ABSTRACT
The research project which has facilitated this book has taken into account two fieldworks in Barcelona and two in Lisbon. In Barcelona, fieldwork was carried out from June to August 1996, and from June to December 1997 (plus a few short visits to interview some informants in 1998 and 1999). In Lisbon, the first fieldwork took place from December 1997 until May 1998, and the second one in May-June 1999.
