中国农业现代化发展水平时空格局及趋同演变

采用熵权TOPSIS法对我国2001—2012年31省份的农业现代化发展水平进行综合评价,进而采用GIS技术对我国农业现代化发展水平进行空间格局分析,并运用Markov链方法对我国农业现代化水平的趋同演变进行了实证研究。研究发现：（1）整体上我国农业现代化水平从东部到中部再到西部梯度降低,且存在显著的空间自相关,发展水平相似的地区呈现集聚分布;（2）农业现代化水平还表现出一定的俱乐部趋同特征,随着时间积累,各俱乐部的趋同迹象有所缓解,但一直都存在着“高水平垄断”现象;（3）空间因素对地区农业现代化的发展具有积极影响,高水平的邻居更能带动本地区农业现代化水平的提高,研究还发现在考察期内这种带动作用需要3年的时间积累才能体现。     

多主体权责分配与大学科研评价的科学性

针对权责界限不确定的多主体共享事物权责分配的科学性问题进行研究,提出多主体共享权责分配方式的封闭性、序列性、均称性和关联性等概念,将同时具备一致封闭性、一致序列性、一致均称性和一致关联性作为完备型权责分配方式的条件,并以完备性作为权责界限不确定的多主体权责分配的科学性的标准.通过一系列数学论证,给出完备型权责分配方式的基本性质,得出由黄金分割法诱导出来的多主体共享事物权责的“黄金分配法”的完备性,既得到了一般多主体共享权责问题的完备型分配方式的存在性结论,也证明了武书连在《2010中国大学评价》中关于大学科研获奖成果评价计分方法的科学性.     

中国区域FDI技术效率及其差异性

在对传统的FDI绩效指标进行分析的基础上,文章构建了能够同时反映FDI对东道国经济发展和环境污染等双重影响的FDI技术效率指标,并利用中国2000-2010年的省级数据进行分析,发现:中国和分东中西部地区的FDI技术效率在样本期内有明显的改善,并且环境约束下的FDI技术效率显著高于无环境约束下的效率值;采用泰尔系数的进一步分析发现中国的FDI技术效率存在一定的区域差异,并且其差距从2000年到2010年逐年下降,从而说明中国地区FDI技术效率存在收敛现象.     

Complete consistency for the estimator of nonparametric regression models based on extended negatively dependent errors

In this paper, we provide some exponential inequalities for extended negatively dependent (END) random variables. By using these exponential inequalities and the truncated method, we investigate the complete consistency for the estimator of nonparametric regression model based on END errors. As an application, the complete consistency for the nearest neighbour estimator is obtained.     

Approximating moments of continuous functions of random variables using Bernstein polynomials

Bernstein polynomials have many interesting properties. In statistics, they were mainly used to estimate density functions and regression relationships. The main objective of this paper is to promote further use of Bernstein polynomials in statistics. This includes (1) providing a high-level approximation of the moments of a continuous function $g\left(X\right)$ of a random variable $X$, and (2) proving Jensen’s inequality concerning a convex function without requiring second differentiability of the function. The approximation in (1) is demonstrated to be quite superior to the delta method, which is used to approximate the variance of $g\left(X\right)$ with the added assumption of differentiability of the function. Two numerical examples are given to illustrate the application of the proposed methodology in (1).     

三晋钹铙打造了孙悟空--关于《西游记》的早期形态兼答曹炳建、杨俊先生

队戏《唐僧西天取经》是《西游记》演变过程中失落已久的一个重要环节。这一环节表明了《西游记》的取经故事在宋元时期曾经依赖于三晋地区的戏剧形式而迅速生长增殖。它的重新发现,启示我们还有更早的原生取经故事,也使我们注意到杂剧《西游记》对佛教的孙悟空取经猴与道教的闹天宫的齐天大圣猴的文化整合,使得我们可以重新厘定《西游记》成书过程的各个环节。     

Macroeconomic asymmetry in the Eurozone before and after the Global Financial Crisis: An appraisal of the role of the ECB

The launch of the euro in 1999 was assumed to enhance macroeconomic convergence among EMU economies. We test this hypothesis from a comparative perspective, by calculating different indices to measure the degree of macroeconomic dispersion within the Eurozone, the UK and the USA (1999–2019). We use common factor models to produce a single index for each monetary area out of different measures of dispersion. These indices can be used to inform on the degree of optimality of a monetary area. Our results show that macroeconomic dispersion in the Eurozone increased notably even before 2007 and it took significantly longer to return to pre-crisis levels, as compared to the UK and the USA. The paper shows the critical role played by the ECB’s asset purchases programmes in reducing macroeconomic divergences among EMU member states since 2015.     

媒介融合概念的解析与层次

媒介融合已成为学术热点,但学界对于什么是媒介融合、媒介融合的层次划分等基本问题依然缺乏足够讨论。通过梳理国内外学界有关媒介融合的研究文献发现,虽然融合一词是这一概念的核心,但媒介融合概念的界定却在很大程度上取决于媒介一词,并且至少可以从技术、经济、组织以及制度四个维度来分析和理解其内涵和层次;同时,媒介融合不仅是一个涉及技术、经济、组织以及制度等多个构面和层次的概念,而且是人类社会发展进程中一个全新"技术-经济范式"的内核。     

Two-person sequential bargaining behavior with exogenous breakdown

We examine bargaining behavior in a noncooperative game in which players alternate in making and responding to proposals over the division of a given surplus. Although the number of bargaining periods is unlimited and time is not discounted, the bargaining is subject to exogenous breakdown at each period with a fixed probability which is common knowledge. We manipulate three probabilities of break-down in a between-subjects design that allows comparison with previous studies of two-person bargaining with time discounting. Assuming that subjects maximize expected utility, and this utility is measured by monetary payoffs, our results reject both the subgame perfect equilibrium and equal split solutions. Data analyses reveal that a substantial percentage of subjects behave adaptively in that they systematically search for the highest acceptable demands.     

基于产业融合的历史文化街区型商业区发展规划———以安阳市文峰特色商业区为例

以安阳文峰特色商业区为例,提出了历史文化街区型特色商业区的发展思路与理念,明确了产业发展方向与重点,从而构建了产业发展的基本路径与框架.