Engineering Economics
What is a stock of a product which is held by a trade body or government as a means of regulating the price of that product?

Hoard stock
Withheld stock
Buffer stock
Stock pile

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Engineering Economics
The key to profitable operation for project cost control, is:

None of these
To keep the project cost equal to original cost estimate
To keep the project cost equal to subsequent construction budget
To keep the project cost within the cost budget and knowing when and where job costs are deviating

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