«The Home Secretary has long argued that freedom of movement rules should be a priority target for the EU renegotiation — not only is she personally committed on the issue, she surely knows that the repeated failure to hit the Government's
stated migration target threatens her reputation as a minister.
In Shanghai, for example — which had the highest mean PISA score of any jurisdiction in mathematics in 2012 — 27 percent of students in the
target population of 15 - year - olds did not take the test, due in part to internal
migration policies that prevented enrollment; in the United
States, that exclusion rate was around 11 percent.