Answer:
1. 0.7
2. 3.3
3. -$210
Explanation:
1. The marginal propensity to consume refers to the amount that is spent on consumption for each of the extra income earned. Therefore, the marginal propensity to consume (MPC) is equal to 0.7.
2. The multiplier is calculated as follows:
Multiplier = 1 ÷ (1 - MPC)
= 1 ÷ (1 - 0.7)
= 3.33
3. A reduction in the government purchases by $300 billion then this will reduce the income level of the consumers and change the consumption level as follows:
= Change in government purchases × MPC
= $300 billion × 0.7
= -$210