Second, there is no reason to believe there will be a large flow of labour migration to this country from these states after accession. Experience to date supports this view. Previous enlargements of the European Union were accompanied by fears of a "flood" of nationals of the new member states entering the Union which never materialised. The many studies carried out in this area in recent years do not support the argument that there will be large, disruptive flows to the labour markets of most existing member states.