belt-tightening vs shrinking

belt-tightening

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

adj
  • Causing or involving a reduction in expenditure. 

shrinking

noun
  • The act of one who, or that which, shrinks; act of becoming smaller or moving timidly away. 

adj
  • Shy and retiring. 

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