For the sake of balance it is, of course, important to aim at relatively modest net migration flows. It is evident, for example, that population ageing will affect all EU countries; it is unlikely that any of them will be able to handle the challenge primarily by attracting young population from other EU countries.
Migration is – and of course has to be – primarily market-driven. To the extent that changes in the production structure seem unavoidable, they should not be retarded through economic policy; rather, support should be provided in the event of problems caused by these changes.