Ilias is involved in several other Cedefop projects (including Mismatch priority occupations and Skills governance). Ilias is an economist by training, with a PhD in employment research from the University of Warwick, where he worked for a number of years prior to joining Cedefop. His expertise is in labour economics, education economics, and industrial relations. Ilias has published articles in various top-ranking journals including: Industrial Relations: a Journal of Economy and Society, Regional Studies, Industrial and Economic Democracy, Journal of Economic Studies, Education Economics, Applied Economics Letters, Higher Education, the International Journal of Manpower, Personnel Review, and the Journal of Labour Research.