00:01
Hello, it's given that there is a perfectly competitive market and the price is $90 per unit.
00:12
Let's start with the part a.
00:15
How much output should the firm produce in the short run? and here we have the rule.
00:22
Marginal revenue should be equal to marginal cost.
00:26
Marginal revenue is $90, which is the price.
00:31
And marginal cost is 10 plus 4 times quantity.
00:42
And from here we can find that quantity, the optimal quantity, is equal to 20 units.
00:57
So the firm should produce 20 units of output.
01:02
In this case, the marginal revenue will be equal to the marginal cost of this company.
01:12
B, what price should the firm charge in the short run? and the price should be the market price.
01:20
The firm cannot increase the price, otherwise all consumers will stop buying because there are so many competitors.
01:32
There are many firms that produce identical goods...