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噪声与学习:来自印度的证据

Noise and Learning: Evidence from India
Journal of the Association of Environmental and Resource Economists · 2026 · Arzi Adbi、Sumit Agarwal、Pulak Ghosh

中文摘要

尽管噪声污染严重,但关于噪声对发展中经济体学习影响的实证研究一直较为稀少。我们通过分析印度监测站记录的噪声污染的时空变化,以及各学校高风险12年级考试中的学业表现,来考察这一问题。我们发现,考试季度内噪声天数每增加十个百分点,12年级男生的不及格率上升2.3%。这一模式并非性别中性,因为未观察到噪声污染与女生不及格率之间的关联。我们未发现非考试月份记录的噪声污染有任何影响。通过记录噪声污染如何阻碍印度的学习,并揭示认知负担这一解释,我们的研究凸显了发展中经济体人力资本积累中一个被忽视的威胁,并强调了将噪声污染缓解策略纳入教育和城市政策的重要性。

Abstract

Despite high noise pollution, empirical research on the impact of noise on learning in developing economies has been sparse. We investigate this question by analyzing spatial-and-temporal variation in noise pollution recorded by monitoring stations in India and academic performance in high-stakes Class 12 examinations across schools. We find that a ten-percentage-point increase in noisy days during the exam quarter is associated with a 2.3 percent increase in the failure rate of Class 12 boys. This pattern is not gender-neutral, as no association between noise pollution and failure rate is observed for girls. We do not find any effect of noise pollution recorded during nonexam months. By documenting how noise pollution hinders learning in India and shedding light on cognitive burden explanation, our study highlights an overlooked threat to human capital accumulation in developing economies and underscores the importance of integrating noise pollution mitigation strategies into education and urban policies.
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