云物流支撑下鲜活农产品供应链的优化升级

供应链上下游企业信息不共享导致鲜活农产品供需安全问题日益凸显,云计算的出现推进物流信息化进入了更高层次.通过介绍云计算与冷链物流的实质融合提出了冷链云物流的概念、功能、作用,构建了云物流服务平台体系架构,并从冷链云物流的优势出发探讨了云物流服务平台对鲜活农产品供应链的促进作用,分析了信息化对鲜活农产品流通体系现代化的推动作用;最后提出了加快鲜活农产品供应链优化升级的主要措施.     

士商合道：经济与伦理的价值生态--以汉代田庄经营为典型

本文以汉代田庄经营作为中国儒商的起源与典型之一,探求经济与伦理两种重要价值实现生态统一的可能性与现实性,并将统一根由归结为中国传统中的两种文化与精神,即士精神与商精神的合和,提出士商合道是优化经济与伦理价值生态的有效途径。     

Globalization of R&D and China: An Introduction

In this introduction, we discuss the recent changes in multinational corporations' (MNCs) research and development (R&D) strategies and China's rising role in this new development. Significant changes include: 1) More and more corporations have started overseas R & D operations; 2) the missions of many overseas R&D facilities have shifted from the traditional supplementing and supporting roles to become critical and strategic components of MNCs' global R&D networks; and 3) MNC overseas R&D operations have expanded their geographic reach to carefully selected developing countries. China has benefited from such changes and has become one major attraction for such R&D facilities due to its rich endowment of low-cost and well- trained scientists and engineers as well as its fast growing domestic market and burgeoning foreign investment in manufacturing. The explosion of foreign R&D investment has also been accompanied by the rapid growth of China's domestic investment in R&D. The growth in both domestic and foreign investment in R&D implies that China will improve its position in global economic and technological competition. However, it is unclear to the rest of the world about the implications of China's rising R&D and whether or not China can capture the value from the presence of foreign R&D centres. We conclude that issues related to China's science and technology development in general and foreign R&D in China in particular warrant more research in the future.     

Uncertainties,Imitative Behaviours and Foreign R&D Location: Explaining the Over-concentration of Foreign R&D in Beijing and Shanghai within China

This study examines the location of foreign research and development (R&D) establishments in China and reveals that such facilities are overly concentrated in Shanghai and Beijing, the two first- tier cities. We argue that the spatial concentration of R&D in Shanghai and Beijing is more intense than what can be expected based on the spatial concentration of foreign investment, science and technology resources and general economic activities. The spatial concentration is also greater than what is observed in more developed countries. This degree of concentration cannot be convincingly explained by the conventional, rational choice model that relies mostly upon factors such as market size, labour costs and infrastructure, among others. Our analysis suggests that site location decisions are also the product of imitative behaviours among decision makers faced with uncertainties and multiple risks, particularly in a transitional economy such as China's. We further discuss the implications for second-tier cities in competition for foreign R&D investment, suggesting that these cities should aggressively market their cities to foreign investors in order to reduce the perceived risks undermining their ability to attract R&D. We also speculate that as foreign investors become more knowledgeable about the rest of China, more companies will begin to establish R&D facilities in such second-tier cities.     

中国对外贸易遵循比较优势了吗

本文将居民消费、投资、政府支出、出口、进口视为产品,将劳动和资本视为原始投入,利用我国1994²010年31个省市区的相关数据估计了超越对数GDP函数的斯托尔珀—萨缪尔森效应和雷布津斯基效应,来验证比较优势在中国的适用性。本文发现进出口产品价格上升时都会致使劳动力工资上涨;另外,本文发现当资本存量增加时,从理论上按照赫克歇尔—俄林模型的预测劳动密集型产品的出口数量应该减少,但结果显示却是增长,对此可能的解释是政策上的出口鼓励和作为资本密集型产品的出口增加导致。本文的实证结果基本与赫—俄理论相符。     

解读沃尔玛(上海)缺货现象

被称为零售配送革命领袖的沃尔玛百货公司在中国市场上却遭遇缺货危机.本文将从国际生产综合理论的角度分析这一现象,认为沃尔玛近乎完美的物流体系由于区位优势的制约,正成为沃尔玛进军中国市场的一大障碍.     

贸易差额的衡量:基于所有权还是所在地

本文在借鉴西方主要国家和有关国际机构在为建立基于所有权的国际贸易统计框架所做方法研究和探索实践的基础上,尝试确立完整的基于所有权的双边贸易差额统计框架,并且把这一原则与现行的跨境贸易差额进行了比较。一方面指出现行的跨境贸易差额高估我国贸易利得的主要原因,是外资企业净出口被计为中国的出口,而实际上它是外国资本在国际化生产中获得的贸易利得;另一方面为将来如何调整统计口径、得到反映现实的统计结果,提供可供参考的方向。     

一种新的OFDM同步跟踪技术及其在VHF/UHF通信系统中的应用

本文主要研究了我国加工贸易领域信息化管理的系统组成和发展状况,通过深入分析加工贸易的业务流程、信息化管理特点、发展困惑等内容,提出了优化加工贸易信息化管理的相关举措。     

中国财政政策动态效应的实证分析:1998~2004

本文对中国1998~2004年间实行的积极性财政政策的动态效应进行了实证研究。基于对数据性质的考察,我们选用了结构性VECM模型来研究。在结构性模型中,我们引入了长期约束和短期约束来识别宏观经济变量中的冲击向量,并利用脉冲响应函数和方差分解的方法,对冲击向量的动态效应进行实证研究。模型的实证结果表明,财政支出冲击对总产出具有正向效应而税收收入冲击则具有负向效应,且支出冲击的正效应略大于税收收入的负效应。该结论印证了凯恩斯主义关于财政政策的主要结论。同时实证结果对我国1998年以来的积极财政政策的效果给予了支持:增加财政支出的效应很大程度上被同期税收收入的增长所抵消,财政政策对产出的贡献并不像预期的那么显著。     

黑龙江省县域旅游地管理模式比较研究

文章立足国外县域旅游地的管理实际,深入研究其在旅游地开发建设中的做法及管理经验,结合黑龙江省县域旅游地的管理模式进行比较分析,从而借鉴国外县域旅游地管理的成功经验,对黑龙江省县域旅游地的可持续发展起到一定的指导作用。