Answer:
economies of scale
Step-by-step explanation:
The computation is shown below
In the first case
Long run average cost is
= $9 million ÷ 9 jets
= $1 million
In the second case
Long run average cost is
= $9.5 million ÷ 10 jets
= $.95 million
As it can be seen that the long run average cost would be decreased when the number of jets is increased this represent the economies of scale