Wage effects of skill mismatches across domains: the importance of ICT skills

To date, it is unclear in which skills mismatches are most relevant for individuals' wages, and whether surpluses or deficits in one domain can offset those in another. This study addresses these gaps by examining how mismatches in five key skill domains (ICT, reading, mathematics, science, and reasoning) are linked to individuals' wages. Utilizing data from the 2016 wave of the German National Educational Panel Study (NEPS) Adult Cohort, our findings reveal that skill deficits consistently result in lower wages, whereas surpluses do not pay off in each domain. Notably, mismatches in ICT skills are most significant for individuals' wages: ICT deficits not only reduce wages, but can also negate wage benefits from surpluses in other skills. Conversely, ICT surpluses can compensate for wage penalties associated with deficits in other domains. These findings underscore the importance of digital skills for productivity and wage potential in the modern labour market.