Study on foam of Chinese corn futures price and its influencing factors
Taking the daily closing price of Chinese corn futures from June 1,2020 to September 1,2023 as the panel data,this paper analyzes the existence and duration of Chinese corn futures price foam through the SADF,GSADF and BSADF test methods.We empirically tested the influencing factors of Chinese corn futures price foam with the static panel model and dynamic panel model.The results show that there are four foam in the price of Chinese corn futures market during the observation period,of which the price foam lasts the longest from September 2022 to November 2022(64 days),from August 2023 to September 2023,the corn futures price foam lasts for a short time(31 days).Among the various influencing factors of Chinese corn futures price foam,the relationship between temporary corn purchase and storage policy,climate factors and Chinese corn futures price foam is negatively correlated.The fluctuation of pig market price,soybean price and African swine fever are positively correlated with the foam of Chinese corn futures price.
Chinese corn futuresprice foamtemporary collection and storage policy for cornclimate factors