When the government decides to reduce government purchases by $250 billion, this will bring about a $175 billion increase in income.
The increase in the income of the government would be
= $250 × 0.7
= $175 billion
This would then cause a change in income that is
= $175 billion × 0.7
= $122.5 b
The overall change in demand resulting from the initial change in is going to be
= $250 × 3.33 = $833 b
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