《技术制图》新旧标准对照

以对照方法介绍了《技术制图》与《机械制图》中三个基础标准的适用范围、采标情况及基本内容。     

Fragmentation, Engel's Law, and Learning

This paper outlines the conditions under which trade is beneficial for a developing country's growth. A developing country suffers from two disadvantages: low income and a comparative disadvantage in the production of modern manufactured goods—goods which allow a high rate of human capital accumulation through learning by doing. Low income together with Engel's law imply that developing countries consume and produce very few modern goods in autarky and hence grow slowly. With international fragmentation of production, a developing country may find comparative advantage in the production of some stages of modern goods despite an absence of comparative advantage in the production of modern goods under “100% local content.” More resources can then be allocated to the modern goods sector leading to greater learning externalities and hence growth under free trade than in autarky.     

文化变迁与教育价值观

文化变迁是历史发展的必然。我国文化现代变迁的主要特征为开放性、多元性。在重视人与人之间的关系、轻视人与自然之间关系的中国传统价值观的直接影响下,传统的中国教育价值观具有如下特点:重视教育的工具价值,轻视其内在价值;群体利益高于个人利益;重视教育的道德伦理价值,轻视其认知价值。当前,我们要注意科学价值观与人文价值观的有机结合,做好教育价值观的转型工作。     

三峡国际招标：培育当代招标人——访三峡国际招标有限责任公司总经理于滨

提起“三峡工程”，人们是既熟悉又陌生。熟悉的是“三峡”的名气和“三峡工程”在全国乃至全世界的倍受关注：陌生的是三峡工程的运作和它的建设者们，因为他们行事低调，一直在默默地耕耘着，尤其是这些总处于敏感地带的“三峡招标人”。     

The mean-variance investment problem in a constrained financial market

This paper extends the mean-variance analysis and the two-fund separation theorem to a market with some constraints, such as, the incompleteness, prohibition of short-selling, and partial information, with stochastic interest rate, and with stochastic volatility for risky assets. By maximizing a quadratic utility of terminal wealth, we show that the efficient frontier for the problem is a straight line in the mean-standard-deviation diagram. The quadratic utility function exhibits mean-variance efficiency. Our results apply to portfolios of claims in a single period, multiperiod, and continuous time.     

小产权房的出路何在——基于产权经济学的分析视角

小产权房问题的本质是产权制度问题,即经济意义上的产权和法律意义上的产权相互分离,经济意义上的产权没有被正式的法律制度承认和赋权。从产权经济学的理论视角来看,要解决小产权房的问题就需要通过分解和组合土地与房屋的所有权及使用权等,同时引入"规划指标权",以此来扩大产权主体的范围,增加产权的权利内涵和创新产权规则,最终形成多元的组合式房屋产权格局。     

中国改革历程中的产出和价格波动:货币所扮演的角色

中国经济正在其改革历程中经历着经济增长和通货膨胀的周期性波动.关于货币在这些波动中所起的作用,经济学家有着不同的观点.该文运用基于交易方程式的结构化 VEC 模型,对这些观点进行了探讨.我们发现,在长期,货币对产出和价格的变化做出适应性调整,而并非这些变化的原因.而在短期,价格变动要归因于那些对货币和价格有持久影响而对真实产出没有持久影响的冲击.这些冲击对多数的货币波动负责,并且强烈地影响产出.     

生态审美视野下中国古典诗歌中的茶

自然原生的茶以其平凡却不失高雅的方式,渗透到生活的各个领域和社会各个阶层中,由最初的解渴药用功能发展为能从中得到启发、感悟并萌生出精神内涵的独具审美意味的饮品,逐渐成为古代文人们关注的对象。饮茶成为他们感受生命愉悦的一种方式,他们以茶为媒,激发诗兴,享受闲适的生活乐趣,抒写自己的生命情感,表达自己的人生态度。从生态美学的视角对古典诗歌中的茶意象进行解读,借此观照其＂自然＂存在的生命哲学和人格魅力,以期为深处生态危机和生存困境中的现代人提供一种理想的生存方式。     

Using a dual-frame design to improve phone surveys on political attitudes: developing a weighting strategy for limited external information in Hong Kong

Quality & Quantity - In recent years, rapid increases in mobile phone ownership and decreases in landline users have led to potential biases in landline phone survey estimations. Mobile-only...