If the four-firm concentration ratio for the market for diapers is 73 percent, then this industry is best characterized as
A) a monopoly.
B) monopolistic competition.
C) an oligopoly.
D) perfect competition.
E) either a monopoly or monopolistic competition.
C
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All of the following are examples of institutions that promote real economic growth EXCEPT
A) complex rules associated with business licensing used to promote careful business growth. B) patent laws that protect innovation. C) an efficient judicial system used to enforce contracts. D) strong law enforcement used to protect business interests.
Suppose that in 2016, all prices in the economy double and that all wages and salaries also double. In 2016 you
A) are no better off or worse off than you were in 2015 as the purchasing power of your salary has remained the same. B) are better off than you were in 2015 as your salary is higher than it was in 2015 and you can now buy more goods and services. C) are worse off than you were in 2015 as you can no longer afford to buy as many goods and services. D) cannot determine whether you are better off or worse off than you were in 2015, because the purchasing power of your salary cannot be determined.
Increasing returns to scale in production means
A) more than 10% as much of all inputs are required to increase output 10%. B) less than twice as much of all inputs are required to double output. C) more than twice as much of only one input is required to double output. D) isoquants must be linear.
An individual who worked before and is now returning to the labor force is known as a ______.
a. job loser b. job leaver c. reentrant d. new entrant