A Herfindahl-Hirschman Index is calculated by
A) summing the amount of sales by the four largest firms and dividing by total industry sales.
B) summing the squares of the market shares of each firm in the industry.
C) dividing the number of firms wanting to merge by the total number in the industry.
D) dividing the advertising expenditures of the firms that want to merge by total industry advertising expenditures.
B
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If land suitable for growing corn is also suitable for growing soybeans, and soybeans were found to prevent cancer,
A) the demand for corn would decrease. B) there would be no effect on the cost of growing corn. C) the supply (curve) of soybeans would increase. D) the cost of growing corn would rise. E) the cost of growing corn would fall.
In the figure above, what is Gap's markup?
A) $50 B) $15 C) $35 D) zero
When we study choice architecture, we recognize that people make:
A. choices that rarely maximize their well-being. B. mistakes in seemingly random ways. C. mistakes in common and predictable ways. D. choices which always maximize their well-being.
In the figure at? right, a movement from point A to point B can be explained by
A. he increase in exports to the foreign sector h B. the decrease in irterest eles C. a decrease in the real value of cash balances O D. an dscrease in the quantity of money in ciruation AD