00:02
Hello, let's start with part a.
00:06
So here we need to find what are the firm's average total cost at these three different levels of production.
00:17
So let's calculate them.
00:21
In the first case, average total cost will be equal to we divide $500, which is total cost, cost by quantity which is 1400 and average total cost will be equal to 0 .36.
00:46
In the second case it will be equal to 350 over 1200 and it will be equal to 0 .29.
01:02
In the third case we divide 300 and 25 over 900 and it will be 0 .36.
01:20
Okay, now let's go to the part b.
01:26
If every firm in this industry has exactly the same cost structure, is the industry in long run competitive equilibrium or not.
01:40
So the answer is no.
01:44
This industry is not in the long run equilibrium.
01:50
Because at the long run equilibrium, firms, they produce at the minimum of the average total cost.
01:57
From the given information, the minimum average total cost is 0 .29.
02:04
At this point, the quantity produced is 1 ,200 units...