00:01
So let's go over this question.
00:04
We're given the characteristics of competitive markets.
00:09
The competitive market model depends on the following three assumptions.
00:15
There must be many buyers and sellers.
00:38
So the key is that this is competitive so we're going to have competition.
00:43
That's why we can't only have a few or just one firm dominating the market.
00:50
The firms must produce an identical product.
00:56
Buyers must regard all sellers products as equivalent.
01:00
So in order to compete with each other the firms have to make the same product otherwise they wouldn't be competing with each other.
01:14
So for example if the firms all make laptops then they're competing with each other but if they make different products they wouldn't be competing because you wouldn't be able to compare those products.
01:27
They're not the same product.
01:29
Firms and resources must be fully mobile allowing free entry into and exit from the industry.
01:49
So firms and resources must be able to enter and exit the market freely.
01:57
So if the firms are not making a profit they're going to exit.
02:09
So the key here is that firms must be able to enter and exit freely.
02:17
The first two imply all consumers and firms are price takers...