José L. Groizard Universitat de les Illes Balears   Palma de Mallorca, 07122 Spain   joseluis.groizard@uib.es   http://www.uib.es/depart/deaweb/webpersonal/jlgroizard/en/index.html           JEL Areas: F1 : Trade: General J3 : Wages, Compensation, and Labor Costs: General