What about rich returnees?

It has promoted the economic development of importing countries.

Rich marine immigrants have promoted the economic development of importing countries. The influx of wealthy immigrants has brought a lot of wealth and financial investment to importing countries, which has played a very good role in promoting the economic growth of importing countries.

Rich-sea immigration means that China is in the third wave of immigration, and going abroad with a lot of wealth has become the biggest feature of immigration at this stage.