1. A. Alba, and R. Freeman (1990 ) "Jobfinding and Wages when Longrun Unemployment is Really Long: the Case of Spain ", Working Paper No. 3409, NBER.
2. Unemployment benefit, duration and incentives in Britain
3. I. Cebrian, L. Toharia, and L. Garrido (1991 ) "El paro de larga duracion en Espana ", Paper presented at Las Jornadas Tecnicas sobre Paro de Larga Duracion launched by the INEM, Madrid.
4. I. Cebrion, and L. Toharia (1992 ) "Long-terra Unemployment in Spain and the United Kingdom: A Comparative Analysis ", Paper presented at the EALE IV Conference, Warwick.