A four-firm concentration ratio of 60 percent would indicate the likely presence of oligopoly
Indicate whether the statement is true or false
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Which of the following statements is true?
A) Randomization allows for classification of participants according to their choice. B) The subjects in the treatment group and the control group of an experiment are treated identically, except along a single dimension. C) Randomization is not used in medical experiments. D) The subjects in the treatment group and the control group of an experiment are identical in all respects and they are treated identically.
A system of laws and courts generates positive externalities because
A) only governments are capable of creating such systems. B) people cannot choose whether or not to obey the law. C) people who disobey the law benefit from the existence and enforcement of rules applicable to all. D) such a system could not exist without the approval of a majority.
If you have $1,000 in wealth and the price level increases by 20 percent, then
A) the $1,000 will buy fewer goods and services. B) the $1,000 dollars will buy 20 percent more goods and services. C) the real value of the $1,000 increases. D) you will be able to buy fewer goods, but the real value of those goods will increase.
In a world of perfect information, if consumers could costlessly contract with private contractors to produce a good and there were no economies of scale,
a. firms would be unnecessary b. markets would be unnecessary c. consumers would be unnecessary d. consumers would face greater production costs e. firms would be more efficient than the market