00:01
So here we're talking about consumer surplus, and let's remember that consumer surplus is the difference between value and price, right? it's a difference between how much something is worth to you and how much you actually have to pay to acquire it.
00:13
So before, we have consumer surplus of 20 minus 15 from our first user, which is 5, and then from the second user, sorry, the second user values at 17 and pays 15.
00:28
And so the second unit person enjoys it by two.
00:33
So seven is the consumer surplus.
00:38
But now there's a tax, right? now there's a tax.
00:42
And the first person, well, now the price is 18, so they still buy it.
00:47
It's 20 minus 18 over giving a consumer surplus of two, right? this person values at a 20.
00:56
They now have to pay 18, and they get two units of 30...