| Oil price is the most sensitive and important parameter of the production and management decision-making, for each country is fighting for the Oil and for the interests, to participate in the international oil pricing game.Based on graph theory and complex networks theory, build a complex network model of international crude oil prices. Select the average path length, clustering coefficient, degree distribution and three measures of network-centric level as parameters of topology characteristics, use the information of crude oil recoverable reserves, production and consumption to study the topological structure of complex network and the node or organization's pricing influence.First, reveals that international crude oil prices complex network has a small-world feature, with a strong mutual dependence; OPEC has a smaller average path length, the larger clustering coefficient and average degree; non-OPEC's average degree is very small, with relatively loose relationship, IEA's clustering coefficient is big, with the feature of small-world networks; let OPEC as a node, with the higher level of the center of the network, there conducive to the formation of the center of the international oil market; the non-OPEC as a node, with less impact on the internal network of OPEC, each node is difficult to shake the OPEC's dominance in the international crude oil market; IEA as a node, has a large impact on OPEC.Then, found that when use crude oil recoverable reserves as a weight, OPEC country has a greater influence on price; use production as node weight, the United States and Russia, highlighting the price influence, China has price influence when use consumption as a weight; form the point of organizational influence, OPEC has an absolute dominant position, IEA can restrict OPEC's pricing position when use the consumption as a weighting factor, rather than OPEC's influence is weak.Finally, China is seeking international oil market pricing, it is necessary to actively participate in international crude oil market and make cooperation with OPEC or IEA. |
