Liu, K. ., A. . Koike, and Y. . Mu. “Price Risks and the Lead-Lag Relationship Between the Futures and Spot Prices of Soybean, Wheat and Corn”. Asian Journal of Economic Modelling, vol. 8, no. 1, Mar. 2020, pp. 76-88, doi:10.18488/journal.8.2020.81.76.88.