Video Link: https://mru.org/courses/principles-economics-microeconomics/externalities-and-incentives-economics-covid

9 Why is a u shot an example of a positive externality? Since the number of people getting u shots will be lower than the socially optimal number of u shots, what are two ways to increase the number of people getting u shots? How is coronavirus vaccine development an example of a positive externality? Given that without some type of intervention, vaccine development would also be underprovided, what are some possible solutions to encourage vaccine development