This book gathers selected high-quality papers presented at the 31st European Conference on Operational Research, which was held in Athens, Greece on June 11-14, 2021. It highlights the latest advances in the application of operations research (OR) to technology-driven areas in business,...

Foreign exchange risk hedging policy: Evidence from France -- Use of Financial Instruments among the Chilean households -- IFRS 9 -Financial Assets: Debt Instrument Classification and Management under the new Accounting Standard. A case study of Greek Government Bonds, in Banks’ Investment...

Roman Słowiński and His Research Program: Intelligent Decision Support Systems Between Operations Research and Artificial Intelligence -- Roman’s Scientific Trajectory: A Retrospective with an Emphasis on the Beginning -- ELECTRE Methods: A Survey on Roman Słowiński Contributions -- How...