noun
multiplier effect
Economics term for the phenomenon where an initial change in spending leads to a larger change in national income.
政府支出の増加は乗数効果を通じてGDPを押し上げる。
An increase in government spending boosts GDP through the multiplier effect.
乗数 means 'multiplier' in a mathematical or economic sense, while 乗数効果 specifically refers to the resulting economic effect.
Compound of 乗数 (multiplier) and 効果 (effect), a direct translation of the English economics term 'multiplier effect'.