期刊文献+
共找到74,540篇文章
< 1 2 250 >
每页显示 20 50 100
Main Regulations of CAPM Model and Its Modern Modification 预览
1
作者 Lamara Qoqiauri Nino Qoqiauri 《管理研究:英文版》 2019年第1期15-32,共18页
The article gives readers the main regulations of elaboration of capital actives evaluating model(CAPM)theory,topics of its practical usage,common ways of definition of investments(securities)optimal portfolio and on ... The article gives readers the main regulations of elaboration of capital actives evaluating model(CAPM)theory,topics of its practical usage,common ways of definition of investments(securities)optimal portfolio and on the basis of CAPM theory it is discussed evaluating methods of investing business,and it is highlighted two criteria of portfolio chosen by an investor—profit and risk.Besides,it is discussed modern modification of the mentioned model on the point of time horizon,a problem of time factor measurement while evaluating risk and profit,also evaluation of investing effectivity by using sharp coefficient.The work presents and evaluates possible income of securities and possibilities of risks in a modern way,which is characteristic only for CAPM model and it is considered to be its positive side. 展开更多
关键词 SECURITIES risk INCOME CAPM model stock MARKET bond MARKET optimal PORTFOLIO investments market sharp coefficient
在线阅读 下载PDF
Export Performance of China: A Constant Market Share Analysis
2
作者 Nidhi Bagaria Saba Ismail 《中国经济学前沿:英文版》 2019年第1期110-130,共21页
In the light of the fact that there has been substantial growth in China's exports in last three decades, particularly after China joined the WTO in 2001, this article investigates the major sources of China's... In the light of the fact that there has been substantial growth in China's exports in last three decades, particularly after China joined the WTO in 2001, this article investigates the major sources of China's export performance during 2002-2014 by using the constant market share (CMS) model. In this study, exports are further decomposed in three categories based on their technological intensity using Lail (2000) classification on 3 digit SITC Revision-3 data provided by UN Comtrade via WITS database. The categories are high technology, medium technology and low technology. It is found that growth of China's exports has, moreover, remained above world exports growth in all three categories during the period of study. The analysis reveals that export performance is mainly attributed to 让s competitive strength in the global market, though decreasing trend has been observed in the competitiveness of all three categories. Increasing cost of labor and appreciating RMB could be the causes behind decreasing competitiveness of Chinese exports. Product structure effect, on an average, has turned out to be negative in all the categories which is the most disturbing aspect of China's export performance. On the other hand, geographical structure effect has positive impact on export performance of high-technology based exports whereas it has negative impact on export performance of low-technology and medium-technology based exports. China being the world's largest exporter, decreasing competitiveness and wrong product structure effect could adversely influence its export performance in particular and its growth in general. 展开更多
关键词 CONSTANT MARKET SHARE (CMS) China's SHARE in world exports export performance MARKET SHARE EFFECT product STRUCTURE EFFECT geographical STRUCTURE EFFECT competitiveness HI-TECH
On the Issue of Commercial Insurance Market as in the Slovak Republic 预览
3
作者 Barbora Drugdová 《管理研究:英文版》 2019年第2期157-161,共5页
