Corn-Pork Market Price Linkage Analysis

By studying the fluctuation relationship between corn price and pork price,this paper further explores the inter-provincial and regional relationship between corn market,pork market and pig grain market constructed by using time series analysis method,and based on this,it describes the relevant market.network structure.The specific methods are as follows:(1)Explore the Granger causal relationship between the time series of corn prices and pork prices,and use this to build a pig grain market;(2)Quantitatively obtain the inter-provincial and regional corn prices,pork prices,and pig grain markets.(3)Quantitatively obtain the inter-provincial and regional corn prices,pork prices and the network structure of the pig grain market and analyze it in combination with the actual situation.Main contents and conclusions of the project:(1)The multi-test method of time series is used to obtain the Granger reason that corn is pork,and it is found that this test is a one-way reason,and the impulse response is further used to find that the impact of corn price on pork price is as long as 40 periods.(2)Use the support parameters in the association rules to analyze the inter-provincial and regional linkages of corn prices,pork prices,and pig grain markets,including: using MATLAB programs to calculate the inter-provincial and regional support data;,the relationship between corn prices,pork prices and pig grain markets between regions.The results showed that the fluctuations of my country’s corn market,pork market and the established pig grain market all appeared to spread from the central and eastern regions to other regions;the fluctuations radiated from the place of production to the place of production and sales.(3)Use the social network analysis method to describe and analyze the inter-provincial and regional corn prices,pork prices,and the network structure of the pig grain market,including:social network analysis based on inter-provincial and regional support data,and analysis of the corn price network.,pork price network and the three parameters of the constructed pig food market network structure,combined with the actual situation to discuss the influence of each province,city and region on the network nodes,u Make a visual presentation.The results show that in the network structure of my country’s corn network,pork network and pig food network,the nodes in the central and eastern regions play a more important role in the network.