Gans: "They were present in every, single policy discussion and tipped the balance towards action in cases where there were significant barriers and hurdles. In so doing, each showed how a careful accounting of economic forces can lead to progress, reduce uncertainty and make the case. That is what ties these two together..."
That's just polite, high school English concluding paragraph stuff. Yes, what they did had policy implications and actually affected policy. That's not linkage.