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 | | What Matters: How big can cities get? |  | The world is in the midst of a mass urbanization that will have profound implications. What Matters has convened thinkers from around the world to look at what it means. Read more on the What Matters site |
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 |  | Growth and renewal in the United States: Retooling America's economic engine | To match the GDP growth rates of the past 20 years, the United States needs a 34 percent acceleration in productivity growth to a rate not achieved since the 1960s. Read more
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 |  | Farewell to cheap capital? The implications of long-term shifts in global investment and saving | By 2020, half of the world's saving and investment will take place in emerging markets, and there will be a substantial gap between global investment demand and the world's likely saving. Read more |  |
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