Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
This paper aims to find a suitable definition of a low skilled worker, that can be applied in a consistent way across the various countries of the European Union. The International Standard Classification of Education (ISCED) is identified as the most suitable means of measuring skills over time and space, as those individuals categorised as less than ISCED 3 are labelled "low-skilled". The paper then uses three international surveys of educational performance to justify this choice. It is shown that those in the Copyright 2001 by Oxford University Press.