The seeds of misallocation: Fertilizer use and maize varietal misidentification in Ethiopia

IF 5.1 1区 经济学 Q1 ECONOMICS Journal of Development Economics Pub Date : 2024-08-02 DOI:10.1016/j.jdeveco.2024.103349
Nils Bohr , Tim Deisemann , Douglas Gollin , Frédéric Kosmowski , Travis J. Lybbert
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Abstract

Optimal input allocation in agriculture leverages production complementarities. For example, improved seeds are generally more responsive to fertilizer than traditional seeds. Thus, inaccurate beliefs about whether seeds are improved may result in sub-optimal fertilizer application. We document precisely this pattern using data from Ethiopia that allows us to compare farmer beliefs about their maize seeds with genotyping data that identify the true genetics of these seeds. We find that 15 percent of farmers believe incorrectly that they are using improved varieties and use far more fertilizer than farmers who correctly believe that they sowed traditional varieties. Conversely, we find that about 15 percent of farmers believe incorrectly that they are growing traditional material and use far less fertilizer than those farmers who correctly believe that they are growing improved material. We extrapolate from our nationally representative sample to estimate the national-level magnitude of fertilizer misallocation due to incorrect seed beliefs.

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分配不当的种子:埃塞俄比亚的化肥使用和玉米品种识别错误
农业投入的优化分配可利用生产互补性。例如,与传统种子相比,改良种子通常对肥料的反应更灵敏。因此,如果对种子是否经过改良的认识不准确,就可能导致施肥效果不理想。我们正是利用埃塞俄比亚的数据记录了这种模式,通过这些数据,我们可以将农民对玉米种子的看法与确定这些种子真实基因的基因分型数据进行比较。我们发现,15% 的农民错误地认为他们使用的是改良品种,他们使用的肥料远远多于正确地认为他们播种的是传统品种的农民。相反,我们发现约有 15% 的农民错误地认为他们种植的是传统材料,肥料用量远远少于那些正确地认为他们种植的是改良材料的农民。我们从具有全国代表性的样本中推断出由于错误的种子观念而造成的全国化肥分配不当的程度。
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来源期刊
CiteScore
8.30
自引率
4.00%
发文量
126
审稿时长
72 days
期刊介绍: The Journal of Development Economics publishes papers relating to all aspects of economic development - from immediate policy concerns to structural problems of underdevelopment. The emphasis is on quantitative or analytical work, which is relevant as well as intellectually stimulating.
期刊最新文献
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