Study on coal industry's influence of the coal stock

The paper on the foundation of the analysis coal role in inventory, using system dynamics software, established model and simulated, the policy experiment of model shows, when the inventory ratio is rising, vibration tends to gently. Through sensitivity simulation of the inventory ratio, shows:According to the delay of expect demand and supply of coal, policy maker can determine reasonable coal inventory, the reasonable coal inventory of Chinese coal supply should be 6%~8%.