The Study On Function Of Housing Security Of Housing Accumulation Fund Based On System Simulation

Housing problems has been focused on in recent years, and as one of the housing security system, housing accumulation fund system has been more attention. Since it is established in1991, the accumulation fund system contributes to China’s housing reform, but, at the same time, there are also inadequacies.This research starts in some aspects such as resident GDP, resident disposable income, the amount of housing accumulation fund, the Price income ratio, real estate market, macroeconomic environment ect., uses AnyLogic simulation platform, according to the relevant data of 《Liaoning Province Statistical Yearbook》2001-2010, chooses21variables such as real estate prices, the amount of housing accumulation fund, to build the System Dynamic model of housing accumulation fund’s housing security function. It mainly observes the range of Price income ratio and housing accumulation fund amount ratio of the total price to analyze housing accumulation fund’s housing security function. According to1benchmark experiment and3simulation experiment, conclusions are as follows:1. Housing accumulation fund has a stronger role in promoting housing security function;2. Housing accumulation fund’s housing security function is good currently, but the price income ratio will exceed the reasonable range after the year2016;3. Take20%as the payment ratio can make the price income ratio of majority years in reasonable range;4. The price income ratio will grow significantly if the residential area per capita of Shenyang City is adjusted to the national average.5. The price income ratio can only be in reasonable range in majority years when the key parameters of housing accumulation fund are adjusted.According to the results of simulation experiments, the author make4new recommendations to improve the housing accumulation fund’s housing security function as follows:expand the coverage of housing accumulation fund; implement dynamic contribution rate and contribution base; control residential area per capita; build supporting systems.