I'm not sure what economic migration is. Economic for whom? I'm not taking a side by asking, merely wondering.
"Economic migration" is a (usually derogatory) term for moving into a country to earn more money, with no desire to adapt to the culture of your new home.
see my response to danielheath.
"Economic migration" is a (usually derogatory) term for moving into a country to earn more money, with no desire to adapt to the culture of your new home.