In September 2005, destruction to U.S. gasoline refineries was caused by back-to-back storms along the U.S. Gulf Coast—Hurricane Katrina and Hurricane Rita. In one week, the average price of a gallon of gasoline in the United States increased by about
40 cents. Which of the following best explains why these events pushed up the price of gasoline?
A) The demand curve for gasoline shifted to the left along the supply curve for gasoline.
B) The supply curve for gasoline shifted to the left along the demand curve for gasoline.
C) The demand curve for gasoline shifted to the right along the supply curve for gasoline.
D) The supply curve for gasoline shifted to the right along the demand curve for gasoline.
Answer: B
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A public authority that provides banking services to commercial banks and regulates financial institutions and markets is called a
A) commercial bank. B) thrift institution. C) central bank. D) money market fund. E) mint.
In perfect competition, why is a firm's marginal revenue curve also the demand curve for the firm's output?
What will be an ideal response?