How does a change in growth rate from 2% to 3% affect the doubling time of an economy's GDP?

• A. It has no effect on the doubling time.
• B. It increases the doubling time by approximately 11.67 years.
• C. It decreases the doubling time by approximately 5 years.
• D. It decreases the doubling time by approximately 11.67 years.

Answer: (D)