Brain drain and reverse brain drain go around in cycles.
For instance, highly skilled workforce went to US and UK to work, because of lack of jobs in their country. Now, they are coming back to India, and effectively are reversing the brain drain that had hit india when they left. This is leaving USA with a reverse brain drain. So when India has fully developed, and become an MEDC, what'll happen is that highly skilled workforce will go to India to work, come back to USA to help USA and India will suffer another brain drain.
Now to question is, how can brain draink be prevented? Brain drain is currently happening in Iran, India (it's slowly reversing here), Pakistan, Lebanon and Saudi Arabia
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