Maria Silva is Full Professor at the Catholic University, Porto, Portugal. She has got aMSc degree in Management Science and Operational Research from Warwick University in the U.K and a PhD degree in Management Science from Aston University, UK, and the ‘aggregation’ degree by Portuguese Catholic University. She has co-authored more than 35 refereed academic publications in the efficiency and productivity analysis area, including applications of Data Envelopment Analysis. She has co-authored, various book chapters like in Cooper W. W. et al. (2004) Handbook on Data Envelopment Analysis and the chapter ‘DEA—The Mathematical Programming Approach to Efficiency Analysis’, in The Measurement of Productive Efficiency and Productivity Growth (H. Fried, et al. (eds), 2008 Oxford University Press). She has applied the DEA technique in various fields including schools, bank branches, water companies, retail outlets, primary health care General Practice units and hospitals. She has also been the leading researcher of 3 projects financed by the Portuguese Foundation of Science and Technology, who resulted in the development of benchmarking websites for secondary schools and hospitals in Portugal, and is currently involved in a Cost project on the efficiency of justice. She has been also involved in consultancy work and acts as Associate Editor of the Journal of Productivity Analysis and is a former associate editor of Omega. She has been involved in several administrative roles in her university like Management MSc director for 3 years, or president of the scientific council for 2.5 years, and she is currently Associate Dean For Research Innovation and Sustainability