Evolution of International Investment Law

The international investment law adapts to the present situation of the international investment. The international economic law has the economical character. Meanwhile, the international investment law also adapts to the basic principle of the international law, especially the principle of the state sovereignty. The development of the economical mutual dependency requires the convergence of the rule of the international economic law, while the principle of sovereignty emphasises the individual interest of the states. The international investment law must take account of both. So in the condition that the state economical systems are different, the rule of the international investment law cannot be formed. It is comprehensive to discuss the international investment law under foe development of the international law and the state economical system.