The goal of this article is to answer two questions: Has world agricultural convergence occurred? If not, how can this goal be fulfilled? This article introduces a model averaging method to consider both a parametric and a semi-parametric SFA model to better estimate technical efficiency. Then, three types of convergence tests are employed to check if world agricultural catch-up occurs and to determine the degree of convergence across different groups of countries. The empirical results on a balanced panel of 126 countries from 1970–2014 show that world agricultural convergence has not occurred. This article then investigates the situations in different groups of countries and discusses how to use international trade, irrigation system, and structural transformation to improve agricultural efficiency and to diminish the efficiency gap among different countries in the future.

本文的目的是回答两个问题：世界农业是否发生了趋同？如果没有，如何实现这个目标？本文介绍了一种模型平均方法，以同时考虑参数和半参数 SFA 模型，以更好地估计技术效率。然后，采用三种类型的收敛测试来检查世界农业是否发生追赶，并确定不同国家组的收敛程度。1970-2014 年对 126 个国家的平衡面板的实证结果表明，世界农业趋同尚未发生。然后本文调查了不同国家组的情况，并讨论了如何利用国际贸易、灌溉系统、