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首页> 外文期刊>Journal of Development Economics >A new spin on an old debate: Errors in farmer-reported production and their implications for inverse scale - Productivity relationship in Uganda
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A new spin on an old debate: Errors in farmer-reported production and their implications for inverse scale - Productivity relationship in Uganda

机译：旧辩论的新旋转：农民报告的生产中的错误及其对乌干达逆量表的影响 - 乌干达的生产力关系

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摘要

Based on a two-round household panel survey conducted in Eastern Uganda, this study shows that the analysis of the inverse scale-productivity relationship (IR) is highly sensitive to how plot-level maize production is measured. While farmer-reported production-based plot-level maize yield regressions consistently lend support to the IR, the comparable regressions estimated with maize yields based on sub-plot crop cutting, full-plot crop cutting, and remote sensing point towards constant returns to scale, at the mean as well as throughout the distributions. In deriving the much-debated coefficient for GPS-based plot area, the maize yield regressions control for objective measures of soil fertility and edge effects at the plot-level, as well as time-invariant household- and parcel-level unobserved heterogeneity in select specifications. The core finding appears to be driven by over-estimation of farmer-reported maize production vis-a-vis their crop cutting-based counterparts, particularly in the lower half of the plot area distribution.
机译：该研究基于在东乌干达东部进行的两轮家庭面板调查，本研究表明，对逆量表 - 生产力关系（IR）的分析对测量绘图级玉米生产的典型玉米生产非常敏感。虽然农民报告的基于生产的地位级玉米产量回归始终如一地借给IR的支持，但基于亚图庄稼切割，全图作物切割和遥感点估计的比较回归估计玉米产量，朝向规模持续返回的遥感点，在均值和整个分布中。在得出基于GPS的地区的较多争议的系数，玉米产量回归控制对情节级别的土壤肥力和边缘效应的客观测量，以及选择的时间不变的家庭和包裹水平的异质性规格。核心发现似乎是通过过度估计农民报告的玉米生产VIS-A-VI基于作物切割的对应物的驱动，特别是在绘图区域分布的下半部分。

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