Impact analysis of September 11 on air travel demand in the USA

This study uses an intervention model to look at the impact of the September 11, 2001 terrorist attack on air transport passenger demand in the US. The result showed that both domestic and international air traffic was significantly impacted for 1 and 2 months, respectively. The impact pattern was thus abrupt and temporary, instead of gradual and permanent. The approach also provides better forecasts than the seasonal ARIMA benchmark.     

《企业财务通则》解读之五 第五章 成本控制

<正>《企业财务通则》(以下简称《通则》)第五章主要规范企业的成本控制。所谓成本控制是指企业按照国家有关财务制度的要求以及自身的财务目标,借助科学的方法,保障必须的支出,控制不合理的支出,将各项成本掌握在一定的范围内。企业提高经济效益的     

China＇s Macroeconomic Development： Stages and Nonlinear Convergence

I. Introduction Since the second half of the 1990s, the Chinese economy has witnessed some unprecedented changes: a sharp increase in urban unemployment, stagnation of labor transfer from agriculture to non-agricultural sectors and serious deflation. All these changes indicate a significant departure from the previous development trajectory: sustained full employment in urban areas, rapid labor transfer from agriculture to non-agricultural sectors and persistent and significant inflation. Beg…     

《制度儒学》序

儒学不能仅仅存在于大学讲坛和书斋之上,不能止于“作为哲学的儒学”,而必须结合社会生活的实践,同时发展“作为文化的儒学”的方面,使儒学深入国民教育和人生践履。这其实是一切关心儒学及其现代命运的人士的共识。     

培育和发展我国行业协会的对策思考

<正> 改革开放以来,大量的非国有经济成分以及民营企业的逐年增加,使中国的经济成分呈多元化。这些以市场为导向的企业成分的增加,激活了市场,促进了经济的发展,成为中国经济的重要组成部分。外商来华投资,面对几十年形成的旧的行政体系行业架构,外商投资游离于旧的行政体系和行业架构之外,无企业可以依托的载体,缺政策信息和政策指导,少联系网络和沟通渠道。市场经济运作中不可代替的润滑剂——行业协会的社会需求凸现出来。加快行业协会的培育和发展显得更加迫切。     

Anticipated foreign military threat, arms accumulation, and the current account in a small open economy

This paper examines the effects of an anticipated foreign military threat on consumption, the home weapons stock, and net foreign asset position in a small open economy. If the utility function is separable between butter and guns, the economy decreases both butter and guns when the news arrives, accumulates foreign assets prior to the foreign threat realization, and increases guns as the foreign threat realizes. If the utility function is nonseparable between butter and guns, the economy may have two dynamic responses. The first is similar to the separable case, except that consumption exhibits a discrete jump when the foreign threat realizes. The second is that the economy increases both butter and guns on impact, decumulates foreign assets prior to the foreign threat implementation, but either increases or decreases guns as the foreign threat realizes.     

基于促进农村消费的城乡双向物流发展策略

农民收入的低水平,持续增收难度大,预期收入不确定和预期支出增加,城乡收入差距扩大,城乡双向物流发展滞后等因素制约了我国农村消费的增长。而城乡双向物流的发展能从增加农民收入,转变消费观念等方面促进农村消费。为此,应发挥政府的引导作用,加快农村基础设施建设,构建城乡一体化物流信息平台,培养农村物流专业人才,培育多元化的农村物流市场经营主体,创新城乡物流对接模式,促进城乡双向物流的发展。     

一种新的基于MR的移动网络越区覆盖判别算法

针对移动网络系统中普遍存在的越区覆盖问题,提出了一种新的低成本的越区覆盖判 别的新算法,从而提高网络的性能指标。该算法通过在Iub接口中实时采集信令MR帧,并对 其MR帧进行同步解析获取其帧结构中的相关数据,在考虑用户切换掉话的多种场景下提出了 基于邻区判别的越区覆盖侦测方案。实验结果显示该方法可以有效解决越区覆盖问题。     

检验检疫技术机构分析研究

通过分析检验检疫技术机构在管理、技术能力和人才队伍等方面的现状,探讨检验检疫技术机构的发展方向,为检验检疫技术机构改革方案的制定提供可靠依据。