Earlier quoted context omitted.
Maybe my terminology is off, correct me if so, but when businesses fold because bigger competitors are buying all the resources needed to stay competitive, that sounds like a shortage to me. On the labor side, getting a $120k+ job out of a 4 year/$14k investment also sounds like a labor shortage.
No, that means some business wasn't competitive. When machines were created, many clothing companies folded because cotton become more expensive. It was expensive because machines could make clothes cheaper, so people brought more. Is that a shortage? At any time there's trash on some street that could be picked-up by hand. That's a job in direct competition with yours, yet there's nobody there hand-cleaning the stre…
This discussion and the original article is focused on analyzing why wages are falling with unemployment. "Businesses are failing because they are uncompetitive" describes most businesses. The question is: Why are the failing? How does that impact down-stream systems? What up-stream systems could have had an impact? Follow the chain of cause -> effect.
Ineffective labor cross training into high-skill high-demand jobs -> labor shortages -> only large scale operations can afford to bid -> dramatic efficiency gains -> lower asking price of products -> businesses that couldn't bid collapse due to uncompetitiveness in the new market -> surplus less-skilled labor and economic disparity -> less taxes for infrastructure -> less regional competitiveness -> ... so forth, hypothetically.
Which is why I concluded with investing in education (root cause resolution) and competitive regional infrastructure (new growth, avoid another labor glut from overcorrection).