Research by the International Monetary Fund has indicated that these fiscal multipliers – the second factor overlooked by forecasters – vary with underlying economic conditions. In economies with excess capacity (including human capital) and a high degree of structural flexibility, the multipliers are greater than once thought.
国际货币基金组织（IMF）的研究表明这些财政乘数——被预测者忽略的第二大因素——随基本经济条件的波动而变化。在产能过剩（包括人力资本）和高结构弹性的经济体，这些乘数比此前认为的更大。