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Effects of industrial air pollution on the technical efficiency of agricultural production: Evidence from China

机译：工业空气污染对农业生产技术效率的影响：来自中国的证据

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With the increase in industrial plants in the rural areas of developing countries, the effects of industrial air pollution on the technical efficiency of agricultural production have attracted considerable attention. However, although some studies have investigated the effects of air pollution on crops' yields, only few of them have focused on how industrial air pollution affects the relationships among production factors and their technical efficiency. Using survey data collected from southwestern China, this paper analyses the effects of point-source air pollution on rice production by incorporating air pollution as an input in a translog production function. Our findings indicate that industrial air pollution lowers the marginal products of factors, alters the relationships of labour-capital and chemical-capital from complementarity to substitution, and changes the seed-chemical relationship from substitution to complementarity. Furthermore, the complementary elasticities of labour-chemical and labour-seed are reduced, whereas that of capital-seed is improved. Without considering the changes in the production function, the technical efficiency estimated using the traditional stochastic frontier analysis method appears to be overestimated compared with that estimated using a modified measure. The understanding of the effects of industrial air pollution on technical efficiency will help researchers in making a sound estimation of agricultural loss and provide helpful insights for policy-makers.
机译：随着发展中国家农村工业厂的增加，工业空气污染对农业生产技术效率的影响引起了相当大的关注。然而，虽然有些研究已经调查了空气污染对作物产量的影响，但其中只有很少的人侧重于工业空气污染如何影响生产因素之间的关系及其技术效率。本文采用了从中国西南部收集的调查数据，通过将空气污染作为翻译生产功能的输入，分析了点源空气污染对水稻生产的影响。我们的研究结果表明，工业空气污染降低了因素的边际产品，改变了劳动资本和化学资本与替代的互补的关系，并将种子化学关系从替代到互补性。此外，减少了劳动化学和植物种子的互补弹性，而资本种子的互补弹性得到改善。不考虑生产功能的变化，与使用修改测量的估计相比，使用传统的随机前沿分析方法估计的技术效率似乎高估。了解工业空气污染对技术效率影响的影响将有助于研究人员对农业损失的良好估算，并为政策制定者提供有用的见解。

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