(BBC News) Three million migrants are likely to arrive in Europe by 2017 as the record influx via the Mediterranean continues, the European Commission says.
The EU's executive arm said the influx would have a "small but positive" effect on EU economic output, raising GDP by 0.2-0.3%.
The influx will raise the EU population by 0.4%, the Commission forecasts, taking account of failed asylum claims.
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The flow of Syrian refugees to Europe shows no sign of abating, the UN says.
