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衡量媒体报道的社会收益:气候变化报道如何影响行为

Measuring Social Benefits of Media Coverage: How Coverage of Climate Change Affects Behaviour
The Economic Journal · 2024 · Graham Beattie

中文摘要

现有文献已充分表明,信念和行为可能受到媒体报道的影响。本文研究报纸对气候变化的报道对个人驾驶行为的影响。我通过比较环保倾向文本与怀疑论文本,构建了一个衡量报道基调的指标。随后,我结合这一指标与详细的驾驶模式信息,检验家庭的出行决策是否受到其近期接触到的报道的影响。我发现,采用环保基调的气候变化报道会促使家庭做出环保的出行决策,尤其是在有良好替代选择的情况下。由于驾驶是碳排放的一个主要来源,这些结果揭示了媒体报道的一种潜在外部性。

Abstract

Abstract It has been well documented that beliefs and actions can be affected by media coverage. In this paper, I study the effect of newspaper coverage of climate change on individual driving behaviour. I construct a measure of the tone of coverage based on comparisons between environmental and sceptical texts. I then use this measure, along with detailed information about driving patterns, to test whether households’ travel decisions are affected by the coverage that they have recently received. I find that coverage of climate change that uses an environmental tone causes households to make environmentally friendly travel decisions, particularly when good substitutes are available. Since driving is a major source of carbon emissions, these results illustrate a potential externality of media coverage.
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