anchor: Finally, to simulate the effects of allowance updating, the value of reallocated allowances can be calculated and subtracted from each unit's cost of generation - thereby inducing each unit to change its profit-maximizing level of generation in response to a given set of fuel, allowance, and electricity prices.
positive: Value of reallocated allowances can be calculated and subtracted from each unit's cost/
negative: Nothing can be done to stimulate the effects of allowance updating.