江浙新农村信息化建设状况的比较研究

利用第二次农业普查资料,根据发达地区的特点改进已有的农村信息化评价指标体系,主要从农村信息化基础设施与普及应用、农村信息化人才资源等方面进行定量分析,对江浙两省之间以及江浙两省各地区之间农村信息化状况进行了评价和比较研究.江苏省和浙江省都是我国东部沿海发达省份,同属我国长三角区域,在农村信息化建设方面都处在全国前列,但是江浙农村信息化建设模式不同,发展状况也不同,尤其是江浙两省内各地区农村信息化水平存在明显的不平衡.在探讨影响新农村信息化建设的关键因素的基础上,为加快两省新农村信息化建设提出对策建议:加强两省农村信息化人才培育,提高欠发达地区区域经济水平,是当前进一步推动江浙两省以及长三角地区农村信息化平衡、快速、协同发展的关键.特别要指出的是,苏南、浙东北等发达地区的重点是促进农村信息消费增长,而苏北、浙西南等地区的重点是发挥龙头企业信息化应用的带动作用.     

试论由翻译引发的现代标准汉语西化

我国近现代翻译活动对现代汉语标准化的影响主要体现在词汇现代化和语法规定这两个方面,即汉语语法的西化。白话文运动的兴起是现代标准汉语产生和发展的首要推动力,而翻译则被视为一个补充性的机制。     

电视的艺术创造潜力分析

电视具有三大功能:信息传播功能、新闻纪实功能、艺术表现功能。长期以来,电视的信息传播功能和新闻纪实功能得到了理论界和业界的广泛重视,但对电视的艺术表现功能认识曾一度陷入矛盾和怀疑。电视具有形象性的艺术特征,其语言结构、思维方式、独特的时空表现艺术都使电视表现出鲜明的艺术特征和巨大的艺术创造潜力。     

Linear scalar-on-surface random effects regression models

Many research fields increasingly involve analyzing data of a complex structure. Models investigating the dependence of a response on a predictor have moved beyond the ordinary scalar-on-vector regression. We propose a regression model for a scalar response and a surface (or a bivariate function) predictor. The predictor has a random component and the regression model falls in the framework of linear random effects models. We estimate the model parameters via maximizing the log-likelihood with the ECME (Expectation/Conditional Maximization Either) algorithm. We use the approach to analyze a data set where the response is the neuroticism score and the predictor is the resting-state brain function image. In the simulations we tried, the approach has better performance than two other approaches, a functional principal component regression approach and a smooth scalar-on-image regression approach.     

A Factor-Adjusted Multiple Testing Procedure With Application to Mutual Fund Selection

In this article, we propose a factor-adjusted multiple testing (FAT) procedure based on factor-adjusted p-values in a linear factor model involving some observable and unobservable factors, for the purpose of selecting skilled funds in empirical finance. The factor-adjusted p-values were obtained after extracting the latent common factors by the principal component method. Under some mild conditions, the false discovery proportion can be consistently estimated even if the idiosyncratic errors are allowed to be weakly correlated across units. Furthermore, by appropriately setting a sequence of threshold values approaching zero, the proposed FAT procedure enjoys model selection consistency. Extensive simulation studies and a real data analysis for selecting skilled funds in the U.S. financial market are presented to illustrate the practical utility of the proposed method. Supplementary materials for this article are available online.     

The laws of large numbers for Pareto-type random variables with infinite means

In this paper, we consider the laws of large numbers for NSD random variables satisfying Pareto-type distributions with infinite means. Based on the Pareto-Zipf distributions, some weak laws of large numbers for weighted sums of NSD random variables are obtained. Meanwhile, we show that a weak law for Pareto-Zipf distributions cannot be extended to a strong law. Furthermore, based on the two tailed Pareto distribution, a strong law of large numbers for weighed NSD random variables is presented. Our results extend the corresponding earlier ones.     

Policies for Recruiting Talented Professionals from the Diaspora: India and China Compared

Despite the continuous asymmetrical power relations between the Global North and South, the “global race for talent” is no longer a privilege enjoyed only by developed countries. Comparative analysis of policy content and effectiveness has attracted increasing interest. The examination of policy initiatives resulting in return migration of highly‐skilled migrants from the Global North to the Global South, however, remains inadequate. In this article, we provide a comparative analysis of policies targeting high‐level Chinese and Indian professionals including full‐time returnees. Two key differences in policy instruments and outcomes in the two countries are identified and they have implications for migration policies in other countries in the Global South and North.     

REAL EXCHANGE RATE,MONETARY POLICY,AND THE U.S. ECONOMY: EVIDENCE FROM A FAVAR MODEL

This paper examines the effects of exchange rate depreciation to the U.S. economy in a factor‐augmented vector autoregression model using monthly data of 148 variables for the post–Bretton Woods period of 1973–2017. Exchange rate shock is identified to reflect exogenous disturbances to the foreign exchange market, and movements in exchange rate that are not accounted for by changes in the U.S. monetary policy. We find that depreciation is expansionary and inflationary to the broad U.S. economy, the current account improves over time conforming to the J‐curve theory, and monetary policy is leaning against the wind. (JEL E3, E5, F31, F32, F41)     

论近代川边治理与国防安全：从赵尔丰到刘文辉

风云激荡的近代“川边”,历任主政者的川边治理成效殊异：赵尔丰籍“平康三策”,锐意进取,开拓出广阔的川边境域,成功践行“固川保藏”方略。尹昌衡藉个人英雄主义维持短暂的绚烂;其后走马灯式的镇守使无法掌控川边局势,失地溃败;颇具政治韬略的刘文辉,妥善处理民族关系,稳固川边,促使西康成功建省。34年的川边治理为现代西南边疆治理留下了鲜活的经验教训,川滇藏结合部需要新的边疆治理统筹。     

平台竞争、排他性协议与竞争瓶颈

在很多双边市场中,经常出现平台一边的用户与平台之间产生利益纠纷的现象,例如顺丰速运与菜鸟网络之间的纠纷等,本文从理论模型的角度研究了这种经济现象。文章通过将双边市场的用户分为视平台有差异和无差异两种类型,研究了平台如何掠夺视平台无差异的用户所有剩余的问题。研究发现,平台厂商有与视平台无差异的用户签订排他性协议的激励;无论签订排他性协议与否,这类用户都将被掠夺所有剩余,产生了所谓的"竞争瓶颈";排他性协议带来的福利效应并不明确,当平台的边际成本和交叉外部性参数较大时,排他性协议的签订能够提升社会总福利。