00:01
Calculate the amount of excess supply if there is a price floor.
00:12
So with a price floor, this is above the equilibrium price, so quantity supplied is greater than quantity demanded.
00:19
So we just need to find the difference between quantity supplied and quantity demanded at the price floor.
00:29
Then what about the price ceiling? so the price ceiling is underneath equilibrium price.
00:37
Quantity demanded is greater than quantity supplied.
00:40
So the amount of the shortage is quantity demanded minus quantity supplied.
01:03
So you have just been employed by a firm operating under a perfectly competitive environment.
01:09
The current market price per unit is $15.
01:11
Using the profit maximizing quantity level at $15, what is the firm's total revenue? so total revenue is going to be price times quantity.
01:38
So we're told that the market price is $15.
01:41
So we do 15 times the profit maximizing quantity, which is also $15.
01:52
So we do 15 times 15, that gives us $225 as our total revenue.
02:08
Then we need the total cost.
02:19
So we were given that total cost is equal to 0 .5q squared.
02:40
So the quantity was $15.
02:44
So that is substituted in for q.
03:03
Then we get our total cost.
03:04
Then we need to find total profit.
03:12
So we do total revenue minus total cost...