Rapid growing countries are most likely more evolved, think of the U.S. compared to smaller countries like those in Africa for example. We are more evolved and have more advantages than those in other places. Moderate growth countries have more to offer and have the materials to give people more chances making them want to come to that specific country. Shrinking countries most likely are shrinking because they do not offer better lives for people. They are probably unevolved and do not offer many good opportunities. So people are most likely to leave them. Without being more modern, they cannot offer the health support, education, or lifestyle people need.
