18) The daily demand for hotel rooms on Manhattan Island in New York is given by the equation
QD = 250,000 – 375P. The daily supply of hotel rooms on Manhattan Island is given by the equation QS = 15,000 + 212.5P. Diagram these demand and supply curves in price and quantity space.
What is the equilibrium price and quantity of hotel rooms on Manhattan Island?
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2.3 Changes in Market Equilibrium
1) Which of the following would cause an unambiguous decrease in the real price of DVD players?
A) A shift to the right in the supply curve for DVD players and a shift to the right in the demand curve for DVD players.
B) A shift to the right in the supply curve for DVD players and a shift to the left in the demand curve for DVD players.
C) A shift to the left in the supply curve for DVD players and a shift to the right in the demand curve for DVD players.
D) A shift to the left in the supply curve for DVD players and a shift to the left in the demand curve for DVD players.
2) From 1970 to 2010, the real price of a college education increased, and total enrollment increased. Which of the following could have caused this increase in price and enrollment?
A) A shift to the right in the supply curve for college education and a shift to the left in the demand curve for college education.
B) A shift to the left in the supply curve for college education and a shift to the right in the demand curve for college education.
C) A shift to the left in the supply curve for college education and a shift to the left in the demand curve for college education.
D) none of the above
3) From 1970 to 2010, the real price of eggs decreased. Which of the following would cause an unambiguous decrease in the real price of eggs?
A) A shift to the right in the supply curve for eggs and a shift to the right in the demand curve for eggs.
B) A shift to the right in the supply curve for eggs and a shift to the left in the demand curve for eggs.
C) A shift to the left in the supply curve for eggs and a shift to the right in the demand curve for eggs.
D) A shift to the left in the supply curve for eggs and a shift to the left in the demand curve for eggs.
4) From 1970 to 2010, the real price of eggs decreased and the total annual consumption of eggs decreased. Which of the following would cause an unambiguous decrease in the real price of eggs and an unambiguous decrease in the quantity of eggs consumed?
A) A shift to the right in the supply curve for eggs and a shift to the right in the demand curve for eggs.
B) A shift to the left in the supply curve for eggs and a shift to the right in the demand curve for eggs.
C) A shift to the left in the supply curve for eggs and a shift to the left in the demand curve for eggs.
D) none of the above
5) We observe that both the price of and quantity sold of golf balls are rising over time. This is due to:
A) continual improvements in the technology used to produce golf balls.
B) increases in the price of golf clubs over time.
C) decreases in membership fees for country clubs with golf facilities.
D) more stringent professional requirements on the quality of golf balls requiring producers to use more expensive raw materials.
6) Which of the following will cause the price of beer to rise?
A) A shift to the right in the demand curve for beer
B) A shift to the left in the supply curve of beer
C) both A and B
D) none of the above
