Malmquist-Type Indices in the Presence of Negative Data: An Application to Bank Branches
Maria Conceição Silva Portela, Emmanuel Thanassoulis
Journal of Banking and Finance, vol. 34, 2010, p. 1472-1483.

Malmquist Indexes Using a Geometric Distance Function (GDF): Application to a Sample of Portuguese Bank Branches
Maria Conceição Silva Portela, Emmanuel Thanassoulis
Journal Of Productivity Analysis, vol. 25, 2006, p. 25-41.

Finding Closest Targets in Non-oriented DEA Models: The Case of Convex and Non-convex Technologies
Maria Conceição Silva Portela, Pedro Castro Borges, Emmanuel Thanassoulis
Journal Of Productivity Analysis, vol. 19, 2003, p. 251-269.

School Outcomes: Sharing the Responsibility between Pupil and School
Emmanuel Thanassoulis, Maria Conceição Silva Portela
Education Economics, vol. 10, 2002, p. 183-207.