电子标签方兴未艾我国市场及时应对

电子标签通过射频识别系统实现自动识别.将商品信息存储在芯片上,附着在待识别物体表面,当商品进入阅读器的读取范围后,阅读器通过发射信号寻找它们.当信号激活电子标签时,后者会立刻反馈携带有标签信息的反射信号,实现无接触读取并识别电子标签中所保存的电子数据,达到自动识别物体的目的.     

在虚拟的刀光剑影中游走

阴霾的天气容易让人想不开，城市的纷乱，多少有些无奈。而有些人可以抛弃环境的影响，逃遁或者投入到美妙的图景中。     

导游词创作中应遵循的四项基本原则

随着导游“资格证书”及“等级证书”制度的实施,广大导游员只有认真钻研业务知识才能满足旅游大众对导游讲解水平日益提高的要求。因而导游词的创作正逐渐受到旅行社及广大导游员的重视。一篇正确、清晰、生动、通俗的导游词,经过导游员的传播,可以使游客感到旅游生活妙趣横生,对旅游目的地留下经久难忘的印象。     

我的经济理论研究简要回顾

文章简要回顾作者自党的十一届三中全会以来在经济理论研究中的一些观点,涉及生产力、生产关系、私营经济的发展、经济体制改革、市场调节、社会主义市场经济的内涵、国有企业改革、经济增长与发展、劳动价值理论等不同内容,以期与广大经济理论研究者分享。     

六西格玛呼唤管理“软”环境

六西格玛管理在GE的成功运用。受到学术界与企业界的广泛关注，被喻为韦尔奇的“制胜法宝”。我国许多企业也争相研究这一管理模式，但是六西格玛不仅仅是一个管理工具，更重要的是一种管理理念，中国企业如果要推行六西格玛管理，需要首先塑造与之相适应的“软环境”。     

拖拉机总装流水线的时间平衡

本文联系拖拉机总装配的实际,阐述了装配线时间平衡的做法及其所可取得的显著的经济效益。     

科学发展观视野中的生态旅游资源开发研究——以大连为例

目前，生态旅游越来越受到各国的普遍关注，并正在迅速发展成为一种新兴的旅游形式。我国的生态旅游在近十年的发展也十分迅速，大连的生态旅游业也呈现出良好的发展态势。本论文从开发生态旅游资源的原则谈起，在全面列举大连生态旅游资源现状的基础上，从科学发展观发展的视角，提出大连开发生态旅游资源的策略选择，并对大连生态旅游产品的设计进行了探讨。     

The approach to transforming the traditional agricultural economy: a research on the multiple paths of poverty alleviation and transformation in rural China

Transforming a traditional agricultural economy into a modern economy is one of the main themes in economic development. Through theoretical and empirical analysis, this paper finds out that the key to transformation is to raise the economic value of people, to improve human capital investment and to match the stocks of physical and human capital. China’s rural economy is on the edge of economic take-off, and different zones may pursue different paths for transformation. The source of rural poverty is not the scarcity of income or consumption, but the deficiency of education, social security, medical care and economic opportunity, which we define as “capability poverty”. __________ Translated from The Journal of World Economy (世界经济), 2005,(2) (in Chinese)     

对我国城市房屋拆迁中存在问题的法律思考

城市房屋拆迁,既关系国家、开发建设单位、被拆迁单位及亿万城镇居民的利益,又关系到城市规划的具体落实,这是一个敏感而又普遍的社会问题,已成为近几年全社会高度关注的社会问题之一.基于城市房屋拆迁所引发的拆迁人与被拆迁人利益冲突问题比较严重,引发矛盾冲突的根本原因是我国现行的拆迁法律制度和政策存在问题,本文着重分析了我国城市房屋拆迁法律制度和政策存在的几个问题,并从学理上提出解决矛盾的建议.     

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