ABSTRACT: First, we propose the nonlinear whole economics and its four basic hypotheses. Second, we research the extensive quantum economics. Third, based on the double solutions with soliton-chaos of nonlinear equations, we discuss the economic meanings: Soliton corresponds to the invariance in economic circulation, and chaos corresponds to corruption and economic crises, etc. The double solutions show the simultaneous existence on determinism and probabilism quantitatively in some nonlinear economic systems. Fourth, entropy economics and circular economics are studied. Fifth, we discuss development cycle and economic crisis. Based on the nonlinear economics, a conclusion is that the cycles are variable, such as political economics exhibits a dual-cycle pattern. Sixth, we search some social sustainable developed patterns. We must apply different methods to study complex economics.
Key Words: economics, nonlinearity, quantum, soliton, chaos, entropy, cycle, crisis.