国际垄断同盟与区域经济一体化，既存在着内在的联系，又有相应的变化。从内因看，这些变化是由生产力的发展，科学技术的进步，经济结构的软化所决定的；从外因分析，资本主义制度的自我扬弃为其变化起到了加速作用。欧共体的产生、发展，反映了从国际垄断同盟到区域经济一体化这一发展和变化的全过程 International monopoly alliance and regional economic integration, there are both intrinsic link, but also the corresponding changes. From an internal perspective, these changes are determined by the development of productive forces, the progress of science and technology and the softening of the economic structure. From the external factor analysis, the self-sublation of the capitalist system has accelerated its changes. The emergence and development of the EC reflect the whole process of development and change from the international monopoly league to regional economic integration