Suppose $\bar { a } _ { c } = 0.60$

Suppose $\bar { a } _ { c } = 0.60$ , $\bar { a } _ { i } = 0.20$ , $\bar { a } _ { g } = 0.20$ , $\bar { a } _ { e x } = 0.10$ , and $\bar { a } _ { i m } = 0.20$ ) For any given $R _ { t } , \bar { a }$ Equals ________ and the economy ________.

A) 0; is in its long-run equilibrium
B) 0.90; has experienced a positive aggregate demand shock
C) 0.30; has experienced a positive aggregate demand shock
D) -0.10; has experienced a negative aggregate demand shock
E) 1.00; is in its long-run equilibrium