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1 June, 06:31

Suppose that an initial $20 billion increase in investment spending expands GDP by $20 billion in the first round of the multiplier process. Also assume that GDP and consumption both rise by $16 billion in the second round of the process. Instructions: Round your answers to 1 decimal place. a. What is the MPC in this economy? b. What is the size of the multiplier? c. If, instead, GDP and consumption both rose by $18 billion in the second round, what would have been the size of the multiplier?

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  1. 1 June, 10:07
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    a. 0.8

    b. 5

    c. 0.9 and 10

    Explanation:

    a. The formula to compute the MPC is shown below:

    = (Change in consumption) : (Change in investment income)

    = $16 billion : $20 billion

    = 0.8

    b. The formula to compute the size of the multiplier is shown below:

    = 1 : (1 - MPC)

    = 1 : (1 - 0.8)

    = 1 : 0.2

    = 5

    c. If the change of the consumption increases, then the MPC would be

    = (Change in consumption) : (Change in investment income)

    = $18 billion : $20 billion

    = 0.9

    And, the size of the multiplier would be

    = 1 : (1 - 0.9)

    = 1 : 0.1

    = 10
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