The Investment Contribution and Rational Scale of Logistics Infrastructure

摘要

Logistics infrastructure plays an important role with logistic development and economic growth. On the basis of simply reviewing and analyzing the theory research of the relationship between logistics infrastructure and economic growth, the article set up a model to assess the contribution of logistics infrastructure investment to economic growth, u-sing Cobb-Douglas production function. According to the result, the article also establishes the terms of the optimal investment scale, that is the marginal outputs of every parts of logistics infrastructure investment being equal to each other. After the analyzing and probing into the results, it is sure that we should pay more attention to correspond the construction and investment structure of logistics infrastructure investment in China, in order to improve the total service capability of logistics infrastructure.