In the development of all civilizations it is found one fact common to all of them. In 1987–1993 it changes qualitatively the development type of all civilizations, without exception that indicates the achieving a high degree of integration of all countries of the world.

The development of the world economy shows systematic complication of the construction with periodicity in 70 years. The work offers a verbal description of the development of the world economy as a complex social system and non-linear dynamic model that is based on the population growth on the earth and two fundamental laws: the law of conservation of the economic potential of a system and the principle of minimum dissipation of resources that are implemented by system ability to self-organization. The main principles of conducting numerical experiment and the analysis of the findings are studied together with the model.