In 1995, Barrett studied and analyzed the possible cross breed arbitrage opportunities of corn, soybean and other varieties, and found that there are certain arbitrage opportunities in agricultural products. However, due to the different characteristics of agricultural products and the different seasonal variation laws, the arbitrage opportunity selection time cycle and investment stability may be different, but in a short time in the observation period, soybean There is a long-term equilibrium relationship with the subsidiary products, and the fluctuation of the price difference is affected by the weather changes and seasonal laws.<br>
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