The right-wing thinkers claim that unemployment is one of the indicators in the economy, displaying a lack of balance between industrial output and citizens' demands.

output 是由 out（向外）和 put（放置）组成的复合词，字面意思是"向外放置的东西"，引申为"产出、产量"。在经济学中特指工业生产的总产量或总产出量。