Brauner et al
https://www.medrxiv.org/content/10.1101/2020.05.28.20116129v4
“We find that closing schools and universities was highly effective; that banning gatherings and closing high-risk businesses was effective, but closing most other businesses had limited further benefit; and that many countries may have been able to reduce R below 1 without issuing a stay-at-home order.”
Brauner et al
https://science.sciencemag.org/content/early/2020/12/15/science.abd9338
“Closing all educational institutions, limiting gatherings to 10 people or less, and closing face-to-face businesses each reduced transmission considerably. The additional effect of stay-at-home orders was comparatively small.”
Eran Bendavid et al
https://onlinelibrary.wiley.com/doi/10.1111/eci.13484
“While small benefits cannot be excluded, we do not find significant benefits on case growth of more restrictive NPIs. Similar reductions in case growth may be achievable with less‐restrictive interventions.”
Nils Haug et al
https://www.nature.com/articles/s41562-020-01009-0
“Our results indicate that a suitable combination of NPIs is necessary to curb the spread of the virus. Less disruptive and costly NPIs can be as effective as more intrusive, drastic, ones (for example, a national lockdown).”