The insurance industry in the Slovak Republic has become an important dynamically developing area of economy.Insurance affects all the activities into the national economy,touching every company,business,citizen,socie... The insurance industry in the Slovak Republic has become an important dynamically developing area of economy.Insurance affects all the activities into the national economy,touching every company,business,citizen,society,and foreign countries.The Slovak insurance market is developed.As at 31.12.2017,there operated 21 commercial insurance companies on the Slovak commercial insurance market.The evolution of the market in life insurance in recent years is more dynamic than in the non-life insurance. 展开更多
关键词 COMMERCIAL INSURANCE MARKET life INSURANCE non-life INSURANCE INDICATORS of the INSURANCE MARKET COMMERCIAL INSURANCE COMPANIES
在线阅读 下载PDF
Commodity Market and Financial Derivative Instruments: Is There a Cointegration? 预览
4
作者 Maria Leone Alberto Manelli Roberta Pace 《现代会计与审计:英文版》 2019年第4期185-203,共19页
Over the past decade, agricultural commodity prices underwent wild swings, Periods of high growth in 2008 were followed by periods of sudden decrease in 2009, The excessive increase in food price volatility is a subje... Over the past decade, agricultural commodity prices underwent wild swings, Periods of high growth in 2008 were followed by periods of sudden decrease in 2009, The excessive increase in food price volatility is a subject of great interest because it has to do with the survival of mankind, Recent academic studies and policy makers have reached sharply different conclusions about the dynamics of such fluctuations, Also, some of them have indicated the main cause in speculative transactions and in the little regulation of futures markets, This paper intends to verify if there exists a co-implication between wheat futures price and some financial “speculative” variables, The results of cointegration analysis show that there is no evidence that financial derivative instruments determine the fluctuations of wheat futures price. 展开更多
关键词 FINANCIAL MARKET COMMODITY MARKET SPECULATION GARCH model
在线阅读 下载PDF
健康管理:在国家、市场及个体之间 预览
5
作者 李洁 郭丽娜 《医学与哲学》 2019年第1期12-16,共5页
十九大报告后,国家层面的医疗卫生体制建设、市场层面的健康产业发展及个体层面的健康文明生活方式倡导都成为实施健康中国战略的必要部分,参与到广义的健康管理中。国家、市场以及个体都出于自身目标需求并利用自身权力进行健康管理:... 十九大报告后,国家层面的医疗卫生体制建设、市场层面的健康产业发展及个体层面的健康文明生活方式倡导都成为实施健康中国战略的必要部分,参与到广义的健康管理中。国家、市场以及个体都出于自身目标需求并利用自身权力进行健康管理:国家出于对政权合法性的构建建立起健康管理制度,市场出于利益追逐推进加深健康的资本化,个体则为了获得健康状态不断产生健康需求。国家、市场及个体承担自身责任是实现健康管理的前提,但也各自的主体局限性也会影响健康管理的目标,明确三者的角色定位是科学有效进行健康管理的前提。 展开更多
关键词 国家 市场 个体 健康管理
在线阅读 免费下载
Corporate Board Structure and Corporate Performance:Empirical Analysis of Listed Companies in China
6
作者 Le Wang Qun Liu Masaharu Hanazaki 《复旦人文社会科学论丛:英文版》 2019年第1期137-175,共39页
Using cross section data of 3 years 2000,2007,and 2014 for non-financial listed firms in China,this study quantitatively analyzes the relationship between government-affiliated corporate executives and corporate perfo... Using cross section data of 3 years 2000,2007,and 2014 for non-financial listed firms in China,this study quantitatively analyzes the relationship between government-affiliated corporate executives and corporate performance.We classify the sample firms into two groups,based on whether their chief executive officers(CEOs)and independent directors are prior government officials or not.Then,we empirically examine the difference in corporate performance between the two groups.We find that the appointment of CEOs and directors of listed companies in China is significantly affected by government shareholders.The results also suggest that prior to 2000 government-affiliated CEOs impaired corporate performance.But with the establishment of State-owned Assets Supervision and Administration Committee and the completion of the Split-Share Structure Reform in 2006,government as a shareholder began to give priority to corporate value maximization,and government-affiliated CEOs began to help improve corporate performance.However,due to the slowdown of economic growth after 2012,problems such as inefficiency and corruption brought by government-affiliated executives manifested again,and therefore,corporate performance deteriorated.Meanwhile,government-affiliated independent directors have limited influence on these factors. 展开更多
