The European Skills Index (ESI) aims at measuring the performance of a country’s skills system taking into account three main aspects: skills development, skills activation and skills matching. These pillars are used to organise and aggregate 15 individual indicators into a single summary measure. The index is developed by the European Centre for the Development of Vocational Training (CEDEFOP).

This audit was performed by the European Commission’s Competence Centre on Composite Indicators and Scoreboards at the Joint Research Centre (JRC) and was conducted upon invitation of the index developers. The analysis herein aims at shedding light on the transparency and reliability of the ESI model and thus to enable policymakers to derive more accurate and meaningful conclusions, and to potentially guide their choices on priority setting and policy formulation.