Will the system reduce the cost differences that are experienced today? (yes all buyers buy at the same prices, price to the low end)

It is within the mechanism of the system to smoothen the cost differences of emission control between different installations or different cost levels in different EU states. Tradeable reduction permits are deposited into a pool, where they can be purchased under the same market terms by all interested parties. Within a credit based trading scheme, the cost of purchasing reductions will be the same for all installations per time. This means that the installations purchasing emission reductions share similar costs per ton.