Operational Definitions: The Unemployment Rate
Why the "Unemployment Rate" is Flawed -- Adam Ruins Everything, 2017, 1:47 -- https://www.youtube.com/watch?v=fVaLmnUZOjQ
A good example of how important it is to be transparent with our categorical requirements. Much of what we would normally consider "unemployed" is not officially categorized as such in the US, and with the emerging dominance of the "gig economy", underemployed people are even more at risk of becoming invisible in the struggle for fair-paying, secure jobs.