![](https://cos-cdn.shuashuati.com/pipixue-web/2020-1231-2005-12/ti_inject-812ce.png)
As evidence, Brynjolfsson and McAfee point to a chart that only an economist could love. In economics, productivity— the amount of economic value created for a given unit of input, such as an hour of labor —is a crucial indicator of growth and wealth creation. It is a measure of progress. The primary purpose of the underlined part is to