Of the following high-income countries, which has the highest male life expectancy at age 65?

Knowledge capital is nonrival in the sense that

A) firms do not compete to be the first to develop new technologies. B) two people can use the same knowledge to develop and produce a product. C) no single company can be excluded from the benefits of new technologies. D) firms can benefit from the research and development of rival firms without paying for that benefit.

If you wanted to investigate whether a country was successfully developing, what information would you look for? What qualifications might you have to make to the data you have put together?

What will be an ideal response?