When internal economies of scale occur?
Total costs fall
Marginal costs increase
Average costs fall
Revenue falls
Wages is __________ cost of the production.
Fixed
Variable
Opportunity
Marginal
_________ cannot be changed in the short period .
Fixed Cost
Production Cost
Total Cost
Variable Cost
Average fixed cost is
Never becomes zero
Curve never touches x - axis
Curve never touches y - axis
All the above