The World Feed-Grains Trade Model: Specification, Estimation, and Validation
介绍了由农业与农村发展中心开发的世界饲料谷物贸易模型，该模型通过供需跨价格联系与小麦、大豆模型联动，求解均衡价格、供需量和净贸易，对研究全球农产品贸易的学者有参考价值。
The feed-grains trade model is one of the three models in the world trade modeling system developed, updated, and maintained by the Center for Agricultural and Rural Development (CARD). The other two commodity trade models are for wheat and the soybeans complex. The three world models are related through cross-price linkages in the supply and demand components of these models, yet each model can be solved independently. In general, however, all three trade models are solved iteratively to obtain a simultaneous solution. Equilibrium prices, quantities of supply and demand, and net trade are determined by equating excess demands and supplies across regions and explicitly linking prices in each region to a world reference price.