The Influence Of Price Support Policy Reform On Corn Market Integration

Food security is the king of the country.The high integration of the grain market is conducive to ensuring the timely and effective supply of the grain market,and plays a vital role in the national food security.As the largest grain crop in China,corn is an important raw material for grain,feed and bioenergy production,and plays a light role in national food security.The price support policy is of great significance to promote the continuous increase of grain production and ensure grain security.The strong guidance of the policy will bring a positive impact on the corn market,so it is necessary to study and analyze the integration and operation of the corn market.This study has important theoretical and practical significance for improving the efficiency of grain circulation,stabilizing grain price fluctuation,stabilizing grain production and ensuring food security.Therefore,the corn market integration index is calculated and analyzed based on the monthly price of corn market in 30 provinces in China 2001-2021;secondly,explore the impact of the implementation of the temporary purchase and storage policy and reform on the corn market integration and investigate the heterogeneous impact of the policy implementation and reform on the corn market integration in different regions;finally,summarize the conclusion of this study and make relevant policy suggestions.Through empirical analysis,the following study:First,during 2001-2021,the corn market consolidation index has been in a fluctuating state of fluctuating decline,and the degree of corn market consolidation increased.Overall,the development of China’s corn market gradually shows an integration trend.From the perspective of different regions,the integration level of corn market in policy regions is also continuously improving,but the integration trend is slowing down,and the integration degree of corn market in policy regions is higher than that of corn market in non-policy regions.Second,the temporary purchase and storage policy has a significant negative impact on the corn market integration index,indicating that the temporary purchase and storage policy can significantly promote the corn market integration.Compared with the central and western regions,the temporary purchase and storage policy has a more obvious effect on promoting the integration of the corn market in the eastern region.In addition,the temporary purchase and storage policy is not obvious to the integration of the corn market in inland areas,but has obvious effect on the integration of the corn market in coastal areas.Third,the temporary storage policy reform significantly negatively affects the corn market integration index,indicating that the temporary storage policy reform can also significantly promote the corn market integration;but the impact of the temporary storage policy reform on the corn market integration index in the eastern,central and western regions;moreover,the temporary storage policy reform significantly negatively affects the corn market integration index in inland areas,but the impact on coastal areas,indicating that the temporary storage policy reform is beneficial to promoting the integration of inland corn market.Based on the above research conclusions,this paper proposes the following suggestions: first,build a service-oriented grassroots government and build a modern grain market system;second,strengthen the infrastructure construction and improve the grain transportation capacity;third,increase the investment in scientific research and innovation and promote the corn market integration through economic development.