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一引言乘数、加速数是凯恩斯宏观经济学中刻画某种作用机制的重要概念,在凯恩斯的宏观调控理论中有重要地位,乘数、加速数原理已经被广泛接受和运用。投资(消费)乘数指一定量的投资(消费)变动所能最终导致国民收入的变动比例。加速数指国民收入变动所
I. INTRODUCTION Multipliers and accelerators are important concepts in Keynesian macroeconomics to depict some mechanism of action. They play an important role in Keynes’s macro-control theory. The principle of multipliers and accelerators has been widely accepted and applied. The investment (consumption) multiplier refers to the proportion of changes in national income that ultimately result from a change in the amount of investment (consumption). Acceleration refers to the change in national income