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论统计相关性和因果性:以中国油价上涨与全球大地震关系为例 被引量:2
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作者 庄建仓 刘杰 +1 位作者 薛艳 韩鹏 《地震》 CSCD 北大核心 2017年第1期1-9,共9页
近些年中国油价上调时间与全球大震的发生出现同步,引起地震学家和相关人员的关注。这两者在物理上是毫无联系的事件,然而通过对2003—2015年的相关资料进行分析,发现两者发生时间具有较好的一致性,即油价上调与全球大震发生具有相关性... 近些年中国油价上调时间与全球大震的发生出现同步,引起地震学家和相关人员的关注。这两者在物理上是毫无联系的事件,然而通过对2003—2015年的相关资料进行分析,发现两者发生时间具有较好的一致性,即油价上调与全球大震发生具有相关性,这种相关性甚至通过了严格的统计检验,超出99%的置信区间。这个看似荒谬的结论背后隐藏的是一个容易被忽略的统计误区:对事后数据进行统计检验,如果有足够多的样本,通过精心挑选则一定能找到一些样本是统计相关的,即使他们之间没有任何因果关系。揭示这一统计误区对于目前地震预报使用的统计方法有重要意义,上述研究表明仅仅依靠统计检验不能判定某种现象或者异常是否与地震存在必然的因果关系,是否存在物理上的关联,因为所考察的现象或者异常有可能是大量样本中的一个被精心挑选出来的特例。在大数据大量积累和使用的今天,为了避免走入上述统计误区,需要在分析相关性的基础上,对每一种可能的前兆现象进行向前预报检验,同时探求其与地震的内在因果关系,即阐明前兆现象的物理机制。 展开更多
关键词 全球地震 中国油价上涨 统计相关 经验预报
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国内外石油价格冲击与中国股票市场 被引量:9
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作者 诸葛尚琦 郝项超 《中国物价》 2009年第6期41-44,共4页
本文选取了2002年1月到2008年底的Brent原油、上海期货交易所燃料油价格和中国沪深300指数的周数据,采用了向量自回归模型(VAR)的实证研究方法,分析了国内外石油价格与中国股票市场的关系。研究结果显示,中国股市波动与国际油价波动并... 本文选取了2002年1月到2008年底的Brent原油、上海期货交易所燃料油价格和中国沪深300指数的周数据,采用了向量自回归模型(VAR)的实证研究方法,分析了国内外石油价格与中国股票市场的关系。研究结果显示,中国股市波动与国际油价波动并不存在Granger因果关系,但与国内油价波动存在Granger因果关系。中国股市波动与国际油价波动之间存在长期的协整关系,进一步的脉冲效应表明,在国际油价上涨的初期,其对中国股市的影响的正面的,但很快这种影响就转变为负的,并且在较长的期间內不断放大。 展开更多
关键词 国际油价 中国国内油价 中国股票市场 VAR
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基于GED—GARCH模型的中国原油价格波动特征研究 被引量:50
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作者 张跃军 范英 魏一鸣 《数理统计与管理》 CSSCI 北大核心 2007年第3期398-406,共9页
本文采用中国大庆原油价格日平均交易数据,建立了基于GED分布的GARCH(1,1)、GARCH-M(1,1)和TGARCH(1,1)三个模型,描述了中国原油价格与国际接轨以来的波动特征。实证结果表明,与国际油价类似,中国原油价格的波动也存在显著的GARCH效应,... 本文采用中国大庆原油价格日平均交易数据,建立了基于GED分布的GARCH(1,1)、GARCH-M(1,1)和TGARCH(1,1)三个模型,描述了中国原油价格与国际接轨以来的波动特征。实证结果表明,与国际油价类似,中国原油价格的波动也存在显著的GARCH效应,但其波动冲击的半衰期要比国际油价短,为5天。而且,中国原油收益率受到预期风险的负向影响,表明中国原油市场并非完全市场化运作,当然这种负向影响程度较小,约为8%。另外,中国原油价格的波动存在显著的杠杆效应,相同幅度的油价下跌比油价上涨对未来油价的波动具有更大的影响,前者是后者的1.7倍左右。最后,基于GED分布的GARCH模型比基于正态分布的GARCH模型能够更好地描述中国原油价格的波动特征,并且具有较好的预测能力。 展开更多
关键词 中国油价 油价波动 GARCH模型 杠杆效应 广义误差分布(GED)
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我国油价为何与国际不同步
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作者 张笑言 《中国经贸》 2016年第4期94-95,共2页
经过了长达几年的油价攀升之后,这两年国际石油价格出现的是持续的情况。但国际石油价格与我们国家的油价价格却形成了明显的对比。中国的成品油价格一直“捍卫”着自己的底线,就算国际油价大幅度下降,中国的成吕油价格铱然如初。都... 经过了长达几年的油价攀升之后,这两年国际石油价格出现的是持续的情况。但国际石油价格与我们国家的油价价格却形成了明显的对比。中国的成品油价格一直“捍卫”着自己的底线,就算国际油价大幅度下降,中国的成吕油价格铱然如初。都在说当前中国经济是与世界接轨并融入到全球一体化浪潮后,为什么单单是石油与国际不同步? 展开更多
关键词 国际油价 中国油价 经济
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从非传统安全角度谈高油价对我国经济的影响
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作者 杨孝青 徐君 《工业技术经济》 北大核心 2008年第6期43-45,共3页
石油安全是国家经济安全和国防安全的的重要保障,我国经济的快速发展导致对石油的需求量不断增加,而国内的石油产量已远远不能满足国内经济发展和人民生活的需要,大量的石油缺口只有依赖进口。美国利用其全球经济霸权和军事霸权基本控... 石油安全是国家经济安全和国防安全的的重要保障,我国经济的快速发展导致对石油的需求量不断增加,而国内的石油产量已远远不能满足国内经济发展和人民生活的需要,大量的石油缺口只有依赖进口。美国利用其全球经济霸权和军事霸权基本控制了中东等世界最主要的石油产地并能有效影响世界石油的定价权,是国际油价不断上涨的重要原因之一。因此,我们从非传统安全角度探讨高油价对我国经济发展的影响,保障国家经济发展和国防安全具有十分重要的意义。 展开更多
关键词 非传统安全 油价中国经济 石油安全
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关于江苏省私人汽车拥有量的影响因素的因子分析 被引量:1
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作者 马璐寒 《价值工程》 2019年第26期263-265,共3页
本文将通过研究江苏省城镇人口数,江苏公路里程数,江苏城镇家庭人均可支配收入,江苏社会零售品消费总额,中国油价,江苏汽车产量这六个因素与江苏省私人汽车拥有量之间的关系,对其建立因子分析模型,做出有意义的分析,并从其中发现问题,... 本文将通过研究江苏省城镇人口数,江苏公路里程数,江苏城镇家庭人均可支配收入,江苏社会零售品消费总额,中国油价,江苏汽车产量这六个因素与江苏省私人汽车拥有量之间的关系,对其建立因子分析模型,做出有意义的分析,并从其中发现问题,提出意见。使江苏省私人汽车市场能够更好的的发展。 展开更多
关键词 私人汽车拥有量 因子分析 影响因素 中国油价
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Study of Major Effects on China's Inflation 1994-2009 Using GETS Modeling
