multiplier function

例句：

1. 1. In economics, the multiplier function is used to model how changes in government spending affect economic activity.
   在经济学中，乘数函数被用来模拟政府支出变化对经济活动的影响。
2. 2.The multiplier function is a key tool for understanding the effects of fiscal policy on the economy.
   乘数函数是理解财政政策对经济影响的关键工具。
3. 3. The economists found that the multiplier effect was not as strong as expected, which could have significant implications for future policy decisions.
   经济学家发现乘数效应没有预期的那么强，这可能对未来的政策决策有重大影响。