关键词 CORPORATE GOVERNANCE SOCIALIST market economy Board of directors GOVERNMENT OFFICIALS
“应得原则”与社会公正
7
作者 李石 《北京大学学报:哲学社会科学版》 CSSCI 北大核心 2019年第2期42-50,共9页
“应得原则”是社会中各行各业普遍适用的社会分配原则。其分配的依据是:各行业的资深从业人员依据该行业的发展目标,制定出判断相关资源竞争者之“表现”(包括"能力”“品质”“业绩”“成就”,等等)的标准,越符合该行业发展目标... “应得原则”是社会中各行各业普遍适用的社会分配原则。其分配的依据是:各行业的资深从业人员依据该行业的发展目标,制定出判断相关资源竞争者之“表现”(包括"能力”“品质”“业绩”“成就”,等等)的标准,越符合该行业发展目标的“表现”将获得越多的资源(包括财富、荣誉和各种机会)。这一分配原则在大多数情况下是不完善的程序正义,可能混入“运气”“社会境况”“自然禀赋”等不公平的因素。为最大限度地去除“应得原则”的各种不公平的因素,一方面,在人们的基本生活需要领域要严格依照“按需分配”原则满足所有社会成员的基本需要;另一方面,要防止教育、医疗等领域的过度市场化。同时,“应得原则”的公平应用还有赖于各专业领域从业人员坚守职业道德,抵御“金钱”“权力”和“裙带关系”等因素对社会分配的不良影响。 展开更多
关键词 应得 运气 需要 市场
国内地暖管专用PERT的市场分析 预览
8
作者 侯子龙 魏文杰 《合成树脂及塑料》 CAS 北大核心 2019年第2期90-93,共4页
综述了地暖管专用耐热聚乙烯(PERT)的种类、特点,国内地暖管市场原料供应情况以及下游管材行业现状和发展趋势,通过PERT的种类和性能比较,阐明了国产树脂与进口树脂的市场占有率以及质量价格差异,分析了国产PERT产品的优劣势,为国产PER... 综述了地暖管专用耐热聚乙烯(PERT)的种类、特点,国内地暖管市场原料供应情况以及下游管材行业现状和发展趋势,通过PERT的种类和性能比较,阐明了国产树脂与进口树脂的市场占有率以及质量价格差异,分析了国产PERT产品的优劣势,为国产PERT产品的质量改进和市场推广提供了参考依据。 展开更多
关键词 地暖管 耐热聚乙烯 进口 国产 市场
在线阅读 下载PDF
Towards Understanding the Security of Modern Image Captchas and Underground Captcha-Solving Services
9
作者 Haiqin Weng Binbin Zhao +4 位作者 Shouling Ji Jianhai Chen Ting Wang Qinming He Raheem Beyah 《大数据挖掘与分析(英文)》 2019年第2期118-144,共27页
Image captchas have recently become very popular and are widely deployed across the Internet to defend against abusive programs. However, the ever-advancing capabilities of computer vision have gradually diminished th... Image captchas have recently become very popular and are widely deployed across the Internet to defend against abusive programs. However, the ever-advancing capabilities of computer vision have gradually diminished the security of image captchas and made them vulnerable to attack. In this paper, we first classify the currently popular image captchas into three categories: selection-based captchas, slide-based captchas, and click-based captchas. Second, we propose simple yet powerful attack frameworks against each of these categories of image captchas. Third, we systematically evaluate our attack frameworks against 10 popular real-world image captchas,including captchas from tencent.com, google.com, and 12306.cn. Fourth, we compare our attacks against nine online image recognition services and against human labors from eight underground captcha-solving services. Our evaluation results show that(1) each of the popular image captchas that we study is vulnerable to our attacks;(2) our attacks yield the highest captcha-breaking success rate compared with state-of-the-art methods in almost all scenarios;and(3) our attacks achieve almost as high a success rate as human labor while being much faster.Based on our evaluation, we identify some design flaws in these popular schemes, along with some best practices and design principles for more secure captchas. We also examine the underground market for captcha-solving services, identifying 152 such services. We then seek to measure this underground market with data from these services. Our findings shed light on understanding the scale, impact, and commercial landscape of the underground market for captcha solving. 展开更多
关键词 IMAGE captchas CAPTCHA SECURITY captcha-solving service UNDERGROUND market
