 However, they thought it would ensure lower immigration levels and the ability to claim back national sovereignty, even though most were not wary of the repercussions or did not think it would make any difference at all.Academics James Dennison and Noah Carl argue that "the most important phenomenon to be explained vis-à-vis the referendum result in our view is that a sizable Eurosceptic faction has remained extant in Britain over the last four decades".Using data from the Eurobarometer survey they showed that fewer Britons considered themselves European than any other EU nationality.