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斩断特殊利益的根源:来自巴西亚马逊的证据

Cutting special interests by the roots: Evidence from the Brazilian Amazon
Journal of Public Economics · 2022 · Arthur Amorim Bragança、Ricardo Dahis

中文摘要

政府政策既可能直接影响经济结果,也可能通过影响政治激励而间接产生作用。本文考察PPCDAm对在巴西亚马逊地区活动的一个强大特殊利益集团——农场主——行为的影响。PPCDAm是一套集中化的环境政策,有效提高了非法毁林的预期成本。我们采用不同的识别策略发现,在这套政策实施后,由具有农场主身份的政治家执政的市镇,其毁林、温室气体(GHG)排放和暴力的下降幅度均大于由其他政治家执政的市镇。我们的研究结果提示,PPCDAm对政治激励产生了间接且持久的影响,从而放大了其对环境和社会结果的影响。

Abstract

Government policies may impact economic outcomes directly but also indirectly through effects on political incentives. This paper examines the effects of the PPCDAm – a centralized set of environmental policies that effectively raised the expected cost of illegal deforestation – on the behavior of a powerful special-interest group operating in the Brazilian Amazon: farmers. Using different identification strategies, we document that municipalities governed by farmer politicians experienced larger declines in deforestation, greenhouse gas (GHG) emissions, and violence than municipalities governed by other politicians after this set of policies was implemented. Our findings suggest the PPCDAm had indirect and persistent effects on political incentives, amplifying its impact on environmental and social outcomes.
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