期刊
AUSTRALIAN JOURNAL OF AGRICULTURAL AND RESOURCE ECONOMICS
卷 64, 期 4, 页码 1282-1307出版社
WILEY
DOI: 10.1111/1467-8489.12395
关键词
farm machinery use; maize yield; UQR model; control function approach; China
资金
- research fund support for Young Teachers of School of Economics and Management, Nanjing University of Science and Technology [JGQN2010]
- National Natural Science Foundation of China [51711520318, 71673290, 71873050]
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.
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