试论工程技术的性质和特点

工程技术是自然属性、社会属性、生产力属性和商品属性的统一体;具有改造世界的实用性和可行性、创造价值的功效性和经济性、自成体系的系统性和综合性、历时发展的先进性与时效性等特点。     

Manufacturing versus Distribution: Implicit Pricing of Real Property Characteristics by Submarket

This article develops and tests the idea that the industrial real estate market is an aggregate market consisting of at least two submarkets—manufacturing and distribution. While there is no observable difference in implicit pricing of most industrial property characteristics across these two submarkets, some property-characteristic implicit prices do differ. Therefore, manufacturing and distribution submarket property-pricing functions are best estimated in aggregate, while making allowances for variability of coefficients on some property characteristics. For this sample of 331 industrial property sales from the southeastern region of the United States, the two submarkets vary with regard to implicit pricing of building volume, below-average building condition, site area, and dock-high doors.     

均值方差偏好和下方风险控制下的动态投资组合决策模型

本文在均值方差框架下，研究了下方风险控制下的动态投资组合问题。在目标函数中考虑了投资组合的最坏结果，利用标准的期权定价理论，给出了最优投资策略的解析式。该投资策略等价于一个关于“资产”最小二阶矩组合的欧式看跌期权和无风险资产的组合，而且两基金分离定理仍然成立。     

经济发达地区耕地保护问题研究——以长江三角洲地区为例

长江三角洲是我国经济最发达、人地关系矛盾最为紧张的地区之一。工业化、城市化迅速,经济发展客观上造成了对土地的巨大需求,同时,该地区人多地少,耕地后备资源不足,加上管理等因素,耕地锐减的状况日趋严峻。文章以长江三角洲地区为例,在分析了该区土地开发利用存在的问题后,对经济发达地区耕地保护的建议和措施作了分析。     

厦门市服务业发展特点与对策研究

在对厦门市服务业发展的特点及其成因进行深入分析的基础上,有针对性地提出了总体对策与若干具体建议。     

论生态经济系统的基本特征

生态经济系统是人类经济活动干预自然生态系统的结果，有其自身的特性。了解这些特性，有助于认清生态经济规律，为经济建设服务。本文较详细地对生态经济系统的特性进行了探讨。     

Study on the Spatial Characteristics and Adjustments of the Tourist Demands in China

With the development of the social economy, Chinese tourism will surely change from medium scale to massive scale. As people are more and more focusing on the inner values of life style, new types of tourist demands will emerge at anytime, and the spatial structure of tourist demands will show new characteristics as well Until now there is few study on tourist demand, especially on its spatial pattern. Study on spatial characteristics of tourist demand will contribute to spatial optimization and adjustments of tourist flow and supply. So this article has put forward the spatial pattern of tourist demand in China and measures of spatial adjustments and grade system of the spatial adjustment of tourists demand.     

湖南干旱特征及其对经济的影响

本文根据湖南省志和湖南统计年鉴的资料,将旱灾分为部分地区干旱年、大范围干旱年、全省性干早年和全省性大早年.用定量统计标准统计出旱灾年数,分析得出了湖南的干旱灾害特征和形成原因及其对湖南经济的影响,并提出了相应的对策.     

《庞培城》写作技巧赏析

本文阐述了《Pompeii》一文的写作风格，尤其是其在布局谋篇上的技巧及语言的灵活多变，为读者阅读此文提供了有益的帮助。     

对我国居民储蓄超常增长的理性思考

截止到2003年9月末,我国城乡居民储蓄首次突破10万亿元,出现储蓄超常增长现象,引起人们关注.本文分别从不同角度和侧面分析了储蓄超常增长现象的主要特点,指出了储蓄超常增长的主要原因,透视了储蓄超常增长带来的正负效应.