austerity vs belt-tightening

austerity

noun
  • A policy of deficit-cutting, which by definition requires lower spending, higher taxes, or both. 

  • Freedom from adornment; plainness; severe simplicity. 

  • Severity of manners or life; extreme rigor or strictness; harsh discipline. 

belt-tightening

noun
  • A reduction in expenditure, often as a result of financial restrictions. 

adj
  • Causing or involving a reduction in expenditure. 

How often have the words austerity and belt-tightening occurred in a corpus of books? (source: Google Ngram Viewer )