Hannan, D., E. Smyth and S. McCoy (1999). A Comparative Analysis of Transitions from Education to Work in Europe (CATEWE) Volume 1 / 1. A Conceptual Framework 2. Demographic and Economic Changes, ESRI Working Paper 118(a), Dublin: ESRI, https://www.esri.ie/publications/a-comparative-analysis-of-transitions-from-education-to-work-in-europe-catewe-volume-1-1-a-conceptual-framework-2-demographic-and-economic-changes