知识经济de统计核算

美国从１９９１年３月以低通胀、低失业并携２．５％的增长速度实现连续适度的经济增长。１９９６年１２月美国《商业周刊》撰文称美国已出现"新经济"。１９９７年２月美国总统克林顿在公开演讲中指出：新经济就是知识经济。美国以举世瞩目的成就率先跨入知识经济时代。"...     

日本小公司de经营之道

研究日本经济成功之道,人们往往很容易把成就归功于索尼、松下、东芝、丰田这些庞大的集团公司。然而,这些庞大的集团公司仅仅代表着日本工业冰山的山顶、日本成为一个经济超级大国,主要是中、小型公司努力的结果。日本的企业95％都是小公司,其注册资本少于5000万元,雇员不足300人。然而,这些小公司却雇拥了日本工业总劳动力的70％,创造工业总产值的60％;为社会提供工业产品总量的50％。20世纪50年代是日本小公司的全盛时期,那时小公司经营着工业产品总量的60％。60年代下降到48％,以后有轻微的上升,石油危机时期再     

成本会计de发展趋势及对策

随着市场竞争日趋激烈,新技术、新工艺不断涌现,管理理论与方法也在不断创新,大大促进了成本会计学科的发展并丰富了其内容。 一、管理理论与方法的创新对成本会计的影响 适时制。要求企业生产经营管理各环节紧密协调配合,原材料、零部队、产成品保质、保量并适时地送到后一加工(或销售)环节,尽可能实现“零存货”,以降低存货成本。     

The Marshall-Olkin Fréchet Distribution

We introduce a new distribution, namely Marshall–Olkin Fréchet distribution. The probability density and hazard rate functions are derived and their shape properties are considered. Expressions for the nth moments are given. Various results with respect to quantiles, Rényi entropy and order statistics are obtained. The unknown parameters of the new distribution are estimated using the maximum likelihood estimation method adopting three different iterative procedures. The model is applied on a real data set on survival times.

[Supplementary materials are available for this article. Go to the publisher's online edition of Communications in Statistics—Theory and Methods for the following free supplemental resource: A file that will allow the random variables from MOF distribution to be generated.]     

Tempered Mittag-Leffler Lévy processes

In this article, we introduce tempered Mittag-Leffler Lévy processes (TMLLP). TMLLP is represented as tempered stable subordinator delayed by a gamma process. Its probability density function and Lévy density are obtained in terms of infinite series and Mittag-Leffler function, respectively. Asymptotic forms of the tails and moments are given. A step-by-step procedure of the parameters estimation and simulation of sample paths is given. We also provide main results available for Mittag-Leffler Lévy processes (MLLP) and some extensions which are not available in a collective way in a single article. Our results generalize and complement the results available on Mittag-Leffler distribution and MLLP in several directions. Further, the asymptotic forms of the moments of the first-exit times of the TMLLP are also discussed.     

乡镇统计站de生存状态不容乐观

乡江统计站自1986年推广普及从来，对搞好农村基层统计工作发挥了重要作用。如今十平已经过去，乡镇统计站面临特趋产规范、伍涎欲展的历史价投，诚而从）苏省启东市调了解的有关情况看，少镇伤统计站的生存状之于容乐观，值状告人处、周敦的危机届面，这不止不引发我中从平农村纺计工作者深深的忧思。其一，机构应设、毛存实上。》社统计站和房时，由县统计后牵头，给各》江发7牌子、公本，辽立起7乡社统计站网络。但在夕江机构改革过程中，名京市大乡及》江专职把阿的统计员被合并入财经办公室，原子1996旱6月各乡红新q配的一毛统计员也已…     

谈谈抽样调查中de按比例抽样

对于抽样调查，人们往往有这样一种直觉：即应按照比例对大容量的总体多选样本单位，对小容量的总体少选样本单位，这种认识是否全面，它在什么条件下才是正确的以及为什么在这一定的条件下才正确呢？本文就这些问题谈谈几点看法：一、简单纯随机抽样中按固定的抽样比来进行抽样不可取我们考察一下测定标志平均数的必要抽样单位数：1、重复抽样中抽样平均误差厂子一7二卜为总体标准差）所以，抽样极限误差即从上式我们可看出，在给定概率度t和4的情况下，若总体方差aZ大，则抽取的样本容量。；就应多一些；反之，若总体方差。‘小，则抽取…     

对改革企业统计分析工作de探讨

一、当前企业统计分析工作的主要特点 第一,就分析内容而言。在市场经济条件下,企业要在激烈的市场竞争中取胜,不仅要有数量的要求,更要注重产品的质量和低廉的产品价格。这与过去企业统计分析以生产成果为中心是完全不同的,其内容要求既要分析生产成果,又要分析生产条件、技术进步、产品销售、财务成本,也就是说,要对企业产供销、人财物进行分析,重点是要求企业的统计分析必须针对企业经济运行的全过程进行全面的综合分析。     

