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Behavioral responses and the impact of new agricultural technologies: Evidence from a double-blind field experiment in Tanzania
Di Falco, Salvatore; Other authors; Bulte, Erwin; Beekman, Gonne; Hella , Joseph; Lei, Pan
发表日期2014-03-21
出版年2014
语种英语
摘要

Bulte, Erwin, Gonne Beekman, Salvatore Di Falco, Joseph Hella and Pan Lei. 2014. “Behavioral Responses and the Impact of New Agricultural Technologies: Evidence from a Double-blind Field Experiment in Tanzania.” American Journal of Agricultural Economics 96:5: .
Download reference Doi:10.1093/ajae/aau015

Randomized controlled trials (RCTs) in the social sciences are typically not double-blind, so participants know they are “treated” and will adjust their behavior accordingly. Such effort responses complicate the assessment of impact.

To gauge the potential magnitude of effort responses we implement a conventional RCT and double-blind trial in rural Tanzania, and randomly allocate modern and traditional cowpea seed varieties to a sample of farmers. Effort responses can be quantitatively important—for our case they explain the entire “treatment effect on the treated” as measured in a conventional economic RCT. Specifically, harvests are the same for people who know they received the modern seeds and for people who did not know what type of seeds they got; however, people who knew they had received the traditional seeds did much worse. Importantly, we also find that most of the behavioral response is unobserved by the analyst, or at least not readily captured using coarse, standard controls.

主题Agriculture
URLhttps://efdinitiative.org/publications/behavioral-responses-and-impact-new-agricultural-technologies-evidence-double-blind
来源智库Environment for Development Initiative (Sweden)
资源类型智库出版物
条目标识符http://119.78.100.153/handle/2XGU8XDN/137966
推荐引用方式
GB/T 7714
Di Falco, Salvatore,Other authors,Bulte, Erwin,et al. Behavioral responses and the impact of new agricultural technologies: Evidence from a double-blind field experiment in Tanzania. 2014.
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