In the past, the Department of Transportation allowed airline mergers that gave the
merged airlines market shares of 79 and 82 percent, respectively, in their hub cities. The
concept the DOT used to allow mergers where there was obvious concentration was
most likely
a. the good trust principle.
b. contestability.
c. the efficient market principle.
d. the monopolistic competition principle.
An excise tax
a. is a sales tax on the purchase of a particular good or service.
b. is a tax on the profits earned from the sale of an asset.
c. represents a surcharge on corporate profits beyond the normal corporate tax rate.
d. is a tax on income-earning rental property.