中国牧草产业地理集聚特征及影响因素

种植牧草是当前中国种植业结构调整的有效途径,发展牧草产业是推进中国农业供给侧结构性调整和"粮改饲"工作的重要举措。文章运用区位基尼系数、产业集中率、空间自相关分析和空间面板计量模型的方法,对2001—2015年中国牧草产业地理集聚特征及其影响因素进行定量分析。研究表明:中国牧草产业地理集聚特征显著,整体上呈现出先波动下降后急剧上升的特征,7种牧草的地理集聚程度都非常高;牧草产业向"三北一南"区域集聚的趋势愈加明显,在省域尺度上空间地理集聚的程度也逐渐增强,其地理集聚的高—高(H-H)聚集区省份变化不大,而低—低(L-L)聚集区省份在东南部则有显著的增加。实证研究表明牧草比较收益、生产性土地面积比重、草食家畜养殖量、机械化水平和政策是影响牧草产业地理集聚的主要因素。     

中国高新技术产业空间集聚影响因素实证研究

中国高新技术产业发展呈现出空间集聚特征,但是五个行业的集聚水平存在较大差异.从经济地理、新经济地理和政府干预三个方面分析影响高新技术产业空间集聚因素,研究表明这三个方面对高新技术产业空间集聚都具有显著作用.     

长江经济带高耗能产业集聚特征及影响因素研究

高耗能产业在长江经济带工业体系中占据较大比重,采用产业集聚指数评估长江经济带高耗能产业集聚水平,采用计量分析方法验证长江经济带高耗能产业集聚水平的主要影响因素。研究结果表明：长江经济带高耗能产业整体集聚趋势明显,各细分行业集聚趋势存在差异;高耗能产业动态集聚水平的省际差异变化趋势尚不明显;资源禀赋、基础设施、人力资源与高耗能产业动态集聚水平呈正向相关关系,环境规制、财政政策对高耗能产业动态集聚水平有负向抑制作用。促进长江经济带高耗能产业绿色转型发展,应重点优化产业空间布局、严控产业污染转移、加强绿色制造人才队伍建设。     

中国省域文化产业集聚影响因素实证分析

笔者利用2005年～2008年省级面板数据,对影响中国文化产业集聚的经济地理与产业政策因素进行了实证分析.研究结果表明:(1)政府的财政支持促进了文化产业集聚,而金融服务对文化产业集聚的影响不显著;(2)文化消费需求、文化企业数量、人力资本水平与城市化对文化产业集聚有正面影响;(3)沿海区位与文化资源禀赋有利于文化产业集聚,在控制新经济地理与产业政策因素影响下,经济地理因素对文化产业集聚的影响不再显著.     

中国文化产业空间集聚水平测度及影响因素研究——基于省际面板数据的分析

本文对中国文化产业2005-2009年的集聚程度进行了精确测定,并从区域和行业两个角度分析其集聚特征,发现我国文化产业已显现出较强的集聚现象,且有明显的地域和产业特色.影响因素的面板数据回归模型结果表明:文化基础设施,人力成本、交易便捷性对文化产业的空间集聚有显著的稳健的正向影响,文化产业向低劳动力成本地区转移的倾向较小.由于人力资本具有可移动性,地区人力资本对文化产业分布的影响相对较小.在引入其他两组因素后,集聚经济和投资支出对文化产业集聚的正向影响不显著.     

大城市技术密集型制造业空间演化特征及动因分析——以北京市电子设备制造业为例

研究城市内部产业空间演化及其动因机制对优化大城市产业结构和空间布局有重要的现实意义。文章以北京市电子设备制造业为例,使用中国工业企业数据库分析大城市技术密集型制造业的空间演化特征,发现其分布集聚明显、受开发区政策影响较大、有适宜的人口分布区间,演化过程有较强的路径与地理依赖特征。使用动态面板GMM方法对产业演化动因进行实证研究,结果表明,相较于多样化经济带来的雅各布斯外部性,技术密集型制造业集聚受专业化产生的马歇尔外部性影响更大;地租成本和劳动力成本均阻碍产业向城市中心集聚;地区创新能力和开发区政策对产业空间演化有明显的推动作用。     

产业集聚、所有制结构与外商投资企业的区位选择

产业集聚理论认为,同一产业内的企业由于正的外部性具有聚集在同一地理范围内的倾向。在本文中,我们运用条件Logit概率模型,结合国家统计局对外商投资企业的调查数据,估计产业集聚程度、所有制结构以及其他传统的地区特征因素对外商投资企业地理区位选择的影响。我们发现存在非常显著的集聚效应,这意味着偶然的政策和历史因素将长久地影响企业生产活动的地理分布,这对理解中国的地区差异具有重要意义。     

中国制造业地理集聚的时空演变特征分析:1980-2008

文章分析了中国制造业地理集聚的时空演变特征,结果表明:(1)随着中国市场化改革的推进,制造业地理集聚程度明显提高,制造业已显现出较高的集聚水平,东部地区是制造业的主要集聚区域;(2)经济全球化对中国制造业空间分布产生了重要影响,不同类型制造业地理集聚的特征及时空变化趋势存在明显差异,制造业地区专业化分工格局在中国基本形成;(3)近年来促进产业扩散的离心力作用开始显现,部分制造业呈现由东部地区向其他地区转移的态势。     

产业集聚、所有制结构与外商投资企业的区位选择

产业集聚理论认为，同一产业内的企业由于正的外部性具有聚集在同一地理范围内的倾向。在本文中，我们运用条件Logit概率模型，结合国家统计局对外商投资企业的调查数据，估计产业集聚程度、所有制结构以及其他传统的地区特征因素对外商投资企业地理区位选择的影响。我们发现存在非常显著的集聚效应，这意味着偶然的政策和历史因素将长久地影响企业生产活动的地理分布，这对理解中国的地区差异具有重要意义。     

