This graph depicts the demand for a normal good. 
A shift from A to B in the graph shown might be caused by:
A. an increase in the good's price.
B. a decrease in the price of a complement.
C. a decrease in the price of a substitute.
D. an increase in the price of a complement.
Answer: B
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If the price of a slice of pizza rises from $2.50 to $3, and quantity demanded falls from 10,000 slices to 7,400 slices, using the formula for arc price elasticity what is the percentage change in quantity?
A) -18.18% B) -29.89% C) -26% D) -35.14%
The national debt: a. is a flow variable measuring the net accumulation of past deficits
b. is a stock variable measuring the net accumulation of past deficits. c. measures the amount by which government revenues exceed outlays in a particular year. d. includes the projected liabilities of Social Security, Medicare, and other federal retirement programs. e. includes outstanding liabilities of federal, state, and local governments minus government financial assets.