If a social planner were running a monopoly, that planner could achieve an efficient outcome by charging the price that is determined by the
a. minimum point on the average total cost curve.
b. intersection of the average total cost curve and the demand curve.
c. intersection of the marginal cost curve and the demand curve.
d. intersection of the marginal cost curve and the marginal revenue curve.
c
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Based on the figure below. Starting from long-run equilibrium at point C, a tax cut that increases aggregate demand from AD to AD1 will lead to a short-run equilibrium at point ________ and eventually to a long-run equilibrium at point ________, if left to self-correcting tendencies. 
A. D; C B. B; C C. B; A D. D; B
If children go to school and become productive members of society
A) a negative externality is created by the schools. B) a positive externality is created by the schools. C) no externality is created by the schools. D) an externality is created that may be positive or negative.
Which of the following countries currently has the largest population?
a. India b. Indonesia c. Brazil d. China
New classical economics assumes that government has direct control over the equilibrium level of GDP and indirect control over the money supply
a. True b. False Indicate whether the statement is true or false