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First Author:
 
Pedro Cosme Vieira
Faculdade de Economia do Porto
pcosme@fep.up.pt
 
R. Dr Roberto Frias, 80
Porto, 4200-464, Portugal
 
 
 
www.fep.up.pt/docentes/pcosme

Second Author:

Abel Fernandes
Faculdade de Economia do Porto
Abel@fep.up.pt