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Productivity change in the water industry in England and Wales: Application of the meta-Malmquist Index
Portela, Maria C.A.S., (2011)
Profitability of a sample of Portuguese bank branches and its decomposition into technical and allocative components
Portela, Maria C.A.S., (2005)
Developing a decomposable measure of profit efficiency using DEA
Portela, Maria C.A.S., (2007)