Technology intensity and agglomeration economies

This article investigates the relationship between industry technology intensity and the impacts of agglomeration economies on industrial growth. Many recent studies suggest the actual economic impacts of different forms of agglomeration economies depend on industrial characteristics such as technology intensity, but systematic empirical evidence is still lacking. To fill this gap, we analyze employment data covering all 3-digit NAICS industries of U.S. counties. The results confirm that technology-intensive industries are more likely to benefit from Jacobs spillovers as measured by related variety, while sectors with low technology intensities can better benefit from MAR spillovers as measured by regional specialization.     

国外发展循环经济的启示

自从上世纪90年代确立可持续发展战略以来，德围、日本、美国等发达国家正在把发展循环型经济、建立循环型社会看作是实施可持续发展战略的重要途径和实现形式。研究国外发展循环经济的经验和教训，对于我国实施循环经济，落实科学发展观，走可持续发展道路具有重要的启示。     

转型经济战略管理的文献研究

 通过文献研究对转型经济国家的企业战略管理学研究状况进行了评估。通过检索和甄别2001-2006年度发表在国际一流管理学刊物上的所有论文,确认了31篇与转型经济企业战略相关的文章。从课题、类型、方法、研究国家等各个方面对这些论文进行了归类和分析,认为转型经济的研究目前在主流学术界还还没有引起足够的重视,主要是因为转型经济国家有各自不同的特征,转型经济的前景存在变数以及研究中存在诸多客观的困难。     

虚拟企业与规模经济思辨

作为21世纪主流企业组织形态的是虚拟企业，如何组织设计虚拟企业，无论在理论研究还是在实际应用中都是一个非常重要的问题。从实际出发，介绍了虚拟企业的特点、组织运行方式，探讨了虚拟企业生产方式对原有规模经济概念产生的影响，提出新生产方式下规模经济的新特征。     

Paths of technology upgrading in the BRICS economies

This paper explores technology upgrading of BRICS economies based on a three-pronged approach, which distinguishes between the intensity of technology upgrading, structural change and global interaction. We develop a statistical framework based on patent indicators to measure technological upgrading and apply it to BRICS economies in the period 1980–2015. The paper shows that there is no single path of technology upgrading. Instead, we find several unique paths with different trade-offs between intensity, structural change and the nature of the global interaction. All BRICS economies display increased generation of frontier technological activities, while China and Russia have also increased the intensity of behind frontier technological activities. China has also diversified its technology knowledge base and entered into dynamic frontier areas. With increasing intensity of frontier technology activities of the BRICS, the relative, but not absolute, the importance of foreign actors and international collaboration has declined. However, BRICS economies seem to lack the organisational and complementary capabilities to match the extent of technology sourcing from abroad, observed in high-income countries. Our result represents the application of a new conceptual framework and contributes to assessing the sustainability of innovation-based growth among BRICS.     

浅谈毛竹丰产用材林培育的几项关键技术

毛竹是我国重要森林资源,竹林经济效益高。文章介绍了毛竹丰产造林关键技术、毛竹丰产林经营关键技术和毛竹林科学采伐三个方面,为毛竹的经营提供参考。