Farm machinery use and maize yields in China: an analysis accounting for selection bias and heterogeneity,The Australian Journal of Agricultural and Resource Economics

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Farm machinery use and maize yields in China: an analysis accounting for selection bias and heterogeneity
The Australian Journal of Agricultural and Resource Economics ( IF 3.2 ) Pub Date : 2020-07-24 , DOI: 10.1111/1467-8489.12395
Xiaoshi Zhou ₁ , Wanglin Ma ₂ , Gucheng Li ₃ , Huanguang Qiu ₄

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Crop production in developing and emerging countries is increasingly dependent on the usage of farm machinery. However, it remains unclear whether low‐productive and high‐productive farmers benefit equally from farm machinery use. To address the research gap, this study examines the potential heterogeneous effects of farm machinery use on maize yields, using an unconditional quantile regression model and survey data from China. We employ a control function approach to address the selection bias issue associated with farm machinery use. The empirical results show that the use of farm machinery significant increases maize yields for all the selected quantiles (except for the 80th quantile); the low‐productive farmers tend to benefit more from farm machinery use relative to their high‐productive counterparts; and farm machinery use reduces the inequality and variability of maize yields.

更新日期：2020-07-24

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