buoyancy
B1CEFR level
40/100Rarity: uncommon
TechnicalRegister
Law noun
The responsiveness of tax revenue to growth in the underlying tax base or economy.
Strong wage growth improved the buoyancy of income-tax receipts.
Business noun
The tendency of tax revenue to rise more than proportionately with income.
Strong revenue buoyancy let the treasury cut the deficit without raising a single rate.
Rarity runs from 0 (a word everyone knows) to 100 (almost never seen outside specialist or literary writing). Level is the word's real difficulty on the CEFR scale, from A1 to C2.
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