外汇储备剧增导致的货币政策困境

外汇储备是体现和制约货币政策有效性的重要因素。根据“三元悖论”,中国政府为确保汇率稳定,同时实现资本准自由流动,必定要以牺牲货币政策独立性为代价。外汇储备超常增长、大量外汇占款导致央行货币政策的实施陷入被动和效果趋弱的困境,给宏观调控政策的选择提出更加复杂的难题。基于此现状,本文对该困境形成的原因和不利影响加以分析,尝试寻求解决办法。     

A Fuzzy clustering approach to the key sectors of the Spanish economy

The search for key sectors in an economy has been and still is one of the more recurrent themes in input–output analysis. When using clustering techniques, sectors can only belong to a group, having a particular performance. But, actually, the same sector could be important from different perspectives at the same time, to a different degree. So, a fuzzy clustering approach is needed. In this work we propose a multidimensional approach to classify the productive sectors of the Spanish input–output table for 1995, based on three groups of variables: those related to their productive integration, others measuring their specific weight in the economy and finally some showing their economic dynamic. We also incorporate into the analysis the technological level, which being a categorical variable presents special methodological problems. All these questions are tackled applying a robust and fuzzy clustering analysis, which gives as a result a classification of sectors illustrating the role that each one plays in the Spanish economy.     

SKIP密钥管理协议在宽带VPN中的应用研究

在对目前几种密钥管理协议特点进行分析的基础上，给出了能适应宽带虚拟专用网（VPN）环境，具有更高安全性的SKIP密钥管理协议。文中对该协议及其特点进行了讨论，并研究了将SKIP密钥管理协议应用于支持IPsec的VPN设备，给出了SKIP协议与IPsec结合的体系结构。     

乌昌经济一体化进一步推进应重点把握好的几个关键点——《乌昌地区社会经济发展研究》项目调研报告

针对乌昌经济一体化中存在的突出问题,提出进一步推进应重点把握的几个关键点:一是观念上的统一;二是建立跨界管理的实质性的组织、机构,重构行政体系;三是制定统一规划,规划先行;四是把握政府与市场的关系;五是进行体制机制创新;六是争取"国家综合配套改革试验区"的设立。     

Incompetency training: Theory, practice, and remedies

“Incompetency training” includes formal and informal instruction that consciously (purposively) or unconsciously imparts knowledge, attitudes, beliefs, and behavior (including procedures) that are useless, inaccurate, misleading, and/or will lower performance outcomes of the trainee versus no training or training using alternative training methods. “Imparts” in the definition refers to exposing a trainee to incompetency training; such exposure is not a guarantee that the training increases the trainee's incompetence. This editorial is to stimulate research interest among scholars in incompetency training theory, evidence, and the efficacy of remedies. The editorial offers an early workbench model of incompetency training theory. The theory includes the proposition that executives and associates in firms, academia, and government organizations consciously as well as unknowingly offer incompetency training in many contexts. Increasing trainees' vigilance and ability to recognize exposure to incompetency-training may help trainees to decrease the effectiveness (impact) of exposures to incompetency training—advancing incompetency training theory and knowledge of incompetency training practice may be necessary conditions for remedying negative outcomes that follow from trainees receiving such training. Available evidence supports the first proposition and, to a limited extent, the second proposition.     

地勘单位境外投资项目后期运作问题及对策研究

地勘单位境外投资项目后期运作中,存在着股权不断被稀释、管控程度薄弱、应对风险能力不强等问题。产生此类问题的原因是由于盲目投资,欠缺合作共赢的商业运作模式,国际化专业人才缺乏,项目调查研究不深入,东道国政府政策限制等。应从如下方面入手解决问题:加强交流以增强了解与合作,与有实力的矿业企业合作,拓展融资渠道,重视人力资源以整合好国内外人才,熟悉境外相关法律。     

我国民航运输业垄断现状分析与政策建议

我国民航运输业长期以来受国家管制,是传统的垄断行业。党的十七大报告指出:要深化垄断行业改革,引入竞争机制,加强政府监管和社会监督。在新的形势下,我国民航业的规制改革势在必行。本文分析了我国民航业的垄断现状,并据此提出了发展民航业的几点具体建议。     

直升机载雷达侦察系统总体设计

本文在讨论直升机载雷达总体需求的基础上,介绍了直升机载雷达侦察系统的组成和功能,总结了系统总体设计中涉及到的关键技术,并对关键技术的解决措施进行了分析。     

Reviewing the DATAS of aviation research data: Diversity,availability, tractability,applicability, and sources

The field of aviation research is entering the era of big data. While data-driven advancements in aviation have clearly brought about applicable models and results with immediate implications, we argue that the influx of aviation data should be better characterized and documented to enable more efficient and standardized usage. To this end, we examine 200 well-cited research articles from sub-disciplines ranging from revenue management to air traffic control published on or after 2010 in order to analyze the diversity, availability, tractability, applicability, and sources (DATAS) of data utilized in aviation research. We find high levels of data diversity within aviation research, with 16 data categories ranging from air traffic flow management-type data to data from distributed sensors in line with the Internet-of-Things (IoT) paradigm. We identified a dominance of proprietary, non-public data in aviation research, with 68% of the 200 research articles utilizing solely proprietary data in deriving their results, and a further 8% utilizing a mixture of proprietary and publicly available data. The pervasiveness of proprietary data has implications on reproducibility and extending research results. We also highlight the increasing tractability of the data by surveying the computational power required to process the data sets, and present vignettes of applications and results that stem from these data-driven studies. Finally, we propose several recommendations regarding standardizing data source nomenclature as well as increasing the availability of and usage of publicly available data.     

历史制度主义视野下我国科技人才政策战略转型与变革逻辑

改革开放以来，我国科技人才政策历经恢复调整、初步确立、转型完善、深化改革到全面建设等5个发展阶段。基于历史制度主义分析范式，探究我国科技人才政策变革逻辑与动力机制。结果显示，路径依赖是我国科技人才政策保持结构稳定性与内在连贯性的基本阐释工具，体现在回报递增效应、多主体协作效应和制度场域自我强化等方面；关键节点在政治逻辑作用下成为科技人才政策变革的原始驱动力，其本质是在保证政治属性不变的前提下建构以绩效为核心的强制性制度变迁。进一步，在借鉴发达国家成熟经验的基础上，构建以“缓冲器”式中介组织为核心的行政认同、市场协调和学术本位之间的合理张力，进而推进利益相关者群体利益协调与整合机制成为我国科技人才政策不断自我革新的有效治理路径。