Disentangling the Cost Efficiency of Jointly Provided Water and Wastewater Services
Pedro Carvalho, Rui Cunha Marques, Nuno Ferreira da Cruz
Utilities Policy, vol. 24, 2013, p. 70-77.

A Meta-regression Analysis of Benchmarking Studies on Water Utilities Market Structure
Pedro Carvalho, Rui Cunha Marques, Sanford Berg
Utilities Policy, vol. 21, 2012, p. 40-49.

Governance and comparative performance of Iberian Peninsula seaports. An application of non-parametric techniques
Pedro Carvalho, Rui Cunha Marques, Álvaro Fonseca, Pedro Simões
International Journal Of Transport Economics, vol. 37, 2010, p. 31-51.