Suppose that in 2020 national income is equal to $20 trillion and consumption is $14.0 trillion. In 2019, with income of $20.8 trillion, consumption increased to $14.6 trillion. Calculate the marginal propensity to consume.Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer.a.6b.25c.75d.95e1.00
Question
Suppose that in 2020 national income is equal to 14.0 trillion. In 2019, with income of 14.6 trillion. Calculate the marginal propensity to consume.Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer.a.6b.25c.75d.95e1.00
Solution
The marginal propensity to consume (MPC) is calculated as the change in consumption divided by the change in income.
From the problem, we know that:
- In 2020, income is 14 trillion.
- In 2019, income was 14.6 trillion.
So, the change in consumption from 2019 to 2020 is 14.6 trillion = -$0.6 trillion.
The change in income from 2019 to 2020 is 20.8 trillion = -$0.8 trillion.
Therefore, the MPC is -0.8 trillion = 0.75.
So, the answer is c. 0.75.
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