Engineering Economics
Aside from many sellers and many buyers, which one is a characteristic of perfect competition?

Perfect information and absence of all economic friction
Free market entry and exit
All of these
Homogeneous product

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Engineering Economics
Under the depletion allowance method in computing depreciation, the depletion charge is equal to either ______ whichever is smaller.

Fixed percentage of gross income or 50% of the net taxable income
Fixed percentage of gross income or the net taxable income
50% of the fixed percentage of gross income or 50% of the net taxable income
50% of the fixed percentage of gross income or the net taxable income

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