Thank you, Charwalk. This isn't a standard English expression. I've never heard it before. But the article explains what they mean by the term, in the paragraph using it:
Our political class is conditioned to think in terms of shortages, restrictions, bans, poverty . Material poverty follows intellectual poverty. And tackling shortages of a desired entity by restricting demand instead of looking to boost supply is a hallmark of that povertarian mindset.
Here the word that means "the one I've just described".