The price of a new textbook is? $60 in one year and? $75 two years? later, while the price of a used copy of the textbook increased from? $25 to? $37.50. The relative price of a new textbook
A) increased by 25 percent.
B) increased from 2.4 to 3.
C) decreased from 2.4 to 2.0.
D) decreased from 1.4 to 1.25.
Answer: C) decreased from 2.4 to 2.0.
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Dent 'n' Scratch Used Cars and Trucks employs 3 salesmen. Data for their sales last month are shown in this table: Cars Sold Trucks SoldLarry105Joe99Ralph312Based on last month's data, ________ has an absolute advantage in selling cars and ________ has an absolute advantage in selling trucks.
A. Joe; Joe B. Ralph; Larry C. Larry; Joe D. Larry; Ralph
The long run
A) means a long period of time, always longer than a year. B) is a period of time in which all factors of production can be varied. C) is different for different firms. D) Both answers B and C are correct.
The table above shows the marginal costs and marginal benefits of college education. If 8 million students are enrolled, the marginal external benefit is
A) zero. B) $4,000. C) $5,000. D) $7,000.
The key element in preserving a monopoly is
a. government subsidy of critical enterprises. b. keeping potential rivals out of the market. c. guaranteeing availability of substitute products. d. increased advertising expenditure.