Suppr超能文献

封锁措施的政治经济学:自由媒体重要吗?

The political economy of lockdown: Does free media matter?

作者信息

Besley Timothy, Dray Sacha

机构信息

London School of Economics, United Kingdom.

London School of Economics, United Kingdom and World Bank, United States of America.

出版信息

Eur J Polit Econ. 2023 Jun;78:102361. doi: 10.1016/j.ejpoleco.2023.102361. Epub 2023 Jan 31.

Abstract

This paper studies the role of free media in how governments and the public responded to the COVID-19 pandemic. We first document the presence of policy and behavioural responsiveness during the early phase of the pandemic. Using a panel data of daily COVID-19 deaths, lockdown policies, and mobility changes in 155 countries, we find that governments were more likely to impose a lockdown, and citizens to reduce their mobility, as the initial number of deaths increased. To measure the role of media freedom on responsiveness given endogeneity in death reporting, we simulate deaths from a calibrated SEIR model as an instrument for reported deaths. Using this approach, we find evidence that the presence of free media mattered for the timing of early responses to COVID-19. Responsiveness to deaths was limited to citizens in free-media countries, and accounted for 40% of the difference in lockdown decision and mobility changes between free-media and censored-media countries. In support of the role of free media, we show that differences in responsiveness are not explained by a range of other country characteristics such as the level of income, education or democracy. We also find evidence that citizens with access to free media were better informed about the pandemic and had more responsive levels of online searches about COVID-19, supporting the view that free media served to inform the public on the risks of COVID-19.

摘要

本文研究了自由媒体在政府和公众应对新冠疫情过程中所起的作用。我们首先记录了疫情早期阶段政策和行为的响应情况。利用155个国家每日新冠死亡病例、封锁政策及流动性变化的面板数据,我们发现随着初始死亡病例数增加,政府更有可能实施封锁,公民也更有可能减少出行。为衡量在死亡报告存在内生性情况下媒体自由对响应的作用,我们将校准后的SEIR模型模拟出的死亡病例作为报告死亡病例的工具变量。通过这种方法,我们发现有证据表明自由媒体的存在对新冠疫情早期应对的时机至关重要。对死亡病例的响应仅限于自由媒体国家的公民,且占自由媒体国家与受审查媒体国家在封锁决策和流动性变化方面差异的40%。为支持自由媒体的作用,我们表明,响应差异无法用一系列其他国家特征来解释,如收入水平、教育程度或民主程度。我们还发现有证据表明,能够接触到自由媒体的公民对疫情有更充分的了解,且对新冠疫情的在线搜索响应程度更高,这支持了自由媒体向公众通报新冠疫情风险的观点。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/68a6/9886394/f84ebd39b33e/gr1_lrg.jpg

文献检索

告别复杂PubMed语法,用中文像聊天一样搜索,搜遍4000万医学文献。AI智能推荐,让科研检索更轻松。

立即免费搜索

文件翻译

保留排版,准确专业,支持PDF/Word/PPT等文件格式,支持 12+语言互译。

免费翻译文档

深度研究

AI帮你快速写综述,25分钟生成高质量综述,智能提取关键信息,辅助科研写作。

立即免费体验