世界三大经济即自由经济、生态环境经济和知识经济。这三大经济混然一体，有内在的紧密联系，相互交织在一起。但有因果关系，先有自由经济，后有生态环境经济和知识经济。前者是母，后者是子，但一旦形成母子关系，母体并不因子体成熟而消失，这与生物界的生死因果法则不一样 The three major economies in the world are free economy, eco-economy and knowledge-based economy. These three big economies are mixed together, with their inherent close ties and their mutual intertwining. However, there is a causal relationship between the free economy and the eco-economy and the knowledge-based economy. The former is the mother, the latter is the child, but once the mother-child relationship, the mother does not disappear due to the maturity of the progeny, which is different from the biological world of causality