关于知识经济的几个问题

本文对有关知识经济的一些基本问题进行了比较深入全面的论述。其中重点论述了知识经济的基本内涵、知识经济的基本特征、知识经济对当代与未来社会的作用与影响，以及如何迎接知识经济时代的挑战等重要问题     

动态建模:一种颇具生命力的经济计量学新方法

19世纪末,20世纪初,随着统计理论和经济理论研究的不断深入,经济问题研究中的数量分析方法也得到了发展,经济计量学作为一门独立的经济学科已初步形成。但是,作为经济计量学的基本理论,则直到本世纪三四十年代才逐步形成。这套理论的主要特征是:(1) 引入概率论思想作为经济     

Marx’s International Outlook and Its Contemporary Value

Marx probed into the laws of the evolution of world history and the international system from the perspective of grand history, incisively revealing the inherent historical dynamics and evolutionary secrets of the laws of this development and thus providing a new analytical framework for our understanding of the nature of international relations and the characteristics of the era. Compared with related international relations theories of the same period, Marx’s international outlook had a unique class standpoint and methodological principles and adopted rigorous speculative logic and lofty values. Marx conducted scientific research and dialectical analysis of the laws of evolution and the intrinsic nature of international society, especially the historical mission of the proletariat. These ideas, unique in the intellectual and theoretical spectrum of international relations, provide an intellectual guide for the innovation of Chinese diplomatic theory in the new era.     

How do the news media frame crises? A content analysis of crisis news coverage

The present study is a content analysis of crisis news frames found in 2006 crisis news coverage. A total of 247 news stories were analyzed to examine which of five news frames (attribution of responsibility, human interest, conflict, morality, and economic) and level of responsibility (individual and organizational level) were used by the media according to crisis type. While the attribution of responsibility frame was the most predominantly used in crisis news coverage, the use of each of the five frames depended on crisis type. The use of level of responsibility also varied by crisis type and was related to the five frames; individual level of responsibility was used more with morality, human interest, and attribution of responsibility frames. Implications and suggestions based on the results were discussed.     

名义账户制下城镇职工基本养老保险精算分析

在我国养老保险向部分积累制转型面临巨额转轨成本、做实个人账户试点严重受挫的背景下,是否选择名义账户制便成为一个重大的理论和现实问题.目前对我国城镇职工基本养老保险实行名义账户制的实证研究较少,而已有的实证研究或者建立在“准名义账户制”基础上,或者没有全面考虑“老人”和“中人”,不能真正揭示养老保险模式转向名义账户制后的实际情况.文章在严格按照名义账户制财务平衡机制的要求,既考虑“新人”,又考虑“中人”和“老人”的基础上,构建人口和精算模型,并使用六普及其他新数据进行预测,发现名义账户制虽能在精算上保持平衡,但是“老人”、“中人”、“新人”以及不同缴费年限人群的养老金收入替代率存在较大的差异,从而可能使部分人群退休后陷入贫困的境地.     

在构建和谐社会中强化企业社会责任

在构建社会主义和谐社会的今天,企业必须更加积极主动地承担起各种应尽的社会责任。这些社会责任包括服务社会发展、尊重员工权益、维护公平正义、保护生态环境、支持社会公益等等。政府应和各种社会力量一起,通过加强宣传教育、健全法律体系、创新奖惩机制、加大监督力度等多种途径,为推进企业履行社会责任创造良好环境并提供强劲动力。     

对当代艺术的一些思考

当代艺术在内涵上主要指具有现代精神和具备现代语言的艺术。对待当代艺术应以宽容的态度去接受和评判,而当代艺术的道德底线则是应倡导共生、共荣、仁爱、和谐的传统文化。     

也论“疲软”的欧元

从１９９９年元月１日欧元在除英国、瑞典、丹麦、希腊４国之外的欧盟１１个国家中正式启动以来,一直是人们观注的热点。欧元并没有象事前有些人预期或猜测的那样成为一种强势货币,并迅速构成对美元的挑战。与之相反,欧元兑美元的汇率却一跌再跌,已经从启动之时的１欧...     

A Combined D.C. Optimization—Ellipsoidal Branch-and-Bound Algorithm for Solving Nonconvex Quadratic Programming Problems

In this paper we propose a new branch-and-bound algorithm by using an ellipsoidal partition for minimizing an indefinite quadratic function over a bounded polyhedral convex set which is not necessarily given explicitly by a system of linear inequalities and/or equalities. It is required that for this set there exists an efficient algorithm to verify whether a point is feasible, and to find a violated constraint if this point is not feasible. The algorithm is based upon the fact that the problem of minimizing an indefinite quadratic form over an ellipsoid can be efficiently solved by some available (polynomial and nonpolynomial time) algorithms. In particular, the d.c. (difference of convex functions) algorithm (DCA) with restarting procedure recently introduced by Pham Dinh Tao and L.T. Hoai An is applied to globally solving this problem. DCA is also used for locally solving the nonconvex quadratic program. It is restarted with current best feasible points in the branch-and-bound scheme, and improved them in its turn. The combined DCA-ellipsoidal branch-and-bound algorithm then enhances the convergence: it reduces considerably the upper bound and thereby a lot of ellipsoids can be eliminated from further consideration. Several numerical experiments are given.     

郁达夫感伤小说再思考

郁达夫的伤感小说是时代精神的扭曲折射,是觉醒之后新路难觅的迷茫,其内在题旨是与五四精神并行的。达夫小说的伤感情调,是他个人气质,不幸经历、美学情趣和社会现状交融的结果。作者在感伤的背后热望个性解放的实现,他以自己的声音加入了五四新文学的合唱。尽管他的作品有明显的局限,但对其影响与贡献应给予于科学评价。他的主情小说的成功经验尤其是弘扬情感的真诚在今天仍有重要的借鉴意义。