突出区域特色建设海洋经济强区

做好海的大文章,大力发展海洋经济,已成为天津新发展的重大战略.汉沽作为天津滨海新区和天津口岸的重要组成部分,经过深入调研,对建设海洋经济强区已初步形成思路.汉沽因海而成区,近年伴随着海洋产业和城市发展,具备了实现海洋经济快速发展的基础条件.     

矩阵求逆的一个算法

由已知n阶矩阵A构造一个n阶矩阵序列A~(k)(k=1,…,n)以及相应的初等变换矩阵E_(kx),然后利用矩阵的乘法,递推求得A的逆或断定A不可逆。并且给出了算法和理论依据。     

Improved estimation of portfolio value‐at‐risk under copula models with mixed marginals

Portfolio value‐at‐risk (PVAR) is widely used in practice, but recent criticisms have focused on risks arising from biased PVAR estimates due to model specification errors and other problems. The PVAR estimation method proposed in this article combines generalized Pareto distribution tails with the empirical density function to model the marginal distributions for each asset in the portfolio, and a copula model is used to form a joint distribution from the fitted marginals. The copula–mixed distribution (CMX) approach converges in probability to the true marginal return distribution but is based on weaker assumptions that may be appropriate for the returns data found in practice. CMX is used to estimate the joint distribution of log returns for the Taiwan Stock Exchange (TSE) index and the associated futures contracts on SGX and TAIFEX. The PVAR estimates for various hedge portfolios are computed from the fitted CMX model, and backtesting diagnostics indicate that CMX outperforms the alternative PVAR estimators. © 2006 Wiley Periodicals, Inc. Jrl Fut Mark 26:997–1018, 2006     

Fixed Exchange Rates and Disinflation in Emerging Markets: How Large Is the Effect?

We examine developing countries which have institutional quality ratings for the effects of exchange rate rigidity on inflation. The level of institutional development exerts no effect on the impact of currency regimes. However, the interaction of institutional quality and exchange rates has, in the most plausible specifications, a negative impact on inflation. This suggests that fixed exchange rates exert at most a contingent effect on inflation, and indicates that countries in Eastern Europe and Latin America contemplating currency pegs would be better off improving institutional quality prior to adopting the euro or dollar and expecting a large subsequent disinflationary effect. JEL no.  F31, O11     

Theory and practice of value management and its innovation for natural resources from the perspective of sustainable development

The supreme obstacle for sustainable development of natural resources is the scarecity, bottleneck. So how to promote the sustainable utilizing and increase the using efficiency of natural resources is worth studying. This paper suggests that we should improve the model and means of evaluating method and value management based on th~ theory of natural resource compensation. This paper discusses the User Cost Method based on the microeeonomicaspect which can change the evaluating method for natural resources. From the perspective of value managemen model, we should use the User Cost Method to realize the linkage and integration of micro and macro eompensation for natural resources. Based on the evaluating and aecounting idea User Cost Method, this paper presents a theo. retical framework to harmonize and link micro and macro compensation for natural resources. At present, we should seek the new approach and method to manage natural resources, so can we realize the capitalization managemen focusing on the vahte management for natural resources.     

Time to Keep Fit!

At 7 o'clock at night,Adeline Yue,who works at a foreign company in China, called it a day,packed up her bags and walked to a nearby fitness club to do her daily workout.Dancing with the music,Yue eased away the 10 hours of tired- ness and pressure of work,sweating and panting."I really enjoy coming here,to completely relax myself,and at the same time,work on a healthy body,"she said as she ran on the treadmill.     

广东本地服装品牌的市场培育

本地原创品牌的发展塑造需要坚持,也需要本地市场的支持。品牌经营者必须充分了解市场需求,有针对性地进行市场培育,同时结合自身条件进行品牌营销,才能在市场上取胜。文章基于服装品牌消费者层次分析,提出以差异性的品牌推广方式来培育忠诚顾客的若干策略,从而提升原创品牌的市场竞争力。     

大贤山织女洞

大贤山织女洞位于沂源县燕崖乡大贤山山腰,洞悬在半山悬崖上,后人在洞口补加了砖石房顶和券门,将天然洞口改装成了一座庙宇的样子.于是,织女洞遂成为当地重要的民间信仰崇拜场所,吸引了众多善男信女们前来烧香许愿,乞求安康.因为有了织女洞,所以,和牛郎织女故事相关联的一些环境地名也围绕着大贤山不断丰富起来:山脚下的河流被称为阻隔牛郎织女的银河,隔河相望的村落被认定为牛郎的家乡,织女洞南侧的泉水被命名为"天孙泉"等等.大贤山一时成为牛郎织女故事的核心区.沂源也因此而成为中国北方牛郎织女传说的中心.