Research on the Present Situation and Countermeasure of the Development of Chinese Architectural Industry

Along with the development of Chinese social economy and the innovation of government policy, Chinese Architectural Industry is playing a more and more vital role in the entire national economy. This paper first abstracts the connotation and basic characteristic of the Architectural Industry, then discusses the present situation of the development of Chinese Architectural Industry and carries on the analysis on the entire construction industry. Finally discusses the development tendency of Chinese architectural industry, and put forward the corresponding policy proposals to its developmental strategy.     

Generalized piecewise linear histograms

We extend the concept of piecewise linear histogram introduced recently by Beirlant, Berlinet and Györfi. The disadvantage of that histogram is that in many models it takes on negative values with probability close to 1. We show that for a wide set of models, the extended class of estimates contains a bona fide density with probability tending to 1 as the sample size n increases to infinity. The mean integrated absolute error in the extended class of estimators decreases with the same rate n^–2/5 as in the original narrower class.     

The adequacy of asymptotic approximations in the near-integrated autoregressive model with dependent errors

We consider the normalized least squares estimator of the parameter in a nearly integrated first-order autoregressive model with dependent errors. In a first step we consider its asymptotic distribution as well as asymptotic expansion up to order O_p(T⁻¹). We derive a limiting moment generating function which enables us to calculate various distributional quantities by numerical integration. A simulation study is performed to assess the adequacy of the asymptotic distribution when the errors are correlated. We focus our attention on two leading cases: MA(1) errors and AR(1) errors. The asymptotic approximations are shown to be inadequate as the MA root gets close to −1 and as the AR root approaches either −1 or 1. Our theoretical analysis helps to explain and understand the simulation results of Schwert (1989) and DeJong, Nankervis, Savin, and Whiteman (1992) concerning the size and power of Phillips and Perron's (1988) unit root test. A companion paper, Nabeya and Perron (1994), presents alternative asymptotic frameworks in the cases where the usual asymptotic distribution fails to provide an adequate approximation to the finite-sample distribution.     

中国城市居住分异研究

对城市居住空间的研究是城市社会学的一个重要内容.自建国以来,我国城市居住空间经历了逐渐分异的历史变迁过程.如果不对居住分异加以适当的调控就会出现居住空间极化与隔离问题.城市居住空间极化是社会不公正在居住空间上的表现.城市政治经济转变与城市规划、土地制度改革与房地产开发、住房制度改革与住房商品化是转型过程中城市居住分异形成的三个主要原因.扩大中等收入群体规模、增加社会自组织力量、制定公正的社会政策是优化城市居住空间结构的有效途径.     

城市广场地下空间的开发利用模式

讨论了城市中心广场、站前广场、城市轴线节点处广场和居住区内部广场的开发利用模式 ,分析了开发利用地下空间的可行性和意义所在     

An improved empirical Bayes test for positive exponential families

We exhibit an empirical Bayes test δ^* _n for a decision problem using a linear error loss in a class of positive exponential families. This empirical Bayes test δ^* _n possesses the asymptotic optimality, and its associated regret converges to zero with rate n ⁻¹(ln n )⁶ This rate of convergence improves the previous results in the literature in the sense that a faster rate of convergence is achieved under much weaker conditions. Examples are presented to illustrate the performance of the empirical Bayes test δ^* _n     

外商投资、产业结构与城乡收入差距——基于状态空间模型分析

基于中国1984-2015年外商投资、产业结构和城乡收入差距的时间序列数据，采用时变参数状态空间模型，运用KALMAN滤波算法考察产业结构和外商投资对中国城乡收入差距随时间变化的动态影响。研究发现：外商投资、产业结构与城乡收入差距间存在长期协整关系，外商投资对城乡收入差距的影响较小，并不是影响我国城乡收入差距的主要因素，外商投资对缩小城乡收入持续有着积极的影响；第二产业比重、产业结构高级化水平与城乡收入差距始终正相关，第二产业比重增加与产业结构水平高级化都进一步加剧了城乡收入差距。建议进一步利用外商投资发展我国现代化农业，积极发展农业产业化发展，并积极吸收农村剩余劳动力投入第三产业发展，同时提高农村务工人员的技能与素质，重视农村务工人员的专业技能培训，使其可以从事信息咨询、商贸物流等相对高收入的工作；制定政策吸引高素质人才留在农村，提高我国农业现代化生产水平，切实提高农村居民的收入水平，实现持续缩小城乡收入差距。     

基于斑-廊-基-缘的乡村旅游空间规划理论探讨

乡村旅游空间要素可划分为斑、廊、基、缘四大部分.旅游的本质是旅游者通过对景点斑的体验获得心理慰藉;风景交通廊是架构旅游者和景点斑的通道,并且也承担了部分景观功能;旅游配套设施、基础设施和乡村社会环境构成了乡村旅游的宏大环境基质;区域旅游协作要求乡村旅游空间具有开放性特征,与周边缘的关系也就成为乡村旅游空间研究的重要内容.旅游流的引入使得静止的乡村旅游空间格局具有动态变化性,自然力和竞争力作用使得乡村旅游空间格局变动由无序走向有序.     

对企业集群整合营销的几点思考

由企业集群构成的区位空间不仅仅是一个区域概念,也是一个巨大的“产品”。像产品和人一样,地理位置或某一空间区域也可以视为产品。在新技术和全球经济一体化的推动下,人类在空间的不断流动、交通和信息的发达以及经济的全球化,促使区位市场营销趋势的增长。我国企业集群劳动密集型的特点,决定了在高新技术方面取得重大突破的难度。从整合营销的角度来提升企业集群的能力,却是发展企业集群的一条具有现实而长远意义的捷径。     

从会计要素看我国会计准则的国际趋同

2006年新颁企业会计准则,体现了我国会计准则国际趋同的特点.会计要素是会计体系的核心内容, 通过我国会计新旧会计准则的比较以及国内外会计准则的比较,主要从会计要素的分类、定义以及确认三大方面揭示了我国会计准则的国际趋同.