答案和详解如下： 1.Compared to normal markets, the existence of fraud and the use of violence in black markets generally leads to: A) poorer economic efficiency. B) superior economic efficiency. C) lower profit rates for sellers. D) lower prices for sellers. The correct answer was A) Fraud and violence lead to a lower level of economic efficiency in black markets. The black markets operate less smoothly. The sellers that are not caught can charge a higher price for the risks they take and earn a higher profit rate. 2.Under a price ceiling, bribery is a mechanism to: A) allocate a good to the poorest individuals in the market. B) allocate a good to the richest individuals in the market. C) bring the total price of a good (including the bribe) higher and closer to the equilibrium price. D) bring the total price of a good (including the bribe) lower and closer to the equilibrium price. The correct answer was C) A price ceiling is an upper limit on the price a supplier can charge. If the ceiling is below the equilibrium price, it can result in bribes as a rationing mechanism, whereas the total price of a good (including the bribe) is brought closer to the equilibrium price. 3.Which of the following describes a market for goods or services that operates outside the legal system, trading at prices that exceed legally imposed price ceilings? A) An incidental market. B) A black market. C) A utilitarian market. D) An asymmetrical market. The correct answer was B) A black market is a market where trading takes place for legally prohibited goods or at prices that exceed legally imposed ceiling prices. | 
发表于 2008-4-9 11:07
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