The discussion of output feedback control for the dynamic multiplier-accelerator model

To the problem of output feeeback control for the dynamic multiplier-accelerator model,we discuss it by the!theory of state space.We obtain the following results:in general situation,the economic system does not exist an output feedback control;but in special situation ( G(t) 0),we can design an output feedback control G(t)=HY(t) to make instability of open-loop system into stability of closed loop system,and we give the condition of designing an output feedback control.