Floodgates or turnstiles? Post-EU enlargement migration flows to (and from) the UK / IPPR, 30 April 2008
http://www.ippr.org/members/download.asp?f=/ecomm/files/floodgates_or_turnstiles.pdf&a=skip
"To mark the fourth anniversary of the enlargement of the European Unionin 2004, ippr has undertaken a major study that aims to provide as definitive a picture of post-enlargement migration flows to and from the UK as possible. This report presents fresh evidence on the scale and nature of migration from the eight new Central and Eastern European countries that joined the EU in 2004 and, to a lesser extent, from Romania and Bulgaria, which joined in 2007."