That is, the multiplier is the multiple by which an initial change in aggregate spending will alter total expenditure after an infinite number of spending cycles. 換句話說，乘數是這樣一個係數，用這個係數乘以總支出的最出變動量，可以得到經過無數次支出循環的總支出。
Local government expenditure usually represents only a very small proportion of total expenditure within any community, the lion's share coming from private purses. 在任何社會，地方政府的開支常常只能代表地方總支出的極小部分，而最大部分主要來自私人的口袋。
