BlackRock manages around $13 trillion, more money than the economies of most countries. It holds major stakes in many of the world’s largest companies on behalf of its clients. That gives the firm enormous voting power across corporate America. Its Aladdin technology helps major banks, governments, and institutions understand risk. During financial crises, governments have even turned to BlackRock for advice. It does not literally own all that money or control the world, but very few firms have

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