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ries are different from each other and evolve rapidly, researchers in industrialorganization have patiently built a body of knowledge that has helped regulators to betterunderstand market power and the effects of policy interventions, and helped firms toformulate their strategies. They have thereby contributed to making this world a better world,the economistamp。rsquo。s first mission. Yet, there is so much we still have to learn, and the world changesfaster