中国农产品加工业的产业集聚演化实证

以2006—2016年中国(不包括港、澳、台地区)农产品加工业为例,从强调区域内外两方面因素出发,利用演化经济地理思维构建分析框架,探讨了产业集聚的演化机制。结果表明:①区域产业集聚演化是在区域内外部因素共同作用下路径依赖和路径创造的过程。②中国农产品加工业集聚水平的区域差异明显,地理集聚变化与产业转移高度相关;农产品加工业在中西部地区的集聚水平显著增强,表现出路径创造特征。分行业来看,中部地区对劳动力密集型农产品加工业的路径创造较为明显;长江中上游地区对原材料—资本密集型农产品加工业的路径创造突出,但烟草制品业集聚格局较为稳定,呈现出由区域路径锁定而导致的空间锁定特征。③对历史基础的依赖是影响农产品加工业集聚演化的关键,且是东部地区农产品加工业保持高水平集聚的最主要原因;产业转移显著推动了中西部地区农产品加工业的集聚;产业多样化与外商投资对农产品加工业集聚的影响存在明显的区域异质性,在东部表现为负向作用,在中西部表现为正向作用。     

John Stuart Mill's Theory Of Justice

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.     

A Rich Vein for “Reality Mining”北大核心CSSCISSCI

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?     

中国养活自己能力的长期预测:技术和政策分析

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     

John Stuart Mill's Theories of Wealth and Income Distribution

Although he was much influenced by David Ricardo when he wrote the classical part of his Principles , John Stuart Mill was not a Ricardian when he penned his theories of wealth and distribution. They are based on a triple foundation. First, a belief that economics is a moral discipline. Second a theory of custom-driven human behavior. Third, an empirically formed conviction that the institutions of state, education and business cooperate to structure the distribution of income. On the basis of these presuppositions, Mill formulated 1) an institutional theory of the formation of human and non-human wealth and 2) an even more institutional theory of distribution demonstrating how the aforementioned institutions malignantly skew the distribution of income to the advantage of the propertied classes and to the extreme disadvantage of the working class. As a social economist, Mill recommended institutional reforms designed to eradicate the poverty of the working class.     

Toward a Phylogenetic Reconstruction of Organizational Life

Synopsis Classification is an important activity that facilitates theory development in many academic disciplines. Scholars in fields such as organizational science, management science and economics and have long recognized that classification offers an approach for ordering and understanding the diversity of organizational taxa (groups of one or more similar organizational entities). However, even the most prominent organizational classifications have limited utility, as they tend to be shaped by a specific research bias, inadequate units of analysis and a standard neoclassical economic view that does not naturally accommodate the disequilibrium dynamics of modern competition. The result is a relatively large number of individual and unconnected organizational classifications, which tend to ignore the processes of change responsible for organizational diversity. Collectively they fail to provide any sort of universal system for ordering, compiling and presenting knowledge on organizational diversity. This paper has two purposes. First, it reviews the general status of the major theoretical approaches to biological and organizational classification and compares the methods and resulting classifications derived from each approach. Definitions of key terms and a discussion on the three principal schools of biological classification (evolutionary systematics, phenetics and cladistics) are included in this review. Second, this paper aims to encourage critical thinking and debate about the use of the cladistic classification approach for inferring and representing the historical relationships underpinning organizational diversity. This involves examining the feasibility of applying the logic of common ancestry to populations of organizations. Consequently, this paper is exploratory and preparatory in style, with illustrations and assertions concerning the study and classification of organizational diversity.     

Information infrastructure: Who builds broadband networks?

This paper examines the essential difference between the U.S. and Japan, when one considers information infrastructure. There are seven perception gaps between the U.S. and Japan concerning Information Infrastructure policies. These gaps must be understood in order to compare the countries' governmental policies in this area. In looking at the present circumstances, the essential question to answer concerns who is to build, own and operate the network(s) of the infrastructure. Liberalization is certain to be a central factor in the ongoing telecommunications debates. Now that customers have had a taste of the liberalized market-place, the movement toward more open markets will be difficult to stop. When considering options, it is necessary to pay close attention to standardized network access and the increasingly important role software plays. These issues are causing us to take a new approach to the traditional role played by regulators. They also force a closer look at the appropriate structure of utility companies. This paper addresses the above issues in hopes of stimulating dialog on the new telecommunications infrastructure paradigm.     

Nonlinearity in Stock Exchange Markets: The Case of Bist 100 Indices

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...     

Solidified Branding Function: How the Urban Brand Affects a Small Town’s Development? Case Study of Wangqingtuo,Tianjin, China

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...     

海岛地区产业演替及资源基础分析--以舟山群岛为例

改革开放以来,舟山市产业构成发生了显著变化,其经济发展过程可以划分为三个阶段。1992年前,是以产业结构渔业占绝对地位的单一结构阶段;1993—1998年,以旅游业为主的第三产业快速发展阶段;上世纪末以来,又进入了新一轮的经济发展时期,即工业产值比重快速增加阶段。根据海岛的自然资源基础和特点,在新世纪的经济发展过程中,舟山市应定位为生态型的港口旅游城市。以港口及临港工业为主导,以海岛旅游和海洋经济为特色,大力发展第二产业和第三产业。海岛地区的主导产业应体现海岛资源优势及区位优势,以集群性环保型产业为主。同时由于海岛地区淡水资源缺乏,主导产业也应着重选择低耗水型产业。