南京地区上市公司经营业绩de综合评价

本文所讨论的南京地区上市公司,是指在我国证券市场上发行Ａ股的南京及邻近地区的１５家上市公司,文中所进行的上市公司业绩水平的综合评价与分析,依据的数据和资料来源于上海、深圳两地股票市场上市公司的１９９８年度报告资料。一、南京地区上市公司的概况在南京地区的１５家上市公司中,化工类上市公司最多,共有６家,占４０％,体现了这一地区的工业布局特点,具体的有化工原料及化工制品行业的宁天龙和江苏索普,化纤行业的仪征化纤和南京化纤、石油化工行业的扬子石化和塑料制品行业的南京中达。其他上市公司则分布于电子及家电行…     

关于“地下经济”核算de探讨

随着我国经济改革的深入发展,地下经济在国民经济中的成分已在逐渐上升,对国民经济的影响也将逐渐扩大。虽然近几年我国一些经济和统计工作者已经开始涉足于这一领域,但还未形成一套完整的理论,地下经济核算领域尚属空白。 地下经济又称非正规经济、隐性经济。它是相对于     

谈工业发展速度计算方法de改革

反映工业发展速度的计算方法主要有三种,一是建国后一直沿用直今的不变价格法;二是1992年开展国内生产总值核算后采用的价格指数法;三是1997年底开始试算的生产指数法。90年代中期国家统计局在部分省市进行了关于发展速度计算方法的改革试点,结果表明:不变价格必须取消,生产指数法不适合市县一级的核算,而价格指数缩减法比较适用实际情况。（一）不变价格已不在适用市场经济发展要求。建国以后国家定期统一编制工业产品不变价格目录用来计算     

The Consistency and Robustness of Modified Cramér–Von Mises and Kolmogorov–Cramér Estimators

This article focuses on the minimum distance estimators under two newly introduced modifications of Cramér–von Mises distance. The generalized power form of Cramér–von Mises distance is defined together with the so-called Kolmogorov–Cramér distance which includes both standard Kolmogorov and Cramér–von Mises distances as limiting special cases. We prove the consistency of Kolmogorov-Cramér estimators in the (expected) L₁-norm by direct technique employing domination relations between statistical distances. In our numerical simulation we illustrate the quality of consistency property for sample sizes of the most practical range from n = 10 to n = 500. We study dependence of consistency in L₁-norm on ?-contamination neighborhood of the true model and further the robustness of these two newly defined estimators for normal families and contaminated samples. Numerical simulations are used to compare statistical properties of the minimum Kolmogorov–Cramér, generalized Cramér–von Mises, standard Kolmogorov, and Cramér–von Mises distance estimators of the normal family scale parameter. We deal with the corresponding order of consistency and robustness. The resulting graphs are presented and discussed for the cases of the contaminated and uncontaminated pseudo-random samples.     

Some Results for Beta Fréchet Distribution

Nadarajah and Gupta (2004 Nadarajah , S. , Gupta , A. K. ( 2004 ). The beta Fréchet distribution . Far East J. Theoret. Statist. 14 : 15 – 24 . [Google Scholar]) introduced the beta Fréchet (BF) distribution, which is a generalization of the exponentiated Fréchet (EF) and Fréchet distributions, and obtained the probability density and cumulative distribution functions. However, they did not investigate the moments and the order statistics. In this article, the BF density function and the density function of the order statistics are expressed as linear combinations of Fréchet density functions. This is important to obtain some mathematical properties of the BF distribution in terms of the corresponding properties of the Fréchet distribution. We derive explicit expansions for the ordinary moments and L-moments and obtain the order statistics and their moments. We also discuss maximum likelihood estimation and calculate the information matrix which was not given in the literature. The information matrix is numerically determined. The usefulness of the BF distribution is illustrated through two applications to real data sets.     

Tables of the cramér-von mises distributions

Tables of the one- and two-sample unweighted Cramer-von Mises statistics are given, and compared with the limiting distribution. The two-sample statistic may be useful in (for example) clinical trials when a proportional hazards assumption (which leads to the use of the log-rank test) is unjustified: see, for example, Schumacher (1984). It is often possible to stop clinical trials early if the Cramer-von Mises test (rather than say, the log-rank test) is employed.     

基层统计机构de现状、原因与对策

《中华人民共和国统计法》第十六条规定：“县级以上地方各级人民政府设立独立的统计机构，负责组织领导和协调本行政区域内的统计工作”。然而，在刚实施的全省县级机关机构改革中，虽经省统计局领导全力协调与督查，但机构改革的结果对统计队伍建设来说仍然不尽人意，这对新世纪的统计事业必将产生一定的影响。一、县级统计机构改革后的现状据最新资料表明，全省县级统计局在机构改革后保留单设的仅35个，占39.8％；与其他部门合署办公53个，占60.2％。在这次机构改革中，全省除杭州市所属县级统计机构保留单设外，其他地区均受到不同程度…