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作者 伍戈 《China Economist》 2012年第1期56-66,共11页
Applying "General to Specific" (GETS) modeling and using PcGets software, this paper studies the relationship between inflation, money supply, output gap, the exchange rate and crude oil prices in China. The empir... Applying "General to Specific" (GETS) modeling and using PcGets software, this paper studies the relationship between inflation, money supply, output gap, the exchange rate and crude oil prices in China. The empirical study supports the view that a long-term positive correlation exists between inflation and money supply. However, inflation is not an entirely "monetary phenomenon. "In addition to money supply, other variables also affect inflation. Similarly, there is significant correlation between output gap and inflation. In addition, we cannot overlook the impact of exchange rates on inflation. 展开更多
关键词 INFLATION money supply output gap
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China's Oil Majors Hit by Falling Prices in First Half
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作者 Wei Haifeng 《China Oil & Gas》 CAS 2015年第3期5-8,共4页
China’s national oil and gas companies saw their profits slump during the first six months of 2015,with the levels falling to the lowest in five years,according to financial reports.The first-half reports for China’... China’s national oil and gas companies saw their profits slump during the first six months of 2015,with the levels falling to the lowest in five years,according to financial reports.The first-half reports for China’s"big three" oil companies - China National Petroleum (CNPC), China Petrochenlical Corporation, as Sinopec. and China National Offshore Oil Corporation also known Corporation (CNOOC) - showed that CNPC's profit tell by more than 60 percent to 25.4 billion yuan (US$3.98 billion), Sinopec by 22 percent to 25.4 billion yuan, and CNOOC by more than 50 percent to 14.7 billion yuan. 展开更多
关键词 companies prices CNPC falling crude Russia cubic profit Petroleum downstream
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Analysis of China's Oil and Gas Policy in 2015 被引量:1
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作者 Chen Jiaru 《China Oil & Gas》 CAS 2016年第1期8-15,共8页
The reforms in oil and gas sector have been accelerated in 2015. The reform of mineral rights has begun and 6 oil and gas exploration zones in Xinjiang Autonomous Region have served as the tender pilots, breaking thro... The reforms in oil and gas sector have been accelerated in 2015. The reform of mineral rights has begun and 6 oil and gas exploration zones in Xinjiang Autonomous Region have served as the tender pilots, breaking through the requirements on the resources varieties, exploration phase and enterprise qual!fication. The right of importing and using of the crude oil has been gradually relaxed and 13 local refineries have obtained the right to use imported crude oil of 55.1888 million tons per year. The natural gas price for non-residential use was unified and a universal price was set ~r the incremental supply and existing supply. Tire Shanghai Petroleum and Gas Exchange (SHPGX) was established and laid foundation for the market mechanism to detervnine the price. The government governance has undergone continuous adjustments such as regulating the tax instead of charging the fees, streamlining administration and delegating power to tire lower levels.The Guidelines on Deepening tire Reform of State-owned Enterprises was released, symbolizing the accomplishment of the overall planning ~ the SOE reform. 展开更多
