本文采用了计量经济学方法,利用协整理论和向量误差修正(VEC)模型,对中国粮食成本收益与粮食每亩生产成本、生产资料价格、粮价水平,以及政策支持之间的相互影响及关系进行了实证研究。同时构建VEC非结构化模型进行了各变量的预测,模型短期预测结果显示出较高的预测精度,中长期预测结果也显示出较好的预测稳定性和趋势性。模型填补了我国粮食成本收益建模研究方面的空白。
The paper uses econometrics methodology, makes practical research to relation and influence between China plain cost - effectiveness, average cost each acre, price of material, plain price, and policy support with the theory of cointegration and VEC model. Moreover, we estabilishe unstructural VEC model to forecast the development of variables, the result shows good short - term forecasting accuracy and good medium - term and long - term stability and tendency. The model supplies a research gap of China plain cost - effectiveness model.