This volume contains a selection of papers referring to lectures presented at the symposium "Operations Research 2004" (OR 2004) held at Tilburg University, September 1-3, 2004. This international conference took place under the auspices of the German Operations Research Society (GOR) and the Dutch Operations Research Society (NGB).

The symposium had about 500 participants from countries all over the world. It attracted academics and practitioners working in various fields of Operations Research and provided them with the most recent advances in Operations Research and related areas in Economics, Mathematics, and Computer Science.

The program consisted of 4 plenary and 19 semi-plenary talks and more than 300 contributed presentations selected by the program committee to be presented in 20 sections.

This open access book presents the scientific views of some fifty experts on how they believe the COVID-19 pandemic is currently affecting society, and how it will continue to do so in the years to come. Using the concept of a "common" (in the sense of common values, common places, common goods, and common sense), they elaborate on the transition from an Old Common to a New Common. In carefully crafted chapters, the authors address expected shifts in major fields like health, education, finance, business, work, and citizenship, applying concepts from law, psychology, economics, sociology, religious studies, and computer science to do so. Many of the authors anticipate an acceleration of the digital transformation in the forthcoming years, but at the same time, they argue that a successful shift to a new common can only be achieved by re-evaluating life on our planet, strengthening resilience at an individual level, and assuming more responsibility at a societal level.