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我国天然气交易中心与地区基准价格体系的构建——基于主成分分析法 被引量:1
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作者 徐斌 刘杰帅 《价格月刊》 北大核心 2017年第10期1-7,共7页
随着我国天然气市场快速发展,天然气定价机制不合理问题开始凸显。天然气交易中心的构建,形成地区性市场基准价格,可以缓解价格扭曲,推动天然气市场发展。由于中国地域广袤,区域差异较大,气源多样,成本难以统一,急需建立多个天然气交易... 随着我国天然气市场快速发展,天然气定价机制不合理问题开始凸显。天然气交易中心的构建,形成地区性市场基准价格,可以缓解价格扭曲,推动天然气市场发展。由于中国地域广袤,区域差异较大,气源多样,成本难以统一,急需建立多个天然气交易中心,形成不同的天然气价格基准点,以实现天然气价格形成市场化。通过研究北美和欧洲天然气市场已经形成的多个天然气交易中心的特点,总结建立天然气交易中心应该具备相关条件,进而选取我国具备条件的四川、陕西、新疆、山东、江苏、广东6个地区进行考察,利用主成分分析法对6个地区11个指标进行评分排名,得出结论是四川、山东和江苏的竞争力相对较高,未来可重点在上述地区布局天然气交易中心。 展开更多
关键词 天然气定价 基准枢纽 交易中心 主成分分析法
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A Proposed Benchmark to Evaluate Investment in Maritime Hub Ports
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作者 Salma Zaki Abd Elfattah Salama Mohamed Abd Elkader Tawfik 《Journal of Shipping and Ocean Engineering》 2012年第5期293-303,共11页
This paper concerns in studying the evaluation of investment in sea hub ports, in terms of investment's real cost, types of investments, their aims, the direct and indirect effects of these investments, and the vario... This paper concerns in studying the evaluation of investment in sea hub ports, in terms of investment's real cost, types of investments, their aims, the direct and indirect effects of these investments, and the various methods used to assess the expected returns from such projects, in order to propose a criterion for investment in sea hub ports. Through divining methodological framework into three sections: the first one covers the topic of investment in general, its types, purposes, and its determinants; While the second section covers the different definitions of ports and types of investment projects in them, their nature, purposes and effects; Section three concentrates on the appropriateness of the methods used to evaluate sea port project, concluding a benchmark formula to be used in evaluating maritime hub port investment projects. 展开更多
关键词 Port investment transshipments EVALUATION economic impact.
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