This paper studies the relationship between geographic heterogeneity and technology adoption in the context of the direct planting system (DPS) in Brazil. The DPS is a no-till farming technique that increases productivity and decreases soil degradation. However, it requires adaptation to local conditions to be profitably used. Combining detailed geographic and agricultural data, we show that geographic heterogeneity reduces DPS adoption. This effect is robust to the inclusion of controls and not observed for technologies that do not require local adaptation. These findings are consistent with models in which geographic heterogeneity increases the cost of adapting technologies to local conditions. (JEL O13, Q55)

中文翻译：

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地理异质性和技术采用：来自巴西的证据

本文研究了巴西直接种植系统 (DPS) 背景下地理异质性与技术采用之间的关系。DPS 是一种免耕耕作技术，可提高生产力并减少土壤退化。然而，它需要因地制宜，才能有利可图。结合详细的地理和农业数据，我们表明地理异质性会降低 DPS 的采用。这种影响对于包含控制是稳健的，对于不需要本地适应的技术则没有观察到。这些发现与模型一致，其中地理异质性增加了使技术适应当地条件的成本。(JEL O13, Q55)