石油零售营销决策系统的研发与实践 预览
10
作者 缪运录 江海 《石油库与加油站》 2019年第1期22-26,I0002共6页
面对广东石油成品油市场激烈的竞争形势,利用信息化手段,设计了一套成品油零售实现全局、科学和快速决策的新型营销系统。比较详细地介绍了该系统的总体架构、技术架构、系统功能和关键技术与创新点,用实际案例证实了该系统在石油零售... 面对广东石油成品油市场激烈的竞争形势,利用信息化手段,设计了一套成品油零售实现全局、科学和快速决策的新型营销系统。比较详细地介绍了该系统的总体架构、技术架构、系统功能和关键技术与创新点,用实际案例证实了该系统在石油零售营销决策过程中发挥了重要作用。 展开更多
关键词 成品油 市场 竞争 营销系统 设计 介绍 应用
在线阅读 下载PDF
磷酸二氢钾的应用及市场分析 预览
11
作者 李伟 《盐科学与化工》 CAS 2019年第1期7-9,共3页
文章对磷酸二氢钾的生产工艺进行了简述,并综述其在农业、工业、食品等行业上的广泛用途,同时分析了磷酸二氢钾的市场和未来发展趋势。
关键词 磷酸二氢钾 生产 应用 市场
在线阅读 下载PDF
行业需求下的环境设计专业“导链式”教学模式研究
12
作者 师宽 《艺术与设计:理论版》 2019年第1期141-143,共3页
近年来我国基础建设大趋势逐渐由“多快好省”的粗放式转向“精工细作”的存量改造。原有技能课与单一专业设计课二元制课程体系需要有针对性地进行调整完善。文章通过多元化教学、开放式团队教学、竞争性测评、跟踪式评价等手段。探索... 近年来我国基础建设大趋势逐渐由“多快好省”的粗放式转向“精工细作”的存量改造。原有技能课与单一专业设计课二元制课程体系需要有针对性地进行调整完善。文章通过多元化教学、开放式团队教学、竞争性测评、跟踪式评价等手段。探索在多维度上建立不同专业课间、专业课与技能课间的导链式联动关系,培养学生的个性化表达与设计原创能力等核心设计能力。培养更加适应新形势市场需求的本科毕业应用型设计人才。 展开更多
关键词 课程导链 市场 核心设计能力
权力资本化及其双重超越路径——基于政府治理现代化视角 预览
13
作者 闫瑞峰 胡超 《重庆社会科学》 CSSCI 2019年第5期71-79,共9页
权力资本化现象以权力阶层的经济人动机为核心,寄生于不完善的市场经济体制和政府行政管理制度之中,通常表现为权力向资本寻租,权力主体之间相互寻租,权力向公共财政寻租,以及权力向劳动阶层寻租。从制度上摆脱相关体制病灶,提高政府治... 权力资本化现象以权力阶层的经济人动机为核心,寄生于不完善的市场经济体制和政府行政管理制度之中,通常表现为权力向资本寻租,权力主体之间相互寻租,权力向公共财政寻租,以及权力向劳动阶层寻租。从制度上摆脱相关体制病灶,提高政府治理能力,是根治权力资本化现象的根本所在。全面超越权力资本化需要通过管控权力和规制资本的双重路径来培育有效市场和打造有为政府,进而实现政府治理体系现代化的目标。 展开更多
关键词 权力资本化 市场 政府 经济人 寻租
在线阅读 免费下载
我国辛醇市场分析及研发进展 预览
14
作者 汪伟利 吴世慧 +1 位作者 金广林 丁国荣 《化学工业》 CAS 2019年第3期11-15,共5页
介绍了我国辛醇的生产和市场情况,包括产能、产量、进出口量及表观消费量等;同时介绍了辛醇的研发进展。
关键词 辛醇 生产 市场 技术进展
在线阅读 下载PDF
土地流转中政府和市场的关系研究——以山东省为例 预览
15
作者 张慧 《安徽农业科学》 CAS 2019年第5期264-267,共4页
随着社会经济的发展,农村土地承包经营权流转已成为发展农业现代化、提高农民收入、实现乡村振兴的前提条件。山东是一个农业大省,农村土地流转市场交易量大、交易频繁,在交易中产生的诸多问题更多更具有代表性,而解决问题的关键就是处... 随着社会经济的发展,农村土地承包经营权流转已成为发展农业现代化、提高农民收入、实现乡村振兴的前提条件。山东是一个农业大省,农村土地流转市场交易量大、交易频繁,在交易中产生的诸多问题更多更具有代表性,而解决问题的关键就是处理好政府与市场的关系。通过对山东省样本点实地调查,分析了农村土地承包经营权流转中存在问题,指出了解决土地流转中出现的各种问题的关键是处理好政府和市场的关系:土地流转的根本目的是增加农民收入;发挥好市场在土地流转中的作用,必须要做好两点:确保农民在土地承包经营权流转中的主体地位;政府在土地流转市场中要做好服务。 展开更多
关键词 土地承包经营权 流转 政府 市场 关系
在线阅读 下载PDF
The inheritance path research of the processing of Chinese materia medica in Anguo herbs market 预览
16
作者 Ying Chen Li-Na Zhang +4 位作者 Yu-Hui Ma Miao-Miao Lin Xing Zhang Yu Wang Guo-Wei Zhang 《TMR理论与假说》 2019年第1期128-134,共7页
Anguo,known as Qizhou in ancient time,its herbs industry began in Song Dynasty,boomed in Ming,and flourished in Qing.During the development of Qizhou herbs industry,a number of special processing techniques of Chinese... Anguo,known as Qizhou in ancient time,its herbs industry began in Song Dynasty,boomed in Ming,and flourished in Qing.During the development of Qizhou herbs industry,a number of special processing techniques of Chinese Materia Medicine were produced."Qizhou's Four Uniqueness",of which,the most representative medicine includes"Hundred pieces areca","Cicada feather of Qingxia","Yunpian deer antler"and"Pound Rhinoceros unicornis L".To investigate the present inheritance situation of the traditional processing technology of Chinese Materia Medicine in Anguo herbs market,we will consult literature including the ancient books and records,Anguo local chronicles and visit the inheritors of the traditional processing technology in Anguo,and research the processing technology historical origin.This study aims to create the Anguo herbs cultural card,and enrich the cultural heritage of Chinese medicine industry of Anguo country even Hebei province. 展开更多
关键词 Qizhou's Four UNIQUENESS PROCESSING of Chinese Materia Medicine Anguo HERBS MARKET INHERITANCE PATH
在线阅读 下载PDF
Market Regulation and Fiscal Replenishment: An Analytical Framework for the Space Control Intensity for Regulatory Detailed Planning 预览
17
作者 GAN Yu 《景观研究:英文版》 2019年第2期44-50,共7页