关键词 REFORM Mineral right Right of importing: Exporting and using of crude oil PRICING SOE reform
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Low Oil Prices Gas up Chinese Buyers
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作者 Fu Rong 《China Oil & Gas》 CAS 2015年第3期49-52,共4页
As the downward trend levels out,companies from China are finding big bargains around the globe.A new wave of Chinese outbound oil acquisitions is expected in the second half of 2015 as well-financed Chinese firms tak... As the downward trend levels out,companies from China are finding big bargains around the globe.A new wave of Chinese outbound oil acquisitions is expected in the second half of 2015 as well-financed Chinese firms take advantage of struggling companies while oil prices remain low globally,industry insiders say.The huge drop in oil prices over the past year,from US$110 per barrel in early July of last year to below US$50 by the beginning of 2015, has fundamentally shocked the industry. But the prevailing forecast in the business is for price stabilization. 展开更多
关键词 companies prices barrel globally downward assets finding Sudan Russia sector
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Opportunities and Risks of Natural Gas Investment in China under the Circumstance of Low Oil Prices
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作者 Hu Guosong Li Haidong 《China Oil & Gas》 CAS 2017年第3期44-48,53,共6页
After more than 30 years of rapid growth, the Chinese economy has entered the "new normal" of moderately high growth. Due to the effects of multiple factors, the international oil price has remained consiste... After more than 30 years of rapid growth, the Chinese economy has entered the "new normal" of moderately high growth. Due to the effects of multiple factors, the international oil price has remained consistently low. The low oil price has exerted critical effects on international natural gas investment. At the same time, the market-oriented price mechanism of natural gas in China is gradually taking shape; the concept of low carbon development is widely advocated; and the use of natural gas gains popularity in the city. Such factors provide great opportunities for investment in the natural gas market of China, including boiler coal-to-gas transformation, natural gas distributed energy and natural gas vehicles. However, risks also exist, such as the lower competitiveness of natural gas, its excess production capacity and dwindling consumption in some gas consumption industries, an insufficient driving force for facilitating the coal-to-gas transformation of industrial fuel users, reverse substitution of "coal in place of gas" in some enterprises, nontransparent costs of the downstream link of the natural gas price chain, and mismatches and nonsynchronous adjustments in natural gas prices and electricity prices. 展开更多
关键词 Low oil prices Natural gas market OPPORTUNITIES RISKS
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RIPP Works on Crude Formulation Technique to Grapple with Refiners' Tough Problems
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《China Petroleum Processing & Petrochemical Technology》 SCIE CAS 2016年第4期60-60,共1页
