Yann Algan, Daniel Cohen, Eva Davoine, Martial Foucault, Stefanie Stantcheva, 15 December 2021

During the Covid-19 pandemic, social compliance with non-pharmaceutical interventions has varied within and across nations, and has generally decreased over time. This column uses data from 12 countries between March and December 2020 to show that trust in scientists plays a key role in compliance with and support for non-pharmaceutical interventions and willingness to get vaccinated, while trust in government has a more limited effect. However, when people associate scientists and scientific bodies with government action and political decision-making, it erodes their trust in these scientific institutions.

Pragyan Deb, Davide Furceri, Daniel Jiménez, Siddharth Kothari, Jonathan D. Ostry, Nour Tawk, 13 December 2021

Cross-country health spillovers from vaccine rollouts mean the pandemic will not be over anywhere until it is over everywhere. This column argues that the success of a country’s vaccine deployment in the first half of 2021 was driven by five primary factors: the severity of its pandemic waves in 2020, its procurement strategies, the quantity of locally produced vaccines, the quality of health infrastructure, and vaccine acceptance. Swift and broad administration of vaccines provides a significant boost to health outcomes, particularly in the midst of major outbreaks and accompanied by containment measures. 


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