Ed Glaeser wrote on this back in 2009.
厄德·格莱泽在2009年如此写道。
But Ed Glaeser, an economist, argues that clusters of clever workers themselves enhance productivity.
但是,经济学家Ed Glaeser认为是这群聪明的工人本身增强了生产力。
As you can see, there's a tight relationship between school enrolment in 1900 and income a century later. Ed Glaeser wrote on this back in 2009.
就像你所看到的那样,1900年的入学率和一个世纪后的收入水平之间存在密切联系。厄德·格莱泽在2009年如此写道。
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