中国:深化事业单位改革,改善公共服务提供

改善事业单位的绩效,对于提高公共服务的质量,适应中国所确定的建设小康社会的目标,落实“以人为本”的发展观,具有非常关键的意义。虽然过去以“推向市场”为目标的改革取得了很大成就,但同时也在公共服务领域引入了一些不合意的激励机制。为了改善公共服务,中国需要进行全面、协调的事业单位改革,其中包括重新界定政府的角色和从商业性活动中退出,改革公共财政以便更好地为公共服务付费,允许非国有部门提供更多的公共产品,加强公共部门内部的问责机制,建立绩效管理和监督体制。由于事业单位的复杂性和多样化特征,改革的设计与实施必须充分考虑不同部门和不同地区的具体环境以及对员工的影响。因此,有必要在中央层面建立一个跨部门的改革领导小组对事业单位改革进行指导和监督。     

中国人口城镇化的省级行政单元差异分析

基于周一星修正的1982—2000年城镇化数据和2005年全国1%人口抽样调查数据,本文依据所构建的人口城镇化贡献模型,以省级行政单元为基本研究对象,考察了1982—2005年研究期内不同时段省级行政单元的人口城镇化差异变动情况。主要从城镇人口的相对增长指数和城镇人口增长的贡献率这两个方面来分析各省级行政单元的城镇化差异,按时段将之落实到地图上,并将所有的省级行政单元划分成三个类型,然后将其对应于人口城镇化进程的四个阶段。最后,简单地说明了各省级行政单元在人口城镇化进程中四种类型的转换过程或阶段转变。     

中南五省流通业的发展和经济增长相关性分析——基于面板协整、因果检验方法

本文利用面板协整检验、格兰杰因果检验模型,对中南五省的国内生产总值、批发零售和餐饮业之间的协整、格兰杰因果关系进行检验,研究结果表明：国内生产总值和批发零售、国内生产总值和餐饮业之间存在长期稳定的协整关系;各省的餐饮业、批发零售业对GDP的增长存在显著的促进作用,并且促进程度在各省之间存在明显的差异,其中沿海两省远远高于内地三省;地理位置的空间差异对餐饮业、批发零售业对GDP的长期影响程度存在明显性影响。中南五省整体的面板协整方程估计结果同样表明,批发零售业和餐饮业的发展,促进了各省GDP的增长。     

Asymmetric Behaviour of Spanish Regional House Prices

In connection with the housing market, which is presently raising a great deal of concern among the general public, this paper investigates regional housing prices in Spain using variable co-integration techniques. It analyzes the asymmetric behavior in real house prices among the Spanish regions focusing on the study of the long-term relationships over time. This paper raises an important question of the national averages masking important regional asymmetries. Results indicate evidence of co-integration, which suggests a broad grouping of regions based on physical proximity or similar economic characteristics.

The Limit Distribution of the Bootstrap for the Unit Root Test Statistic when the Residuals are Dependent

In this article, the unit root test for the AR(1) model with dependent residuals is considered. We adopt a bootstrap procedure to bootstrap the residuals with bootstrap sample size m less than the size n of the original sample. Under the assumptions that m → ∞ and m/n → 0, the convergence in probability of the bootstrap distribution function is established. Research supported by National Natural Science Foundation of China (No. 10471126)     

工具变量法综列单位根检验的有偏性及其修正

Chang（2002）基于非线性工具变量估计，提出了对截面相关综列数据进行单位根检验的SN检验，在综列数据生成过程不舍飘移和时间趋势时具有良好的表现。但我们的研究表明，在非平稳综列数据含有确定性趋势时，SN检验是有偏的，不再服从标准正态的渐近分布，而需要进行修正。本文基于蒙特卡罗仿真试验提出了一种简便的修正方法，修正后的SN检验统计量渐近分布为标准正态分布。仿真结果表明，修正后的SN检验具有更好的有限样本性质和较高的检验势。     

Cross sectional and panel estimation of convergence

Cross sectional estimation of convergence regressions is known to be hazardous if there is convergence towards heterogeneous steady state values. In this paper, Monte Carlo methods are used to investigate the implications of this parameter heterogeneity problem. The cross sectional and pooled OLS estimators are compared with a panel estimator which is unaffected by heterogeneity. If there is heterogeneity, the latter outperforms both the unconditional and conditional cross sectional and pooled OLS estimators.     

Does a non-linear mean reverting process characterize real GDP movements?

This paper uses non-linear models to investigate non-stationarity of real GDP per capita for seven OECD countries over the period 1900–2000. Unit root tests based on non-linear models are more powerful than traditional ADF statistics in rejecting the null unit root hypothesis. Empirical results show that, contrary to what the linear ADF statistics suggest, stationarity characterizes five out of the seven countries. This finding stands at variance with other recent studies which conclude that movements in real GDP per capita can be characterized as a non-stationary process.

浅析AutoCAD工程制图中的合理设置比例问题

在工程制图中，合理设置比例是一个关键问题。如设置不当会给你的绘图带来许多问题和麻烦。本文重点介绍图形单位、绘图比例、屏幕缩放比例、出图比例的概念、相互关系以及如何设置。