please help me with the math here
"one more robot per thousand workers reduces aggregate employment to population ratio by about 0.34 percentage points." In other words, every new robot added to a given commuting zone reduces employment by 5.6 workers.
I am having a bit of trouble with the math here, so please help me out.
Let's say I have 1000 people living in the area, and 400 of them are working - so the employment ratio is 40%. I now add one industrial robot, thereby reducing the emplyment ratio to 39.66%. Because I still have 1000 people living in the area (robots do not count as humans, at least not the industrial robots), I now have 396.6 people at work. Therefore, adding the robot has eliminated 3.4 jobs.
Yet, the article claims 5.6 in many places (so it is not a typo). What am I doing wrong here?
Biting the hand that feeds IT
