Figure 14.4 represents the market for used 12 megapixel digital cameras. Suppose buyers are willing to pay $400 for a plum (high-quality) used digital camera and $200 for a lemon (low-quality) used digital camera. If buyers believe that 50% of used digital cameras in the market are lemons (low quality), what percent of used digital cameras sold will actually be lemons?
A. 25%
B. 50%
C. 75%
D. 100%
Answer: C
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Which of the following shifts the supply curve of popcorn leftward?
A) a decrease in the price of popcorn B) an increase in the price of popcorn C) a technological development in the production of popcorn D) a decrease in the number of popcorn suppliers E) a decrease in the cost of producing popcorn
Which of the following will NOT increase a worker's human capital?
A) more work experience B) more training C) more schooling D) a higher wage rate
The price elasticity of demand for labor equals
A) the percentage change in the price of labor divided by the percentage change in the supply of labor. B) the change in the quantity demanded of labor divided by the change in the price of labor. C) the slope of the demand curve for labor. D) the percentage change in the quantity demanded of labor divided by the percentage change in the price of labor.
If Americans decide to buy more South African diamonds, what is the effect in the exchange market? a. It will increase the supply of U.S. dollars
b. It will decrease the supply of U.S. dollars. c. It will increase the demand for U.S. dollars. d. It will decrease the demand for U.S. dollars.