基于内生性视角构建联立方程模型，利用全球116个粮食生产国2001—2017年数据，分别从整体和分组两个维度检验农业固定资产投资与全球粮食生产之间关系。结果表明：农业固定资产投资可以有效促进全球粮食增产，其中低收入国家和高收入国家的增产效应要优于中等收入国家。同时粮食产量提高在不同国家组均表现为促进农业固定资产投资增长。此外，粮食价格提高和土地、肥料、农药等投入增加可有效促进粮食增产，而劳动投入增加则反向影响粮食产量。因此，增加农业固定资产投资进而改善农业生产条件是促进全球粮食增产的关键因素，但因各国农业资源禀赋、基础设施条件、经济发展阶段等差异，仍需因地制宜，分类施策。

A simultaneous equation model has been established from the endogenous perspective and the data of 116 grain-producing countries from 2001 to 2017 has been utilized to examine the relationship between agricultural fixed capital investment and global grain production from the holistic dimension and grouping dimension. The results show that agricultural fixed asset investment can effectively promote global grain production increase, and the production increasing effect on low income countries and high income countries outclasses that of middle income countries. In all different country groups, the increase of grain production could promote the growth of agricultural fixed asset investment. In addition, the increase in grain price and the increased investments in land, fertilizer and pesticide could contribute effectively to grain production while the increase in labor input will have the reverse affect on grain output. Therefore, to increase agricultural fixed asset investment and improve agricultural production conditions is the key to promoting global grain production. However, due to the differences in agricultural resource endowment, infrastructure conditions and economic development stages in different countries, it is still necessary to adjust measures to local conditions and implement classified policies.

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