Which of the following represents an increase in labor productivity?(1 point)

To determine which scenario represents an increase in labor productivity, we can calculate labor productivity as GDP divided by total labor hours.

1. First scenario:

   • GDP: $200 billion to $400 billion (final GDP = $400 billion)
   • Labor hours: 50 million to 100 million (final labor hours = 100 million)
   • Labor productivity = GDP / Labor hours = $400 billion / 100 million hours = $4,000 per hour

2. Second scenario:

   • GDP: $400 billion to $200 billion (final GDP = $200 billion)
   • Labor hours: 75 million to 50 million (final labor hours = 50 million)
   • Labor productivity = $200 billion / 50 million hours = $4,000 per hour

3. Third scenario:

   • GDP: $400 billion to $200 billion (final GDP = $200 billion)
   • Labor hours: 100 million to 50 million (final labor hours = 50 million)
   • Labor productivity = $200 billion / 50 million hours = $4,000 per hour

4. Fourth scenario:

   • GDP: $200 billion to $400 billion (final GDP = $400 billion)
   • Labor hours: 50 million to 75 million (final labor hours = 75 million)
   • Labor productivity = $400 billion / 75 million hours = $5,333.33 per hour

Now, we can compare the final labor productivity of each scenario:

• Scenario 1: $4,000
• Scenario 2: $4,000
• Scenario 3: $4,000
• Scenario 4: $5,333.33

Among these, the fourth scenario has a higher labor productivity than the others, indicating an increase in labor productivity.

Thus, the correct answer is:
GDP increased from $200 billion to $400 billion, while total labor hours increased from 50 million to 75 million.