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电力市场三种寡头竞争模型的市场力分析比较 被引量:56
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作者 宋依群 侯志俭 +2 位作者 文福拴 倪以信 吴复立 《电网技术》 EI CSCD 北大核心 2003年第8期10-15,共6页
市场在经济学中表现为市场参与者能够抬高市场价格的能力,在寡头竞争电力市场中则表征市场内电力公司影响市场结清电价的能力。应用博弈论分析研究了寡头竞争电力市场的市场力。以完全竞争市场下的均衡发电量和均衡电价为基准,分别比较... 市场在经济学中表现为市场参与者能够抬高市场价格的能力,在寡头竞争电力市场中则表征市场内电力公司影响市场结清电价的能力。应用博弈论分析研究了寡头竞争电力市场的市场力。以完全竞争市场下的均衡发电量和均衡电价为基准,分别比较了按Cournot模型、Stackelberg模型(领导者跟随者模型)和Forchheimer模型(领导者价格接受者模型)模拟寡头竞争电力市场情况下的电力公司所拥有的市场力,并且分析生产成本、市场中的电力需求弹性、市场中作为领导者的电力公司数量以及容量限制对市场力的影响。研究表明,在3种模型市场中,Cournot模型市场拥有的市场力为最大,Stackelberg模型市场次之,Forehheimer模型市场为最小。 展开更多
关键词 工业 市场 寡头竞争模型 市场力分析 市场价格 经济学
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电力市场中考虑发电机组功率速度约束的市场力分析 被引量:14
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作者 赵建国 韩学山 程时杰 《电网技术》 EI CSCD 北大核心 2003年第11期43-47,74,共6页
电力商品的特殊性决定了电力市场是一个不完全竞争的市场,一般用市场力来衡量不完全竞争的程度。作者在回顾、分析和评价Lerner 指标、HHI指标和总需求比总供给指标的基础上,阐述了机组功率速度约束影响上述指标的机理。分析了因这一约... 电力商品的特殊性决定了电力市场是一个不完全竞争的市场,一般用市场力来衡量不完全竞争的程度。作者在回顾、分析和评价Lerner 指标、HHI指标和总需求比总供给指标的基础上,阐述了机组功率速度约束影响上述指标的机理。分析了因这一约束造成的机组有效响应能力与负荷变化之间的矛盾,其表现为市场力指标不是单调地随时间而变化,这说明任何机组都有产生市场力的可能性。最后指出进行市场力指标评价时应当考虑的条件。 展开更多
关键词 发电机组 功率速度约束 市场力分析 市场 价格 商品
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环保型特种溶剂油的市场及竞争力分析 被引量:2
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作者 孔军 《中小企业管理与科技》 2009年第22期301-301,共1页
本文重点介绍了国内环保型特种溶剂油的产品特点和市场现状,认为生产环保型特种溶剂油可以提高产品档次和附加值,增加企业经济效益。
关键词 高压加氢 特种溶剂油 竞争 市场分析
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分析师经验对企业创新投入的影响研究
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作者 段新生 陈雪 《商业会计》 2021年第23期42-45,共4页
文章以2010—2019年我国非金融类上市公司为样本,实证检验了分析师经验对企业创新投入的影响。结果发现在新兴市场分析师个体业务积累经验越丰富,受其关注企业的创新投入水平越高;分析师市场影响力的增强,则会抑制受其关注企业的创新投... 文章以2010—2019年我国非金融类上市公司为样本,实证检验了分析师经验对企业创新投入的影响。结果发现在新兴市场分析师个体业务积累经验越丰富,受其关注企业的创新投入水平越高;分析师市场影响力的增强,则会抑制受其关注企业的创新投入。研究结论对企业的投资行为和投资者的投资决策有参考价值。 展开更多
关键词 分析师经验 分析师个体业务积累 分析市场影响 企业创新投入
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The Relationship Between Intellectual Capital (IC) and Stock Market Performance: Empirical Evidence From Italy 被引量:4
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作者 Domenico Celenza Fabrizio Rossi 《Journal of Modern Accounting and Auditing》 2012年第11期1729-1741,共13页
Intellectual capital (IC) is an important source of value for companies. The competitive firm invests in new productive ideas through scientific and technological researches of the human factor and services. The tra... Intellectual capital (IC) is an important source of value for companies. The competitive firm invests in new productive ideas through scientific and technological researches of the human factor and services. The traditional factors of"old economy" based on physical assets have been replaced or at least reinforced, with the belief that the "new economy" takes its steps mainly through IC. The knowledge workers, at every organizational level, have the knowledge that allows the organization to be competitive and deal with the complexity of the environment by creating intellectual added value. In particular, the proposed analysis consists with an empirical way to show other financial indicators and market-to-book (MTB) value from the perspective of creating value for shareholders based on the dynamics of companies' performance, as value-added intellectual capital (VAICTM) is capable of expressing a direct relationship with the return on equity (ROE). The traditional financial information cannot ensure the high efficiency of a stock market and the need for IC reporting to explain intangible asset contribution in company performance. 展开更多
关键词 intellectual capital (IC) evaluation method value-added intellectual capital (VAICTM) knowledge-based firms stock market performance financial ratios
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Market-Based Solutions to Overcapacity:Principles and Measures 被引量:1
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作者 Liu Jiejiao Wang Zhen 《China Economist》 2018年第2期28-39,共12页
This paper takes stock of theoretical economic analyses of overcapacity,reveals the factors that induce actual capacity to deviate from market equilibrium, examines market-based mechanisms to resolve overcapacity, and... This paper takes stock of theoretical economic analyses of overcapacity,reveals the factors that induce actual capacity to deviate from market equilibrium, examines market-based mechanisms to resolve overcapacity, and identifies long-term mechanisms and assurances for market-based solutions to overcapacity. Given the limitations of market mechanism and the government's role, neither the market nor the government is able to resolve the problem of overcapacity on its own. In resolving overcapacity, market and the government should play their respective roles rather than replace one another. While the market is a dominant force in regulating capacity and achieving supply and demand equilibrium, the government should provide institutional assurances for effective market operation. Market-based solutions to overcapacity require the government to provide institutional assurances and create a system where market entities decide to enter and exit the market under effective restraints and incentives with a clear boundary. 展开更多
