The economic growth model predicts that ▼ rich countries poor countries will grow faster than ▼ rich countries poor countries . which of the following best explains what is actually happening to real per capita gdps of countries?
a. most countries now have similar real per capita gdp levels.
b. lower-income countries have not caught up to higher-income countries at all.
c. poor countries are generally catching up with rich countries.
d. lower-income industrial countries are catching up with higher-income industrial countries.