宏观经济系统建模中的加总问题研究

Aggregation Problems in the Modeling of Macroeconomic Systems

本文把宏观经济系统描述成由微观经济单元并联而成的组合系统,在此基础上不仅分析了系统的能控性,而且针对宏观经济指标的动态描述及最优控制这两个问题,研究了经济系统中微观个量与宏观总量运行规律之间的关系,分别给出了由微观经济模型经简单加总得到宏观模型的条件.

This paper considers macroeconomic systems as combinatory systems consisting of parallel economic agents as subsystems,based on which controllability of economic systems is studied and the relation between aggregate economic variables and the individual variables, is investigated. As a result, conditions for macroeconomic models to be obtained directly from microe-conomic ones by 'simple sum' are provided respectively in the case of dynamic modeling and optimal control of macroeconomic index.