belt-tightening vs downsizing

belt-tightening

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

adj
  • Causing or involving a reduction in expenditure. 

downsizing

noun
  • An act in which a company downsizes or is downsized 

  • miniaturization 

  • Reducing engine's capacity at same power or increasing engine's power without increasing capacity 

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