关键词 overcapacity market mechanism government economic policy
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Effect of Market Power in Electricity Markets
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作者 马歆 侯志俭 +1 位作者 蒋传文 刘涌 《Journal of Donghua University(English Edition)》 EI CAS 2003年第4期137-140,共4页
The main objective of this paper is to show an overview analysis of market power issues.Market power reflects the scarcity of power supply.It is the ability of a particular seller or group of sellers to maintain price... The main objective of this paper is to show an overview analysis of market power issues.Market power reflects the scarcity of power supply.It is the ability of a particular seller or group of sellers to maintain prices profitably above competitive levels for a significant period of time.Because the electric power system has its own characteristics that are different to other economic systems,both physical factors and economic factors of power system are key elements on this definition.We study some cases here,including different line limit levels,load levels and bid strategy through a market model based on OPF (optimal power flow) with a decommitment algorithm. 展开更多
关键词 Electricity market Market power analysis OPF market model
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Spatial Organization Mechanism of Aircraft Manufacturing
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作者 Dong Yan1,2,Chu Bo1,3 1.Institute of Geographic Sciences and Natural Resources Research,CAS,Beijing 100101,China 2.Graduate University of Chinese Academy of Sciences,Beijing 100049,China 3.Fujian Provincial Department of Foreign Trade and Economic Cooperation,Fuzhou Fujian 350003,China 《Chinese Journal of Population,Resources and Environment》 2010年第1期62-70,共9页
Unquestionably,aircraft industry plays an important part in both economy and security of a nation.However,few of articles have dealt with the spatial development of this industry sector.The purpose of this article is ... Unquestionably,aircraft industry plays an important part in both economy and security of a nation.However,few of articles have dealt with the spatial development of this industry sector.The purpose of this article is to analyze the dynamics of agglomeration and diffusion of aircraft industry.In a historical view,with some spatial analysis methods,this research discusses the characteristics and patterns of aircraft industry's spatial organization and evolution,globally,nationally and regionally respectively.We find out there is a ‘Matthew effect' in aircraft industry of the world,and the spatial evolution of the industry is consistent with the nation's industrialization process.Then,it concludes that the main agglomeration forces consist of capital,talents,technology and cluster's advantages,and the main diffusion forces include comparative advantages,cost and risk sharing,emerging markets,development policy for backward regions and military requirements.All the factors can be divided into market forces making the spatial development of aircraft industry normal and non-market forces making that irregular.In particular,lessons from the USA and France are expected to be conducive to the rise of China's aircraft industry in the future. 展开更多
关键词 aircraft manufacturing DIFFUSION AGGLOMERATION spatial evolution
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An Empirical Analysis of Employment Stability and the Wage Gap of Rural Migrants in China Based on Quantile Regression 被引量:1
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作者 Liu Baihui Kou Enhui 《China Economist》 2013年第6期98-111,共14页
