Research On The Response Of Real Estate Investment To Population Change From The Perspective Of Co-evolution Of Supply And Demand

“Equilibrium” and “Optimal” are the two core ideas of economic growth theory,which means that the supply and demand of each market are equal in every time position,that is,the market is always clear,and the market clearing is always optimal.of.However,as an important part of China's modern urban economy,due to the development of many market factors and the time lag effect of supply,the imbalance between supply and demand has existed for a long time,and led to the inefficiency of resource allocation.Therefore,if we can realize the pricing function of housing through the law of supply and demand in the market,and then achieve the “balanced growth” of the real estate market,it will have positive significance for improving the comparative advantage of the city and promoting the steady development of the economy.In order to explore the specific law of supply and demand in the real estate market,based on the theoretical analysis of the possible co-evolution mechanism of supply and demand in the real estate market,the paper constructs a co-evolution model of supply and demand in the real estate market,and at the national level with different levels of economic development.The co-evolutionary state of supply and demand in the real estate market of cities and provincial capital cities was measured.According to the calculation results,the response mechanism model of the real estate market on the supply side to the demand side is further set,which provides empirical evidence for the effective realization of the supply and demand law in the real estate market.The main research results show that:(1)Whether from theoretical analysis or reality,the supply real estate enterprises and the demand side population in the real estate market are essentially evolutionary,and are contained in a dynamic supply and demand co-evolution system;(2)The coordinated evolution mechanism of the real estate industry and population status composite system in China's national central cities has taken initial shape,and the evolution model is asymmetric reciprocal symbiosis mode,that is,the impact of population status on real estate industry is greater than the impact of real estate industry on population status;(3)The investment of real estate development enterprises in state-level central cities will be affected by population fluctuations such as urban population density,the number of inflows,and the age structure of urban population,among which the number of inflowing populations and the proportion of working-age population to real estate investment The promotion effect is most obvious.Therefore,the steady development of the real estate market should take the balance of market supply and demand as the starting point of the long-term mechanism on the basis of fully considering the “level differences” between different cities.For large cities,the primary problem is the reform of land supply policies to solve the problem of insufficient supply.For small and medium-sized cities,efforts to build core competitiveness and thus increase the attractiveness of the population are crucial tasks.