ECO.10:12 - Relations
ECO.2 supplies price responses; ECO.3 identifies new feasible exchanges; ECO.7/.9 address shared-resource or rule changes when those are selected. PHY and MMP supply physical and computational models, OPS supplies flow and capacity, MA and FIN supply cost and financial comparisons. General FPF choice and portfolio methods compare the retained alternatives; this pattern adds the demand-response contribution, not another portfolio mechanism.