Suppose that an individual's demand curve for doctor visits per year is given by the equation P-200-50Q where Q is the number of doctor visits per year and P is the price per visit. Suppose also that the marginal cost of each doctor visit is $100. (a) How many visits per year would be efficient? What is the total cost of the efficient number of visits? [1 mark (b) Suppose that the individual obtains insurance. There is no deductible, and the coinsurance rate is 50% (meaning the individual will pay 0.5P out-of-pocket). How many visits to the doctor will occur now? What are the individual's total out-of-pocket expenses? How much does the insurance company pay for this individual's doctors' visits? 1 mark] (c) What is the deadweight loss (if any) caused by this insurance policy? (Provide an exact number.) 1 mark]