simplify and summarize the following in paragraph form: Because there are relatively few robots in the US economy, the number of jobs lost due to robots has been limited so far (ranging between 360,000 and 670,000 jobs, equivalent to a 0.18- 0.34 percentage point decline in the employment to population ratio). However, if the spread of robots proceeds as expected by experts over the next two decades (e.g., Brynjolfsson and McAfee, 2012, especially pp. 27-32, and Ford, 2016), the future aggregate implications of the spread of robots could be much more sizable. For example, BCG (2015) offers two scenarios for the spread of robots over the next decade. In their aggressive scenario, the world stock 36 of robots will quadruple by 2025. This would correspond to 5.25 more robots per thousand workers in the United States, and with our estimates, it would lead to a 0.94-1.76 percentage points lower employment to population ratio and 1.3-2.6 percent lower wage growth between 2015 and 2025. Their more conservative scenario involves a less than threefold increase in the stock of robots, and would correspondingly have a more modest impact (a reduction of 0.54- 1 percentage point decline in the employment to population ratio