Some countries economy are constant and some economy rise and fall, from my understanding I suggest that is because of government,and population of the country. What is your suggestion
It all depends on what is in the country. These can be resources, first of all, these are always resources. They can be physical, such as oil, gas, and so on. Or they may be intelligent.
The most developed countries are rich in both. Look at the United States, the whole world depends to some extent on them.