不同经济发展阶段各要素对经济增长贡献份额不是一成不变的,贡献大、起主导作用的要素是相互转换的,依不同阶段各要素贡献份额的函数特征关系,可将经济发展分为劳动投入主导阶段、投资主导阶段和科技进步主导阶段。就全面而言,当前经济运行正处于重要的转型期,这是由起主导作用的发达地区的经济运行水平决定的。长江三角洲、珠江三角洲、环渤海湾地区一直领跑全国经济,并对全国的经济走势起着决定性的主导作用,从发展特征看,这些地区的投 The contribution of each factor in different stages of economic development to economic growth is not constant. The major contributors to the economic growth are the factors that transform each other. According to the functional relationship between the contributions of various factors in different stages, the economic development can be divided into the leading stages of labor input , The leading stage of investment and the leading stage of scientific and technological progress. On the whole, the current economic operation is in an important transitional period, which is determined by the level of economic operation in the developed regions that play a leading role. The Yangtze River Delta, the Pearl River Delta and the Bohai Rim region have been leading the economy all over the country and have played a decisive leading role in the country’s economic development. In terms of development characteristics, the investment in these regions