Agility index in the supply chain

To achieve a competitive edge in the rapidly changing business environment, companies must align with suppliers and customers to streamline operations, as well as working together to achieve a level of agility beyond individual companies. Consequently, agile supply chains are the dominant competitive vehicles. Embracing agile supply chain requires asking some important questions, namely: what exactly is agility and how can it be measured? Moreover, how can agility be effectively achieved and enhanced? Due to the ambiguity of agility assessment, most measures are described subjectively using linguistic terms. Thus, this study develops a fuzzy agility index (FAI) based on agility providers using fuzzy logic. The FAI comprises attribute’ ratings and corresponding weights, and is aggregated by a fuzzy weighted average. To illustrate the efficacy of the method, this study also evaluates the supply chain agility of a Taiwanese company. This evaluation demonstrates that the method can provide analysts with more informative and reliable information for decision.     

乌克兰危机与中国的选择

乌克兰危机的爆发,有极其复杂的国内因素的原因。同时,它更是以美国为首的西方和俄罗斯在地缘政治上博弈的结果。乌克兰危机对国际形势的影响虽然不如舆论界预期那么大,但它可能会影响美国＂重返亚太＂战略的部署和进度。中国应当冷静观察,沉着应对。在始终坚持＂以经济建设为中心＂的基础上,坚定既有原则立场,强调尊重独立国家的主权和领土完整,坚决反对干涉内政,同时也要积极有所作为,为政治解决乌克兰危机,发挥独特的大国作用。     

建设生态文明的实践与探索——林业生态建设30年回眸

改革开放30年来,林业生态建设以生态文明为目标,坚持走建设生态、改善生态之路,在生态文明建设上进行了不懈的探索和实践,取得了令人瞩目的成绩。三北防护林建设工程为生态文明建设首开先河;开展全民义务植树运动谱写了生态文明建设新篇章;造林灭荒行动掀起生态文明建设新高潮;六大林业重点工程成为新世纪生态文明建设新壮举。中国可持续发展林业战略研究为生态文明建设提供了新理论,其核心是生态建设、生态安全、生态文明。发展现代林业掀起生态文明建设新高潮,推进生态文明建设走上新的里程。     

Diffusion of mobile telephony: An empirical study in Taiwan

Mobile telephony penetration is a major indicator of mobile telephony diffusion. Taiwan had a mobile telephony penetration of 108% in 2002, ranking first in the world. This study analyzes this accelerated diffusion in terms of growth model and determinants of the diffusion rate. To eliminate the inherent uncertainty associated with choosing the optimal growth model, this study compares the performance of three conventional models, namely Gompertz, Logistic and Bass, to identify the most appropriate model, and to distinguish the forces driving the diffusion rate. Empirical results indicate that the most appropriate model is the Logistic model. Network externalities, which this study shows to be the same as the imitation effect in the Bass model, explain the superiority of the Logistic model. Moreover, market competition, which markedly reduces service prices, is identified as a primary driver of the diffusion rate of mobile telephony in Taiwan. Economic conditions, technological innovation and number of operators are insignificant factors. Finally, mobile telephony is a substitute for fixed-line telephony in Taiwan.     

商业银行经营业绩真实性的分析与建议

创建金融安全区，防范金融风险的一项重要工作就是对商业银行经营业绩的真实性检查。文章分析了影响商业银行经营业绩真实性的主要因素，并提出了提高商业银行经营业绩真实性的建议。     

A Likelihood Ratio Test of Price Volatilities: Comparing Stock Index Spot and Futures

This paper uses three methods to estimate the price volatility of two stock market indexes and their corresponding futures contracts. The classic variance measure of volatility is supplemented with two newer measures, derived from the Garman-Klass and Ball-Torous estimators. A likelihood ratio test is used to compare the classic variance measure of price volatilities of two stock market indexes and their corresponding futures contracts during the bull market of the 1980s. The stock market volatilities of the Standard & Poor's 500 (S&P 500) and New York Stock Exchange (NYSE) indexes were found to be significantly lower than their respective futures price volatilities. Since information may flow faster in the futures markets than in the corresponding stock market, our results support Ross's information-volatility hypothesis. It was also noted that the NYSE spot volatility was lower than the S&P 500 spot volatility. If the rate of information flow and firm size are positively related, then the lower NYSE spot volatility is explained by the size effect. The futures price volatilities for the two indexes were insignificantly different from each other. With stock index spot-futures price correlations approaching unity, one implication of our results for index futures activity is that smaller positions in futures contracts may suffice to achieve hedging or arbitrage goals.     

张有为：设计通天之路

淘金户外广告，张有为有他独特的方式。创意的眼光是他的制胜法宝，在空港这一块户外广告的兵家必争之地，张有为在貌似饱和的局面下找到了突口，安身立命，出奇制胜！[编者按]     

纺织品pH值快速测量方法的研究

[目的]为实验室和现场快速检测找到有效手段.[方法]通过对各类纺织品表面吸附功能的比较研究,对棉斜纹布、棉绒布、丝绸及涂层布等纺织面料进行测试研究,经过萃取时间、萃取水量、测试稳定性、辅助稳定性、辅助装置的试验,确定了用平头电极直接测试纺织品表面pH的方法.[结果]该方法具有快速准确、不破坏样品的特点,测试所需时间比现行的标准方法快16倍.[结论]本方法适用于实验室和生产现场的快速检测,同时也为在检验现场进行快速筛选检验提供了一项有效的测量手段.