If production of a good creates an external cost, the amount of output where the marginal social benefit equals the marginal private cost is

What will cause a decrease in US AD?

a. an increase in interest rates b. a boost in consumer confidence c. a decrease in business material costs d. an increase in M1 and M2

Refer to Table 8-13. Real GDP for Vicuna for 2013 using 2015 as the base year equals

A) $4,620. B) $5,100. C) $5,650. D) $5,850.