Answer is:
If extra units of one variable input are added to a fixed amount of all other inputs, then sooner or later the marginal returns will get smaller
Answer is:
Throughout the output range where a firm enjoys economies of scale, its long-run marginal cost curve, LMC, will slope downwards
Answer is:
Its SAC curve will stay put if the price of an input that is fixed in the short run increases
Answer is:
It has at least one fixed input
Answer is: