The table above gives the market share of sales of firms in the retail clothing market. What is the four-firm concentration ratio?
A) 70 percent
B) 100 percent
C) 85 percent
D) 65 percent
C
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Since mid-2000, the Fed's only operating target has been
A) M2 money supply growth. B) the discount rate. C) the consumer price index. D) the federal funds rate.
An example of a time series data set is one for which the:
a. data would be collected for a given firm for several consecutive periods (e.g., months). b. data would be collected for several different firms at a single point in time. c. regression analysis comes from data randomly taken from different points in time. d. data is created from a random number generation program. d. use of regression analysis would impossible in time series.
Which of the following is a way in which firms can achieve economies of scale?
a. Increasing the scale of operation b. Product differentiation c. Producing different products in the same plant d. Using more workers than are actually needed
Assume a family that earns $20,000 pays $1,000 in income taxes, while a family that earns $40,000 pays $3,750 in income taxes. In this situation, the income tax system is
A. regressive. B. progressive. C. proportional. D. one of these but we cannot tell which one without more information.