Answer:
$80 billion
Explanation:
Okun law equation: GDP gap = Actual GDP * ((Unemployment rate - Natural rate)/100)*2)
GDP gap = $4,000 * ((6-5)/100*2)
GDP gap = $4,000 * 0.02
GDP gap = $80 billion
Therefore, $80 billion in an output level thus, would be what the economy would have sacrificed.