As risks of all sorts, from economic and financial crises to terrorism acts and pandemics, keep on characterising and affecting all aspects of life globally, at the individual and societal level, national and international organisations, as well as governments, need to be constantly adapting and...

Introduction to GAMS -- Introduction to Data Envelopment Analysis -- Extensions of DEA models -- Non-radial DEA models -- Allocative, cost, technical, revenue, and profit efficiency -- Special cases in DEA -- Productivity change -- Concluding remarks.