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投资是国民经济的驱动器。1960年,发展经济学家罗斯托教授在论述其经济“起飞”理论时,认为一个国家想要使其经济能够起飞,投资是关键所在。我国“市场取向”的改革,财政资金逐步退出竞争性领域,民间投资在经济发展中扮演着越来越重要的角色,然而,当民间投资不足以满足经济发展所需要的投资时,政府的公共投资就扮演着促进经济发展的重要角色。同时,有些基础设施建设,因具有公共财产的性质,不适宜或无法由民间提供时,政府应责无旁贷地供应这些“公共产品”。所以,公共投资也可以说是支持国家经济增长的主要
Investment is the driver of the national economy. In 1960 Professor of Economics for Development, Professor Rostow, in his discourse on the theory of “take-off” in economy, believed that a country wanted to make its economy take off and investment was the key. China’s “market orientation” reform, the gradual withdrawal of fiscal funds from the competitive field, private investment in economic development plays an increasingly important role, however, when private investment is not enough to meet the investment needed for economic development, the government’s public Investment plays an important role in promoting economic development. At the same time, due to the nature of public property, some infrastructure construction is not suitable or can not be provided by the private sector and the government is duty-bound to supply these “public goods.” Therefore, public investment can also be said to be the main support for the country’s economic growth