Resume
This work is cataloged in the Scientific Portal. Officially published in Investigación Económica (2013). Referenced as: "Silva, Armando Mendes Jorge Nogueira da; Afonso, Oscar; Paula Africano, Ana".
The complete abstract and full text can be accessed directly at the official DOI: https://doi.org/10.1016/s0185-1667(13)72589-x