Regulatory detailed planning is the most direct management tool for urban development and construction activities. Through theoretical deduction, this paper demonstrated the elastic relationship between the land-trans... Regulatory detailed planning is the most direct management tool for urban development and construction activities. Through theoretical deduction, this paper demonstrated the elastic relationship between the land-transferring price and the floor area ratio (FAR) of residential land, which represented the space control intensity for regulatory detailed planning. Based on the two dimensions of market regulation and fiscal replenishment, this paper also established an analytical framework for the space control intensity for regulatory detailed planning. The results showed that the space control intensity for regulatory detailed planning decreased with the expansion of urban scale and that the weaker the market regulation and the stronger the land finance dependence, the weaker the space control intensity for regulatory detailed planning. Based on this, this paper proposed that local governments should strengthen the scientificity and openness of regulatory detailed planning, institutionally resolve the predicament due to fiscal decentralization, and reduce the dependence on land transfer income. 展开更多
关键词 Land PRICE Floor area ratio (FAR) REGULATORY detailed planning Market regulation FISCAL REPLENISHMENT
在线阅读 下载PDF
中间体衍生化法与新农药创制
18
作者 刘长令 关爱莹 +1 位作者 李淼 杨吉春 《农药》 CAS CSCD 北大核心 2019年第3期157-164,共8页
针对新农药创制难度大、成功率低等特点,创建了"中间体衍生化法"。该方法的特点:在研究之初就考虑开发,选用便宜易得、安全环保的原料,采用易于产业化的反应,确保产品专利权稳定、性价比优势显著。大量实践证明该方法可大幅... 针对新农药创制难度大、成功率低等特点,创建了"中间体衍生化法"。该方法的特点:在研究之初就考虑开发,选用便宜易得、安全环保的原料,采用易于产业化的反应,确保产品专利权稳定、性价比优势显著。大量实践证明该方法可大幅提高新农药创制的成功率。针对农业生产中重大病虫草害防治难题,采用"中间体衍生化法"设计新农药分子,发明了系列农药新品种,均获国内外发明专利授权,部分品种已实现产业化,并产生很好的经济、社会和环境效益,市场前景广阔。 展开更多
关键词 中间体衍生化法 新农药创制 品种 专利 市场
Collaborative Consumption as a Source of Market Disruption 预览
19
作者 Petteri Repo Paivi Timonen 《管理研究:英文版》 2019年第1期33-41,共9页
The concept of collaborative consumption has been developed in consumer studies to define new consumption opportunities which are facilitated by information systems.Accordingly,novel services such as the ridesharing s... The concept of collaborative consumption has been developed in consumer studies to define new consumption opportunities which are facilitated by information systems.Accordingly,novel services such as the ridesharing service Uber,for transport,and the hospitality-brokering service Airbnb,for accommodation,successfully employ collaboration in consumption and provide consumers with novel types of access to services.Yet while the identification of this new characteristic of consumption is of great merit,less attention has been paid in consumer studies to how it challenges existing market arrangements.It is against this background that this article examines collaborative consumption as a source of market disruption.The article applies the concept to the empirical case of a pilot scheme in collaborative public transport(Kutsuplus),which essentially consisted of a taxi-like bus service in Helsinki,Finland.It argues that collaborative consumption may tend to contribute premium rather than standard quality in public services,which is apt to disrupt both public and private service markets.The analysis further affirms that the concept of collaborative consumption is well suited to the assessment of novel services and their disruptive characteristics. 展开更多
关键词 COLLABORATIVE CONSUMPTION CONSUMER studies market DISRUPTION PUBLIC and PRIVATE services transport
在线阅读 下载PDF
我国芳烃行业前景展望及发展建议
20
作者 门秀杰 孙海萍 雷强 《现代化工》 CAS CSCD 北大核心 2019年第3期1-4,6共5页
在回顾2017年国内芳烃市场行情的基础上,总结了2018年前三季度国内芳烃市场的供需状况和价格变化,分析了前三季度国内芳烃行业的主要特征,对国内芳烃市场情况和行业发展变化进行了展望,并针对炼化企业发展芳烃产业提出建议。
关键词 芳烃 PX 市场 应对策略
上一页 1 2 250 下一页 到第
使用帮助 返回顶部 意见反馈