| Along with the reform-open policy continuously performance, China economy has been grown rapidly. The government every year reports not only the state of economic running, but also some guidelines to the macro-economic policy, which influence the devotion factors, so they also influence the GDP growth. It is significant to study the relationship between the economic growth and its devotion factors.This paper reviews some related theories of economic growth according to its formation and development period, then introduces some literatures of S-D model to Chinese economy research. On this foundation, this paper makes reference to these economy growth theories and S-D model literatures, in order to lays foundation for the following research.This text firstly thinks that capital,labor force,R&D cost and energy consume are main devotion factors to economy growth according to above-mentioned theories. Then it builds a production function of economy growth with the four factors, and examines this function by statistics theories. After studying of their relationship, we analyze the basic cause and effect relation between the economy growth and the main factors, even between main factor and main factor. At last we set up a system-dynamics model according to the theory of system-dynamics model, and elucidate the establishment process and the examination method of the model.This paper chooses Shandong province as the application study case, and elaborates the methods of collection data in detail. Then according to the second part and the third part acknowledge, we build up the relationship function and S-D model of economy growth with the main devotion factors of Shandong province. After this, we put forward three projects, which change one devotion factor, in order to analyze every factor's influence to economic growth. We have got following related conclusion to Shandong province after the application analysis. Firstly, the economy growth speed is sensitive to the devotion mount of capital and R&D cost. If the funds are limited, it is advantageous to the economy growth to reduce the investment of the fixed assets and increase the R&D cost. Secondly, increasing energy consume is disadvantage to economy growth, but the variety of the energy consume is not sensitive to the economy growth. Thirdly, raising the labor employment rate can push the growth of the economy, but their sensitive is also low, so it is not clear significant to make economy growth depend on increasing labor force number in nowadays. |
