Of the Five Endogenous Variables in the Dynamic Model of Aggregate

Multiple Choice

Of the five endogenous variables in the dynamic model of aggregate demand and aggregate supply, which are the real variables that do not depend on the monetary policy in long-run equilibrium?

A) Y_t and $\pi$ _t
B) i_t and r_t
C) E_t $\pi$ _{t + 1} and $\pi$ _t
D) Y_t and r_t