Impact from Aging of the Population on the Economic System Constituted by Two Factors, Three Departments and Four Categories of Residents—CGE Model Simulation

摘要

A CGE model is built for the economic system constructed by two factors, three departments and four categories of residents and the impact effect of Aging of the population on this economic system is simulated by virtue of computer simulation.The fixed points of the economic system and the impact on distortion of general equilibrium of the economic system are computed by dint of MATLAB software and self-made program (genetic algorithm is adopted). Results: a Aging of the population may change the equilibrium price system (fixed points) of the economic system, the transaction costs of the economic system (in particular costs of property rights), residents' maximum utility and the department's equilibrium quantity through influence on employment resource quantity, demand structure, production structure, residents' real income and so on of the economic system.Conclusion: Aging of the population (Workforce reduction) makes the reduction of social welfare.