The Bureau of Labor Statistics does not try to account for quality changes in the goods and services in the basket used to compute the CPI

Is it more efficient for a group of musicians to perform a show "unplugged" (with acoustic instruments) or with state-of-the-art electric instruments?

A) Unplugged is more efficient because the instruments are considerably less expensive to operate. B) It depends on what the musicians are trying to accomplish. C) The use of electric instruments is more efficient because acoustic instruments have become more expensive in recent years. D) It depends exclusively on the relative ratios of energy output to energy input in each instrument class.

Which of the following most correctly states the law of demand?

A) As the price falls all other things unchanged, demand will go up. B) As the price goes up, all other things unchanged, demand will go down. C) As the price falls, all other things unchanged, the quantity demanded will go down. D) As the price falls, all other things unchanged, the quantity demanded will increase.