Nudging Farmers to Comply With Water Protection Rules – Experimental Evidence From Germany

Nudging Farmers to Comply With Water Protection Rules – Experimental Evidence From Germany
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敦促农民遵守水保护规则——来自德国的实验证据

DOI:
10.1016/j.ecolecon.2018.06.007
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发表时间:
2018
影响因子:
7
通讯作者:
Hirschauer
Hirschauer
中科院分区:
经济学2区
文献类型:
--
作者:
Mußhoff;Hirschauer

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农业施肥产生的氮径流对地表水造成严重的环境破坏。环境和消费者权益倡导者要求政府干预以减轻这些外部性。本研究考察了以轻推为基础的监管策略的影响。我们使用一个激励的单人、多期商业管理游戏作为实验设备,研究了在德国农民样本中,轻推是如何影响他们遵守离水最小距离规则的。我们研究了两种不同的推动方法:一种是用信息和图片显示环境和健康损害,这些损害可能是由于违反了与水的最小距离规则造成的;另一种是用额外的社会比较表明同一地区的大多数农民遵守了这一规则。观察到三个核心实验结果:首先,轻推具有预防作用,不仅减少了不合规参与者的比例,还减少了非法受精的总面积。第二,出乎意料的是,附加社会比较的助推的预防效果并不比仅包含信息和图片的助推更强。第三,尽管轻推总体上有积极作用,但带有社会比较的轻推甚至增加了偏离亚群中不服从行为的严重程度。
Nitrogen runoff from agricultural fertilisation causes serious environmental damage to surface waters. Environmental and consumer advocates demand government intervention to mitigate these externalities. The present study examines the effects of nudge-based regulatory strategies. Using an incentivised single-player, multi-period business management game as an experimental device, we study how nudges affect compliance with the minimum-distance-to-water rule in a sample of German farmers. We investigate two different nudge treatments: a nudge with information and pictures showing environmental and health damages that are presumably caused by breaching the minimum-distance-to-water rule, and a nudge with an additional social comparison suggesting that the majority of farmers in the same region comply with the rule. Three core experimental outcomes are observed: first, nudging has a preventive effect and reduces not only the share of non-compliant participants, but also the total area that is illicitly fertilised. Second, against all expectations, the preventive effect of the nudge with an additional social comparison is not stronger than that of the nudge with information and pictures alone. Third, despite the overall positive effects of nudging, the nudge with social comparison even increased the severity of non-complying behaviour in the deviant subpopulation.
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