Final answer:
The best indicator of a country's ability to use technology to leap several stages of economic development in a very short time is the country's focus on developing and using new technology.
Step-by-step explanation:
The best indicator of a country's ability to use technology to leap several stages of economic development in a very short time is the country's focus on developing and using new technology. Countries that are high-income tend to prioritize technology development and innovation, which allows them to make rapid advancements.
Additionally, the presence of supportive economic, educational, and public policy institutions is crucial for a country to effectively adapt and utilize new technology.