Under the background of accelerated integrated urban-rural development, this paper offers an analysis on the short-term employment of rural migrants in China and resulting wage gap between long-term and short-term rur... Under the background of accelerated integrated urban-rural development, this paper offers an analysis on the short-term employment of rural migrants in China and resulting wage gap between long-term and short-term rural migrants. On the basis of correcting for sample selection problems arising from labor market participation and short-term employment, rural migrants' wage function is estimated using quantile regression method, and wage gap between long-term and short-term rural migrants is decomposed using MM method. Our empirical results suggest that those with a higher level of education, training experience and local employment recommended by family relations or in formal labor market are more likely to secure long-term labor contract," region and education have significant contributions to the wage of rural migrants," rural migrants of both long- and short-term contract types have great gaps at the bottom of salary distribution; and there exists a sticky floor effect in wage difference of rural migrants. These results have important policy implications in enhancing employment stability of rural migrants, improving income distribution equity, speeding up the process of urbanization, and balancing regional development. 展开更多
关键词 rural migrant workers wage gap quantile regression sticky floor effect
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Market orientation for the hotel segment: The Portuguese case
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作者 Mario Raposo Crlstlna Estevao +1 位作者 Emerson Mamardes Maria Jose Dommgues 《Chinese Business Review》 2010年第5期29-45,共17页
In view of the importance of the hotel segment for the tourism and for the economy of countries such as Portugal, the objective of this study was to measure the level of orientation for the market of the largest hotel... In view of the importance of the hotel segment for the tourism and for the economy of countries such as Portugal, the objective of this study was to measure the level of orientation for the market of the largest hotel groups of Portugal. This investigation initially emphasized the importance of the marketing for the organizations, mainly the orientation for the market. After a brief explanation on the hotel segment in Portugal, an empirical study was presented, of quantitative, exploratory and traversal character, performed with the largest groups of 20 hotels of Portugal, using as an instrument of collection data, the traditional Markor scale (market orientation) adapted to the hotel sector. After analyzing the data, it was found in the investigated organizations that a good capacity to generate market information and response to the market, which formed two of the three constructs of Markor scale. However the results obtained with the construct of the dissemination of market information were below the expectations. It was possible to conclude that marketing professionals of the large hotel groups in Portugal are well oriented to the market, something not shared by other investigated departments of the hotels. So the current challenge for the main networks of hotels in Portugal is to improve the internal dissemination of information that marketing professionals gathered at the market. 展开更多
关键词 marketing management orientation to the market Markor hotel sector in Portugal
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Technology and Market Prospect Analysis of Low Cost Small-lift Launch Vehicles for Small Satellites
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作者 YAO Yanfeng CUI Yinghui +1 位作者 FAN Wei PEI Shengwei 《Aerospace China》 2016年第3期36-43,共8页
The technological development status of new generation low cost small-lift launch vehicles applied to small satellite launch is investigated in this paper. The development trends are summarized, including low cost and... The technological development status of new generation low cost small-lift launch vehicles applied to small satellite launch is investigated in this paper. The development trends are summarized, including low cost and rapid response capability, utilization of mature rocket and missile technology, the development of mobile launch technology adopting air-based platforms and use of innovative technology. Moreover, the external power and internal demand of the small-lift launch vehicle are analyzed and the market prospect is forecasted. Finally, proposals for the development of small-lift launch vehicles are put forward, including exploration of the potential of existing rocket and missile technology, development of multi-platform mobile launch technology and further application of innovative technology and ideas. 展开更多
关键词 Small satellite Low cost Small-lift launch vehicle Development trends Market prospect
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