Engineering Economics
A project construction cost estimate includes:

All of these
The equipment and over head cost
The profit of the contractor
The labour and material cost

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Engineering Economics
Perfect monopoly exists only if:

the single vendor is the only one who has the permit to sell
the single vendor gets the absolute franchise of the product
the single vendor is the only one who has the knowledge of the product
the single vendor can prevent the entry of all other vendors in the market

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