This article aims to evaluate the effects of multi-dimensional interstate competitions on agricultural production, which is achieved using spatial econometrics and model averaging methods. Using panel data, this article finds that interstate agricultural competition ought to be encouraged in the United States due to their positive impacts on spillovers and productivity but should be discouraged in China as it leads to negative spillovers and a decrease in productivity. U.S. agriculture enjoys the benefits of competition thanks to agricultural industrialization and a competitive market, whereas the planned system with government interference found in China has benefits as well as detriments. Acknowledgement :