贸易开放度与中国经济增长关系的地区差异研究

为了探求中国的开放政策是否促进了经济增长，以及开放政策对不同区域的作用是否存在差异，本文在相关文献回顾的基础上，运用中国大陆地区28个省、自治区和直辖市（海南、重庆、西藏除外）1984-2004年的相关数据，采用Panel Data模型对贸易开放度与中国经济增长的关系问题进行了实证研究。研究的结论认为开放的对外经济贸易政策促进了中国的经济增长；井且通过研究发现这一促进作用存在着地区差异，对于中西部地区来说，促进作用更大。     

Heterogeneity and Share Contracting in Medical Group Practices

This paper offers an empirical analysis of the relationship between income sharing rules and physician heterogeneity in medical group practices.The economies to group formation associated with risk–sharing, mutual monitoring,and internal referral are served by sharing at least a portion of group income equally. Sharing group income equally is problematic, however, when group members differ in their contribution to group income. Member contributions to group income may differ because of differences in ability, effort, or the price of services across specialty fields. The analysis below is addressed to the question of how income sharing rules in physician groups are affected by variation in member contributions. The analysis finds evidence that heterogeneity in member contributions to group income limits the use of equal income sharing rules in multispecialty groups relative to single specialty groups, and large groups relative to small groups. Nevertheless, 65% of all groups in the survey share at least a pn of group income equally, which broadly suggests that the joint surplus enhancement from risk sharing, mutual monitoring, and internal referral are sufficient to overcome the incentive problems of such rules     

Heterogeneity in Economics

This paper argues that heterogeneity of agents’ characteristics plays a fundamental role in the economy and should do so in economic models. Three aspects are considered. Firstly the notion that assuming heterogeneity was a solution to the problem posed by the results of Sonnenschein Mantel and Debreu is considered and it is suggested that the more pragmatic approach adopted by Hildenbrand is likely to be more productive. Next the role of adaptation and evolution which necessarily involve variety or heterogeneity is examined. It is suggested that heterogeneity will persist since agents will only slowly learn to adapt and that in the meantime the environment will change. Lastly the role of heterogeneity in financial markets is examined. It is suggested that heterogeneous and varying expectations may account for many of the stylised facts which do not seem to be consistent with the standard financial markets model.“Variety is the spice of life”     

城市可持续发展能力成长过程理论解析

城市可持续发展是国家和地区可持续发展的核心和关键，城市可持续发展能力则是城市可持续发展的基础依托和潜在支撑。促进城市可持续发展能力的持续、快速、健康成长是实现国家和地区可持续发展以及构建和谐社会的必由之路。城市可持续发展能力相关课题的理论与实证研究必须着眼于城市可持续发展能力成长的时空过程周此，对城市可持续发展能力成长过程进行理论分析和探讨就显得尤为必要。     

区域经济一体化、中国-东盟自由贸易区与广西边境贸易研究

区域经济一体化、中国-东盟自由贸易区与广西边境贸易是三个具有密切关系的三个问题。其中区域经济一体化是世界经济一体化的重要组成部分；中国-东盟自由贸易区则是区域经济一体化在亚洲的具体表现形式。广西边境贸易经过了起步、快速增长等阶段，既有着自己独特的优势，也面临着资金困乏、政策影响、投资环境不佳等新问题。必须通过政策改进、环境改善、加强合作等措施来增加边境贸易的竞争力。     

地区专业化的度量

在封闭经济假设和地区间需求结构一致假设下,本文构造了地区专业化的度量指标——地区专业化系数;这一度量指标更具一般性,产业结构差异系数、空间分布差异系数、绝对利差及行业分工指数等指标只是作为它的特例而存在。在讨论地区专业化问题时,如果忽略地区的(或行业的)相对规模因素,除了犯有逻辑推理错误外,在实践中还存在着可能得出错误判断的倾向。本文发现:中国工业的地区专业化水平自20世纪80年代中后期以来有了较大程度的提高;如果忽略地区的(或行业的)相对规模因素来讨论中国工业的地区专业化问题,则会高估中国工业的地区专业化水平。     

RTAs:中国进一步扩大对外经贸合作的新途径

20世纪90年代尤其是世界贸易组织建立和运作以来,区域贸易安排迅猛发展,呈现出许多新的特点.在经济全球化和中国已加入世界贸易组织的新形势下,中国积极参与和推进区域贸易安排是在更大范围、更广领域和更高层次上参与国际经济技术合作与竞争、以开放促改革促发展的新途径.应进一步加强区域贸易安排的研究,建立国家区域贸易安排运作机制,制定切实可行的区域贸易安排计划,以提升中国经济的竞争力,迎接世界区域贸易安排发展带来的机遇和挑战.     

Unemployment insurance: The role of electoral systems and regional labour markets

Levels of insurance against unemployment vary considerably across countries. Replacement rates, the ratio relating income from unemployment to what people earned when they were employed, are higher in countries with proportional electoral systems than in countries with majoritarian systems. Also, replacement rates are positively correlated with per capita income and negatively correlated with the countries' unemployment rates. I develop an electoral competition model that replicates these stylized facts.     

中国区域经济发展差异及其原因的多尺度分析

本文采用经验模态方法对中国1953—2002年区域经济发展差异进行多尺度分析,并对不同尺度的区域经济差异的原因进行探讨。研究表明,50年来中国区域经济差异波动主要以60年尺度、17.5年尺度和趋势为主,近期区域差异呈扩大趋势。从不同尺度生产要素投入差异和区域差异的关系看,要素投入差异会引起区域差异,区域差异也会引起要素投入环境差异并引发要素投入差异的变化,在制定区域政策时应考虑区域差距波动的短期性和长期性。     

关中地区城市化水平地域差异及影响因素分析

将陕西省关中地区近25年的城市化进程分为三个阶段,从人口、社会经济、地理环境等角度构建评价指标体系,在不同的阶段利用灰色关联方法分析影响关中地区城市化水平地域差异的主要因素,并根据贡献度进行排序,找到了在近25年中影响关中地区城市化水平地域差异的重要因素.