改善农业投入的投资不常见非洲的农民农民。一个屏障可能受到正式储蓄的限制。这是第一次使用随机对照试验来评估使用移动货币作为促进农业投资的工具的影响。为此目的，我们设计并开展了一个莫桑比克农村小农样本的现场实验。此样品包括一组主要农民及其最近的农业朋友。我们使用两个交叉随机干预措施。第一个处理能够获得报酬的移动储蓄账户。第二次治疗瞄准最近的农业朋友，并让他们获得与主要农民同行完全相同的干预措施。我们发现报酬的移动储蓄账户提出了移动储蓄，但只有在兴趣的时候。它还增加了肥料的农业投资，尽管其他互补投入的投资没有变化，但与肥料不同。 These results suggest that fertilizer salience in the remunerated savings treatment may have been important to focus farmers' (limited) attention on saving some of their harvest proceeds, rather than farmers being financially constrained by a lack of alternative ways to save. Our results also suggest that the network intervention where farming friends had access to non-remunerated mobile money accounts decreased incentives to save and invest in agricultural inputs, likely due to network free-riding because of lower transfer costs within the network. Overall this research shows that tailored mobile money products can be used effectively to improve modern agricultural technology adoption in countries with very low agricultural productivity like Mozambique.