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Dynamic cost efficiency in port infrastructure using a directional distance function : accounting for the adjustment of quasi-fixed inputs over time
Tovar, Beatriz, (2017)
Leverage and corporate performance : does institutional environment matter?
Weill, Laurent, (2008)
Using non-parametric technoligies to estimate returns to scale in the Iberian and international seaports
Carvalho, Pedro, (2012)
The measurement of efficiency of portuguese sea port authorities with DEA
Barros, Carlos Pestana, (2003)
Estimating the efficiency of the Portuguese bus industry
Barros, Carlos Pestana, (2005)
The dynamics of the mutualist movement in Portugal: a time series analysis
Barros, Carlos Pestana, (2001)