【摘要】 在研究经济系统内部机理的基础上，揭示了系统的力学性质，建立了外延和内涵扩大再生产与经济系统产出效益关系的数学模型，利用模型对经济系统增长质量分析与评价指标体系的建立作了探索更多还原

【Abstract】 Based on a subtle study on the internal mechanism of economic systems, this paper brings to light its mechanical properties.Economic variables are properly chosen, a mathematical model delineating the relations between extension or intension based expanded reproduction and productive benefits of economic system is developed, and furthermore, the index system to be used in increasing quality analysis and evaluation is investigated.更多还原