Abstract: Recent empirical literature warns about the negative impact that skills mismatch can have on individuals and economies as a whole. At the individual level, over-qualification and over-skilling entail lower earnings, lower job satisfaction and a higher risk of unemployment relative to well-matched workers (OECD, 2015 (forthcoming); Quintini, 2011). At the aggregate level, skill and qualifications mismatch are associated with lower labour productivity within industries (Adalet McGowan and Andrews, 2015)