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

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

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Engineering Economics
Which is NOT an essential element of an ordinary annuity?

The payments are made at equal interval of time.
The first payment is made at the beginning of the first period.
The amounts of all payments are equal.
Compound interest is paid on all amounts in the annuity.

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Engineering Economics
Liquidity ratios are used:

To measure a firm’s ability to meet short-cut obligations
All of these
To compare short term obligations to short-term resources available to meet these obligations
To obtain much insight into the present cash solvency of the firm and the firm

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