Currently "The Crude Formulation Technique" developed by the SINOPEC Research Institute of Petroleum Processing(RIPP) has passed the technical review sponsored by the Sinopec Corp.This technique by means of adopti... Currently "The Crude Formulation Technique" developed by the SINOPEC Research Institute of Petroleum Processing(RIPP) has passed the technical review sponsored by the Sinopec Corp.This technique by means of adopting the advanced algorithm on the basis of the crude assay data bank and the large crude spectroscopic database can intelligently blend together different kinds of crude oils to obtain multiple crude formulations, the quality of which is quite close to the target crude in a bid to provide technical support to the refining enterprises in the area of crude procurement and sustained property stabilization of crude oils pro-cessed thereby. 展开更多
关键词 crude Petroleum passed refinery refining adopting imported blend formulation switch
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DYNAMIC PRICE MODEL BASED ON TRANSMISSION DELAY——PETROLEUM PRICE FLUCTUATION IN CHINA
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作者 LIU Yifang WANG Yue QIAO Heng 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2014年第3期507-523,共17页
Petroleum is a kind of fundamental energy resource. Its price fluctuation transmits from upper-stream industry to the lower-stream industry as the production factors price changes. And this leads to the price changes ... Petroleum is a kind of fundamental energy resource. Its price fluctuation transmits from upper-stream industry to the lower-stream industry as the production factors price changes. And this leads to the price changes of final consumption. Meantime, due to the cycle of industrial chain, the price changes of lower-stream industry also affect the upper-stream industry in return. This price transmission path is quite complicated. Firstly, it includes both direct and indirect paths; secondly, the transmission process is accompanied with time delay. The traditional input-output price model based on cost-push theory can efficiently solve the first problem when estimating the impact of price fluctuation on the whole price system. However, it neither reflects the dynamic characteristics of price transmission with time nor solves the second problem. To solve this problem, this paper uses the directed weighted network to describe the price transmission among industrial sectors by taking the time-dimension into account, and dynamic price transmission network model is constructed. This model not only describes transmission time delay more accurately, but also calculates the price fluctuation dynamically. On this basis, by utilizing the 2007 Chinese input-output table, this paper conducts empirical analysis on the impact of petroleum price fluctuation on other sectors. The empirical results indicate that the price fluctuation transmission mainly depends on two factors, the orice reaction period Tk and the consumption relationship with petroleum aik. 1) If t 〈 Tk, then the price change of sector k at period t △pkt = 0, the petroleum price fluctuation has not transmitted to the sector k, so the price of sector k remains unchanged. 2) If t 〉 Tk, then Apt 〉 0, and the greater aik, the higher price change rate. 3) If t →∞, it is the same with that in traditional input-output price model. So it can be clearly seen that dynamic price transmission network model is more general than the traditional model, and the traditional model is just an asymptotical special case when time approaches to infinity. Keywords Directed weighted network, input-output price model, petroleum price, transmission time delay. 展开更多
关键词 Directed weighted network input-output price model petroleum price transmission timedelay.
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