Definition of Laffer curve in English:

Laffer curve


  • A supposed relationship between economic activity and the rate of taxation which suggests that there is an optimum tax rate which maximizes tax revenue.

    • ‘Another area where the 1990s have proved supportive of progressive economics concerns supply-side economics and the Laffer curve.’
    • ‘People and businesses can move from state to state or city to city in response to varying tax rates, but US discussions of the Laffer curve have not factored this mobility into the equation.’
    • ‘The mechanism must be as foolproof as the Laffer curve, which tells you that as you reduce tax rates, the tax yield increases and approaches a maximum.’
    • ‘The theory of supply side economics and the Laffer curve drove federal marginal tax rates from 91% in 1963 down to 28% when Ronald Reagan left office.’
    • ‘Changes in tax rates shift the Laffer curves of competing tax jurisdictions.’


1970s: named after Arthur Laffer (born 1942), American economist.


Laffer curve