本文采用微元法,建立了两大部类经济增长率的关系,以及国民收入与经济增长率的关系。然后以两大部类经济增长率的关系曲线为约束,以两大部类国民收入最大化为目标,从而把最优经济增长率问题转化为非线性规划问题。通过求解这一非线性极值问题,得到了两大部类的最优经济增长率。 This article uses the microelement method to establish the relationship between the economic growth rates of the two broad sectors and the relationship between the national income and the economic growth rate. Then, taking the curve of the economic growth rate of the two major categories as the constraint and the goal of maximizing the national income in the two broad categories, the optimal economic growth rate is transformed into a nonlinear programming problem. By solving this nonlinear extremum problem, the optimal economic growth rate of the two major categories is obtained.