The optimal level of pollution is:
a. the level at which the marginal social cost of air quality equals the marginal social benefit.
b. the level at which the average social cost of air quality equals the average social benefit.
c. the level at which the total social cost of air quality equals the total social benefit.
d. zero.
a
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The figure below shows the supply and demand curves for oranges in Smallville. 
At the price of $4 per pound, sellers offer ________ pounds of oranges per day, and buyers want to purchase ________ pounds of oranges a day.
A. 30; 10 B. 20; 20 C. 10; 20 D. 10; 30
U.S. potential GDP is the value of the goods and services produced in the United States ________
A. in the reference base year B. when the U.S. unemployment rate is zero C. when the U.S. economy is at full employment D. when the U.S. inflation rate is zero
Does the strength of each of the five competitive forces from Michael Porter's model remain constant over time? Briefly explain
What will be an ideal response?
Unemployment occurs when someone:
A. wants to work but cannot find a job. B. is not working full-time. C. should be working but chooses not to. D. has useful skills that are not being used.