As a share of total national income, government spending generally has
A) been constant over the last fifty years.
B) increased over the last fifty years.
C) decreased over the last fifty years.
D) increased until ten years ago, and then decreased steadily.
B
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If the percentage change in the quantity of teapots demanded is greater than the percentage change in the price of teapots, then
A) the price elasticity of demand for teapots is greater than 1 in absolute value. B) the demand for teapots is unit elastic. C) the price elasticity of demand for teapots is less than 1 in absolute value. D) the price elasticity of demand for teapots is equal to zero.
Which of the following best describes the effects of unions in the United States today?
A) The average union worker works more hours but earns a lower annual income than the average nonunion worker. B) The average union worker works fewer hours but earns a higher annual income than the average nonunion worker. C) The average union worker works more hours and earns a higher annual income than the average nonunion worker. D) The average union worker works fewer hours and earns a lower annual income than the average nonunion worker.
Elephant populations in some African countries have started to rise because
a. environmentalists have developed effective educational campaigns. b. the value of ivory has decreased. c. some elephants have been made a private good, and people are allowed to kill elephants on their own property. d. regulations are being enforced more forcefully.