18. In a certain economy, when income is $400, consumer spending is $325. The value of the
multiplier for this economy is 3.33. It follows that, when income is $450, consumer spending is
a. $360. For this economy, an initial increase of $50 in consumer spending translates into a
$266.67 increase in aggregate demand.
b. $360. For this economy, an initial increase of $50 in consumer spending translates into a
$166.50 increase in aggregate demand.
c. $341.67. For this economy, an initial increase of $50 in consumer spending translates into a
$266.67 increase in aggregate demand.
d. $341.67. For this economy, an initial increase of $50 in consumer spending translates into a
$166.25 increase in aggregate demand.
19. Suppose an economy’s marginal propensity to consume (MPC) is 0.6. Then
a. 1 + MPC + MPC 2 + MPC 3 = 1.844 and, if we continued adding up terms in this geometric
series, we would get closer and closer to the multiplier value of 1.96.
b. 1 + MPC + MPC 2 + MPC 3 = 1.844 and, if we continued adding up terms in this geometric
series, we would get closer and closer to the multiplier value of 3.
c. 1 + MPC + MPC 2 + MPC 3 = 2.176 and, if we continued adding up terms in this geometric
series, we would get closer and closer to the multiplier value of 3.
d. 1 + MPC + MPC 2 + MPC 3 = 2.176 and, if we continued adding up terms in this geometric
series, we would get closer and closer to the multiplier value of 2.5.