Question 5: Development of a COVID)-19 vaccine (from 2020 Final) [40 points] Often, patents (or some sort of reward for innovation) are needed in order to encourage investment in the search for the cure of various diseases. In this exercise we study the different policy instruments available to induce the monopolist to produce the socially optimal amount of a coronavirus vaccine. Suppose that the market demand curve for a coronavirus vaccine is given by: y( p) - P. where 1