文章摘要：
Using a variant of the Rosen-Roback model of inter-city migration that incorporates public access to air quality information, we demonstrate that information constraints create a wedge between revealed and true hedonic prices for pollution that depends upon individuals’ perception biases. We empirically test our theoretical predictions by leveraging the unexpected disclosure of PM2.5 data in China. We find that migration decisions become much more responsive to pollution and that the hedonic price of avoiding PM2.5 exposure nearly doubles – from 171 to 336 Chinese Yuan – in response to the information shock. Our results highlight the role of imperfect information in migration decisions and its impact on non-market valuation in countries where public access to information is restricted.
中文简介：
本文研究发现空气污染会导致人们离开污染严重的城市，从而导致污染严重的城市不得不通过更高的工资及低廉的房价来吸引人口。我们利用中国公开PM2.5数据的政策实验来探讨信息在估计人们对洁净空气边际支付意愿中的作用，研究发现有限的信息会导致经济学家低估人们对洁净空气的边际支付意愿。在污染信息公开之前，人们对一单位洁净空气的边际支付意愿为仅为171元，在污染信息公开之后，提高到了336元。本文研究证明了在不完全信息情况下利用传统Rosen-roback模型估计公共物品估计的经济价值可能存在偏误。
原文链接：
https://www.sciencedirect.com/science/article/abs/pii/S0304387823000342