belt-tightening vs devaluation

belt-tightening

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

adj
  • Causing or involving a reduction in expenditure. 

devaluation

noun
  • The intentional or deliberate lowering of a currency's value compared to another country's currency or a standard value (e.g. the price of gold). 

  • The removal or lessening of something's value. 

  • Depreciation. 

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