute this quantity. This article reviews a series of functional magnetic resonance imaging (FMRI) experiments designed to localize brain regions that respond in anticipation of increasing amounts of monetary incentives. These studies collectively suggest that anticipation of increasing monetary gains activates a subcortical region of the ventral striatum in a magnitude-proportional manner. This ventral striatal activation is not evident during anticipation of losses. Actual gain outcomes instead activate a region of the mesial prefrontal cortex. During anticipation of gain, ventral striatal activation is accompanied by feelings characterized by increasing arousal and positive valence. These findings affirm the role of emotion in the anticipation of incentives, and may provide an initial step towards a neural reconstruction of expected utility.  相似文献   

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