通过视频小组推广改进小农农业

IF 5.1 1区 经济学 Q1 ECONOMICS
Tushi Baul , Dean Karlan , Kentaro Toyama , Kathryn Vasilaky
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引用次数: 0

摘要

大规模提供农业建议带来了操作上的挑战。如果重复的内容能加强接受者的学习,从而提高采用率,那么技术可能会有所帮助,但由于定制和人际互动有限,技术可能会降低效果。我们测试了与印度女性农民分享的视频,作为对标准人工推广服务的补充,促进了气候智能实践--系统水稻集约化。平均治疗效果很大,但由于结果非正态分布,特别是右侧肥尾,因此并不精确。加权量化回归表明,平均治疗效果估计值不精确的原因是农民的产出或产量处于较高的量化水平。对 25%和 50%定量组的量值回归以及贝叶斯分层模型(对多个先验值都是稳健的)都显示出积极的治疗效果,而两种子治疗方法(一种是通过采用强化劳动力成本信息,另一种是通过介绍角色模型来激励采用)导致对产出的估计治疗效果更高。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Improving smallholder agriculture via video-based group extension

Providing agricultural advice at scale poses operational challenges. Technology may help if repeating content reinforces learning for recipients and thus improves adoption, but risks reducing efficacy given limited customization and human interaction. We tested videos shared with female farmers in India as a supplement to standard human-provided extension services promoting a climate-smart practice, System Rice Intensification. The average treatment effects are large but imprecise because of non-normally distributed outcomes, specifically fat right tails. Weighted quantile regressions show that the imprecision in estimating an average treatment effect comes from farmers with output or yields in the upper quantiles. Both quantile regressions of the 25% and 50% quantiles and a Bayesian hierarchical model (robust to several priors) reveal positive treatment effects, and two subtreatments, one that reinforces information on labor costs from adoption and a second that presents role models to motivate adoption, lead to even higher estimated treatment effects on output.

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来源期刊
CiteScore
8.30
自引率
4.00%
发文量
126
审稿时长
72 days
期刊介绍: The Journal of Development Economics publishes papers relating to all aspects of economic development - from immediate policy concerns to structural problems of underdevelopment. The emphasis is on quantitative or analytical work, which is relevant as well as intellectually stimulating.
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