Portugal,, Pedro Short and long-term unemployment : a parametric model with time-varying effects / Pedro Portugal, John T. Addison

Short and long-term unemployment : a parametric model with time-varying effects / Pedro Portugal, John T. Addison . - Porto : Faculdade de Economia do Porto, 1993 . - 18, [9] f. 30 cm . - (Investigação., Economia; 34)(Trabalhos em curso)
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