If a 15% rise in share of pop wearing masks cuts daily growth of COVID cases by c 1% &

If a 15% rise in share of pop wearing masks cuts daily growth of COVID cases by c 1% & avoids a lockdown that would cost 5% GDP -> one American wearing a mask for a day prevents fall in GDP of GDP of $56.14 at cost of 50 cent cost for the mask.
economist.com/finance-and-ec… https://t.co/fe9X7E5yDb

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