An Empirical Study On The Reform Of The Corn Storage Policy And The Market Reaction

Since the reform and opening up,China's grain production and circulation system has undergone major changes,and China has self-sufficiency of grain.Because of the rapid growth of economic development,the domestic and foreign food market environment is affected by the overall macroeconomic impact,and the grain circulation environment becomes more and more complex.Especially facing "Three Quantity's Increase" situation in the current food market,this paper analyzes the effect of corn storage policy and the reaction of corn market.It has certain theoretical and practical significance to ensure the corn market supply,stabilize market prices,strengthen the ability to resist risks and eventually ensure the food security of our country.This paper first analyzes the basic characteristics of the current grain storage market and the main problems existing in the current storage system in China.It also expounds the background and the implementation of the temporary storage policy and the new corn storage policy,and analyzes the effect of the policy from the perspective of economics.Then on production,according to the planting characteristics of corn,the area is divided into policy implementation area and non policy implementation area.The basic situation of input and output of corn production and planting in the two regions is compared,and the intuitive data graph is used to analyze the trend of change.Based on the input and output data of corn planting area,average fertilizer input,average labor quantity,average machinery cost and total yield in 2003?2015,the DID model is established to analyze the influence of the storage policy on the production level.Finally on the circulation market,using the monthly data of stocks and price of corn in 2005?2017,this paper studies the influence of the implementation of temporary storage policy in 2008 and the new corn policy in 2016 on the basis of fluctuations analysis.This paper finds that there is great difference in the influence of storage policy implementation in policy implementation area and non policy implementation area.There is more obvious yield-increasing effect,the continually improving farmers'enthusiasm for planting and significant increase in the level of Agricultural Technology.However,the new policy has obvious yield-reducing effect.In the circulation market,the fluctuation of stock and price of market is continuous and unsymmetrical.What's more,the circulation market has undergone structural changes in two turns of reforms of corn storage policy.