Question

In the coronavirus era, there are several possible lines of thought about the benefits/costs of wearing a mask in public versus not wearing a mask.  Some people think wearing a mask helps prevent the spread of coronavirus and protects mask wearers from getting coronavirus from asymptomatic people who have the virus.  Other people think that effective vaccines are too far off and that the virus will have to spread widely so that the population gains “herd immunity.”  Does wearing a mask generate a positive externality, a negative externality or neither?

Answer 1

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