54 ❖ Chapter 10/Externalities
42. Suppose that elementary education creates a positive externality. If the government subsidizes education by an
amount equal to the per-unit externality it creates, then
the equilibrium quantity of education will equal the socially optimal quantity of education.
the equilibrium quantity of education will be greater than the socially optimal quantity of education.
the equilibrium quantity of education will be less than the socially optimal quantity of education.
There is not enough information to answer the question.
43. University researchers create a positive externality because what they discover in their research labs can easily
be learned by others who haven’t contributed to the research costs. What could the federal government do to
equate the equilibrium quantity of university research and the socially optimal quantity of university research
produced?
tax university researchers
offer grants to university researchers
eliminate subsidized student loans
44. University researchers create a positive externality because what they discover in their research labs can easily
be learned by others who haven’t contributed to the research costs. Suppose that the federal government gives
grants to these researchers equal to the their per-unit production externality. What is the relationship between
the equilibrium quantity of university research and the socially optimal quantity of university research pro-
duced?
The equilibrium quantity is greater than the socially optimal quantity.
The equilibrium quantity is less than the socially optimal quantity.
There is not enough information to answer the question.
45. Suppose planting flowering shrubs creates a positive externality equal to $7 per shrub. Further suppose that the
local government offers a $7 per-shrub subsidy to planters. The number of shrubs that are planted is then
less than the socially optimal quantity.
greater than the socially optimal quantity.
equal to the socially optimal quantity.
There is not enough information to answer the question.
46. Suppose that cookie producers create a positive externality equal to $2 per dozen. Further suppose that the
government offers a $2 per-dozen subsidy to the producers. What is the relationship between the equilibrium
quantity and the socially optimal quantity of cookies to be produced?
The equilibrium quantity is greater than the socially optimal quantity.
The equilibrium quantity is less than the socially optimal quantity.
There is not enough information to answer the question.