The discussion follows the same methodology as that used by
Greenaway and Tuck, allowing not only the current situation to be
examined, but also the present to be compared directly with the situation
just over a decade ago (the figures used in their report are from the
1992-93 academic year, and the figures in this report are from the
academic year 2004-05 wherever possible). Throughout this analysis,
where we are trying to quantify something but are unsure of the exact
value, we estimate the lowest plausible figure, so as not to overstate the
impact and thus arrive at a prudent estimate of the impact of international
students on the UK.