English version

multiplier

From Longman Business Dictionarymultipliermul‧ti‧pli‧er /ˈmʌltəplaɪə-ər/ noun [singular]ECONOMICS the idea that increased investment in an economy causes an even bigger increase in total income, as the spending has results that spread through the economy. KEYNESIANs say that this is why governments should increase spending when the economy is growing too slowly, even if it produces a DEFICIT (=when the government spends more than it receives in taxes)You could argue that this kind of tax cut will boost demand through the multiplier.
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