In a market with only one firm (a pure monopoly), the Herfindahl-Hirschman Index (HHI) would equal 10,000
a. True
b. False
Indicate whether the statement is true or false
True
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In order to enjoy a rising standard of living standard, a nation's capital stock must grow faster than
a. the rate of depreciation b. the rate of inflation c. its population d. its financial assets e. its overall rate of economic growth
In an efficient market without externalities,
A. price equals marginal private cost and is below marginal social cost. B. price equals marginal private cost and marginal social cost. C. price equals marginal private value and is below marginal external value. D. price equals marginal private value and marginal external value.
The number of standard deviations z that a particular value of r is from the mean ? can be computed as z = (r - ?)/ ?. Suppose that you work as a commission-only insurance agent earning $1,000 per week on average. Suppose that your standard deviation of weekly earnings is $500 . What is the probability that you earn zero in a week? Use the following brief z-table to help with this problem. Z
value Probability -3 .0013 -2 .0228 -1 .1587 0 .5000 a. 1.3% chance of earning nothing in a week b. 2.28% chance of earning nothing in a week c. 15.87% chance of earning nothing in a week d. 50% chance of earning nothing in a week e. none of the above
Suppose an appreciation of the French franc causes U.S. prices of French wine imports to rise sharply. On the other hand, Californian wine becomes relatively inexpensive to French consumers. Other things equal, this will result in:
a. an increase in U.S. aggregate expenditures and an increase in the aggregate quantity of U.S. goods and services demanded. b. a decrease in U.S. aggregate expenditures and a decrease in the aggregate quantity of U.S. goods and services demanded. c. an increase in U.S. aggregate expenditures and a decrease in the aggregate quantity of U.S. goods and services demanded. d. no change in either U.S. aggregate expenditures or the aggregate quantity of U.S. goods and services demanded. e. a decrease in U.S. aggregate expenditures and an increase in the aggregate quantity of U.S. goods and services demanded.