环境约束下中国地区工业化发展模式及路径选择

从技术效率和环境技术效率二维角度将我国工业化发展模式划分为四种类型,并利用１９９９-２００８年省级工业部门投入产出数据对我国３１个省市区的工业化发展路径进行实证研究。结果表明,东部地区相对实现了资源节约、环境友好型工业发展模式,而中西部地区总体上仍未走出资源浪费、环境污染型粗放式发展老路。地区间工业发展路径差异显著,河北、内蒙古、浙江、四川和重庆等地区实现了渐进式发展,广西实现了跨越式发展,陕西出现了倒退,而黑龙江、湖北、天津等地区则在经济效率和生态效率间摇摆。     

利用信息共享缓解牛鞭效应

文中首先阐述了牛鞭效应这一现象,其次从需求预测、批量订货和提前期等因素分析牛鞭效应产生的原因,最后提出供应链的各成员通过缔结契约供应合同实现信息共享以达到抑制牛鞭效应的目的。     

A model for diagnosing organizational behavior

This article has presented a general approach for thinking about organizational functioning and a process for using a model to analyze organizational problems. This particular model is only one way of thinking about organizations; its clearly not the only model, nor can we claim it's definitively the best model. It is one tool, however, that may be useful for structuring the complexity of organizational life and helping managers create, maintain, and develop effective organizations.     

Managing transitions to uncertain future states

The management of organizational change is a challenging task in any context. When events create a situation in which the future is uncertain, the task becomes even more difficult. In this article, I have tried to explore this difficulty, building on the views expressed by Charles Brown in the accompanying interview and using AT&T as a case in point.Although the nature of the problems inherent in managing transition to uncertain futures has become clearer, the solutions have not. What has been presented here is merely a first attempt at proposing some basic approaches for dealing with such situations. As such, it is an effort to extend our knowledge about how to manage organizational change effectively.     

制度质量、资本积累与长期经济增长

笔者在Aghion等(1999)包含资本的多部门模型基础上扩展内生增长模型,尝试将制度、内生人力资本和技术创新纳入统一分析框架,检验制度质量、资本积累和技术创新在长期经济增长中的作用。结果显示,长期经济增长既取决于制度质量和技术创新,也取决于资本积累和家庭偏好。正增长率的长期稳态均衡只有当制度质量达到一定水平才可能出现,且当均衡存在时,制度质量的改进会通过提高人力资本积累效率和垂直创新活动的期望收益而提高长期经济增长率。此外,政府的税收和补贴政策也能够影响长期经济增长。本文旨在为我国重启改革提供理论支撑和政策建议。     

改进的宽带信号有理数倍采样率变换结构

针对现有的数字器件无法满足对宽带信号进行有理数倍采样率变换的问题,提出了 一种改进的宽带信号有理数倍采样率转换结构。在分析抽取器与内插器顺序的基础上,得出 了等效变换的前提条件,并结合多相滤波结构使改进的结构更具有实际应用价值。仿真实验 证明了改进后结构的有效性。通过与现有有理数倍采样率变换结构运算量对比分析表明,改 进后的结构的运算效率为传统结构运算效率的1/（LM）倍,其中L和M为变换过程中的内插因 子和抽取因子。