When internal economies of scale occur?
Total costs fall
Marginal costs increase
Average costs fall
Revenue falls
_________ are short run cost.
AC
MC
TC
All the above
Average fixed cost is
Never becomes zero
Curve never touches x - axis
Curve never touches y - axis
If marginal cost is positive and falling
Total cost is falling
Total cost is increasing at a falling rate
Total cost is falling at a falling rate
Total cost is increasing at an increasing rate
