《Land Use Policy》| 时间偏好与绿色农业技术采用:来自中国稻农的实地证据

摘要

绿色农业技术不仅可以缓解土壤肥力的退化，还可以提高小农的农业生产力。本文以秸秆还田为例，在中国农村进行实验，直接测度农民的时间偏好，试图评估时间偏好对农民技术采用行为的贡献。此外，本研究旨在评估生产规模对农民时间偏好和技术采用的调节作用。本研究是对绿色农业技术采用影响因素研究的延续。结果表明，时间偏好显著降低了技术采用;特别是，更偏向于现在的农民采用技术的比例更低。这是因为贴现率较低的农民对未来收入更加敏感。进一步分析表明，与小规模农户相比，大规模农户更有可能采用绿色技术。我们认为，这是因为大规模农民采用绿色农业技术将获得更多的收益，从而对未来的高利润更加敏感。此外，生产规模的增加可以降低时间偏好对农户技术采用的抑制作用，即规模经济在农户的时间偏好和技术采用之间起调节作用。总体而言，本研究为绿色农业技术推广提供了微观基础和政策建议，并为政府如何制定相关政策促进绿色农业发展提供了启示。

关键词

时间偏好；生产规模；绿色农业技术；稻农

Abstract

Green agricultural technology has the potential to not only alleviate the degradation of soil fertility, but also to improve the agricultural productivity of smallholders. In this paper, taking straw incorporation as an example, experiments were conducted in Chinese villages to directly measure the time preferences of farmers, and an attempt was made to evaluate the contribution of time preferences to farmers’ technology adoption behavior. Furthermore, this research aims to assess the moderating role of production scale between the farmer’s time preferences and technology adoption. This study is a continuation of previous studies on factors influencing green agricultural technology adoption. The results show that time preferences significantly reduce technology adoption; in particular, farmers who are more present-biased have a lower proportion of technology adoption. This is because farmers with lower discount rates are more sensitive to future income. Further analysis indicates that compared with small-scale farmers, large-scale farmers are more likely to adopt green technology. It is posited that this occurs because large-scale farmers will gain more benefits by adopting green agricultural technology, and thus, they will be more sensitive to high profits in the future. Moreover, the increase of production scale can reduce the inhibitory effect of time preferences on farmers’ technology adoption, which means that scale economies play a moderating role between the farmer’s time preferences and their technology adoption. Overall, this research provides a micro foundation and policy recommendations for green agricultural technology promotion and sheds light upon how the government can formulate relevant policies to promote green agricultural development.

Keywords

Time preferences；Production scale；Green agricultural technology；Rice farmers

《Land Use Policy》

《土地利用政策》是一份国际性的跨学科期刊，关注城市和农村土地利用的社会、经济、政治、法律、物理和规划方面。它为来自不同学科和利益集团的思想和信息交流提供了一个论坛，这些学科和利益集团必须结合起来以制定有效的土地利用政策。该杂志通过主要的评论文章和较短的观点文章来研究发达国家和发展中国家的地理、农业、林业、灌溉、环境保护、住房、城市发展和运输方面的问题。

原文链接 link 

https://www.sciencedirect.com/science/article/pii/S0264837721003501

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