2009年至2010年,希腊、葡萄牙、意大利、爱尔兰等欧元区国家紧随华尔街金融海啸,接连爆发主权债务危机。之后危机不断扩大至整个欧洲。在此次债务危机中,各国从自身经济利益出发,站在了不同阵营,采取了不同的态度。博弈论主要研究理性的人在面对各种冲突行为如何选择的理论。从博弈论角度出发,各国以自身利益出发所采取的态度具有必然性。 From 2009 to 2010, Greece, Portugal, Italy, Ireland and other euro-zone countries followed the Wall Street financial tsunami, causing a series of sovereign debt crises. After the crisis continued to expand throughout Europe. In this debt crisis, all countries took their own economic interests and stood in different camps and took different attitudes. Game theory mainly deals with the theory of rational people in the face of various conflicts. From a game theory point of view, all countries take their own interests to take the attitude of necessity.