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本文从乘数原理的涵义出发,建立产业投资乘数的测算模型,并以长江航道某工程建设投入为例测算了其对社会经济的直接贡献,揭示了长江航道建设投入与国民经济各部门的直接联系。
Based on the conception of multiplier principle, this paper establishes the calculation model of industrial investment multiplier, and uses the input of a project in the Yangtze River Estuary as an example to estimate its direct contribution to the society and economy. It reveals that the input of the Yangtze River waterway construction and various sectors of the national economy contact directly.