00:01
So here we're talking pollution, right? and we have quantity of pollution, and we have three firms, which are one, two, and three.
00:07
And we have this table of marginal costs, right? this is marginal abatement cost.
00:12
And so now in the first thing, what we need to do is we need to cut 15.
00:17
So here we have 10, 9, 8, 7, 6, and 5.
00:23
So if a, we have five each.
00:28
So this means that they need to instead of producing 10 they need to produce 5.
00:33
So they go from 10 which is so we have these numbers 0, 4, 8, 12, 16, and 20 right and so these are marginal right so we need to sum the costs.
00:50
So the total for firm 1 would be all these numbers put together right 4 plus 8 is 12, 12 is 24, 4, 20 is 44, 54, and 60...