AJARE 马旺林 郑宏运 | 信息技术采纳对农药和化肥支出的异质性影响：来自中国小麦种植户的证据

Wanglin Ma, Hongyun Zheng. (2021). Heterogeneousimpacts of information technology adoption on pesticide and fertiliser expenditures: Evidence from wheat farmers in China. Australian Journal ofAgricultural and Resource Economics.

Available at: 

https://doi.org/10.1111/1467-8489.12446

摘要：本文利用551个中国小麦种植户的调研数据，分析了移动信息技术采纳对农用化学品支出的影响。与以往分析信息技术采纳和农业投入之间同质关系的研究不同，本文使用工具变量分位数回归方法探讨了智能手机使用对农药和化肥支出的异质性影响。研究发现，智能手机使用对农药和化肥支出的影响存在异质性，且对农药支出的影响大于对化肥支出的影响。具体来说，在最低的20分位点，智能手机使用显著增加了33%的农药支出和18%的化肥支出。然而在较高的60分位点和80分位点，智能手机使用显著降低了36%-39%的农药支出和14%-19%的化肥支出。本文研究表明，通过基于智能手机的信息干预来引导农户的农用化学品使用行为，有利于减少化学农药和肥料的过度使用，从而保护环境和人类健康。

Abstract 

This study examines the impacts of mobile information technology adoption on agrochemical expenditures, using data collected from 551 wheat farmers in China. Unlike previous studies that analyse a homogeneous relationship between the adoption of information technologies and farm input use, in this study, an instrumental variable quantile regression approach is utilised to capture the heterogeneous impacts of smartphone use on pesticide and fertiliser expenditures. Findings reveal that smartphone use affects pesticide and fertiliser expenditures heterogeneously, and its impacts on pesticide expenditure are larger than those on fertiliser expenditure. Specifically, at the lowest 20th quantile, smartphone use significantly increases pesticide expenditure by 33 per cent and fertiliser expenditure by 18 per cent. However, at the higher 60th and 80th quantiles, smartphone use significantly decreases pesticide expenditure by 36–39 per cent and fertiliser expenditure by 14–19 per cent. Our findings suggest that guiding farmers’ agrochemical usage behaviours through smartphone-based information intervention can be a practical strategy to help reduce the excessive usage of chemical pesticides and fertilisers and preserve the environment and human health.

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