英文文献:Estimating the Implicit Value of Crop Stubble as a Barrier to Technology Adoption in Morocco-估计作物残茬作为技术采用障碍的潜在价值
英文文献作者:Magnan, Nicholas,Larson, Douglas M.
英文文献摘要:
For mixed cereal-livestock farmers, cereal production provides a bundle of goods. Grain is consumed by the household or sold at market, and crop residues are used as livestock feed. The straw component of crop residue can be bought and sold at market and therefore has a well-established local market price. Crop stubble, the portion of the crop residue left on the ground, is generally not traded and therefore has no market price. Some agricultural technologies require farmers to forgo using crop stubble as feed, and cultivation of high value crops entails sacrificing residue production altogether. In this paper we apply a structural econometric model to household data from Morocco to estimate the implicit value of crop stubble. We use a sample splitting technique to investigate differences in the value of this resource and find that it is significantly higher for smaller farmers, who therefore face an even larger barrier to technology adoption.
对于混合种植谷物和家畜的农民来说,谷物生产提供了一捆货物。粮食由家庭消费或在市场上出售,作物残渣被用作牲畜饲料。作物残渣中的秸秆成分可以在市场上买卖,因此具有良好的当地市场价格。作物残茬是作物残留在地上的部分,一般不进行交易,因此没有市场价格。一些农业技术要求农民放弃使用作物残茬作为饲料,而种植高价值作物需要牺牲残茬产量。本文将结构计量模型应用于摩洛哥的家庭数据,对作物留茬的隐性价值进行估计。我们使用样本分割技术来调查这种资源的价值差异,发现小农户的价值显著更高,因此他们在技术采用上面临更大的障碍。


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