Acknowledgements This book is the result of a rather long writing process marked to conduct a face-to-face interview. This demanding context by the Covid-19 pandemic in 2020-2021, but above all by several explains why our studies of the six cities focused on identifying types of collaboration. what the municipal teams in charge of urban policy had said, were saying, and were publishing about their projects and achievements The Bouygues-HEC Paris Chair entitled 'Smart City and the to make their cities more sustainable. Common Good' was officially ratified in June, and launched in October 2020. Since then, it has enabled the development of The genesis of this book has therefore benefited from the support of numerous interactions and exchanges between the Bouygues many people. We would like to first thank Gilles Zancanaro, Senior group and HEC Paris. Among the first notable achievements, Vice President-Digital, Innovation & Risks at Bouygues SA, and a business case, entitled Montrennoble, has been written. It sponsor of the 'Smart City and the Common Good' Chair, Philippe simulates the responses of companies to the expectations of a Cuenot, Group Director of Innovation and Social Development, large city. For its part, this ebook represents another outcome. and Marianne Gallon, Group Director of Career Development, as It is devoted to the challenges of tomorrow's city and offers well as all the members of the Chair's Steering Committee, Yves an assessment of six cities in the world, all exemplary in their Legrand, Director of Technical Operations at Bouygues Telecom, policy choices and orientations in terms of mobility, energy Etienne Gaudin, Director of Development and Mobility at Colas, saving and citizen participation, and many other dimensions. Arnaud Mopin, Director of Innovation at TF1, Gérard Lodetti, Deputy Managing Director of Linkcity, Claire Boilley Forestier, Head of At HEC Paris, the Department of Corporate Partnerships and Sustainable Development at Bouygues Construction, Yann Aubry, Public Funds, jointly with Bertrand Quélin, spent nearly ten Managing Director of Urbanera, Stéphane Slama-Royer, Deputy months negotiating the content and scope of the Chair with Managing Director Île-de-France at Linkcity, as well as the thirty various players in the Bouygues group. This HEC department also or so executives and managers who have agreed to be interviewed worked to successfully launch the Chair during the first year of the between October 2020 and March 2021. pandemic. It initiated various events to give concrete expression to this partnership and strengthen the links with the Bouygues group. In parallel, numerous exchanges with Christophe Lienart and Michele Dominici of the Group Innovation Department at In close collaboration with the Society and Organizations Bouygues SA, as well as the fruitful collaboration with Isaure Institute at HEC Paris, this Chair naturally contributes to Fraissinet, a graduate of the HEC MSc SASI, first an intern at advancing our knowledge of the major issues of tomorrow's city, Bouygues, then hired by the same group, have enabled the its carbon footprint, and the effective solutions to be found to progress of this ebook project. meet the challenges of climate change and urban demographic concentration. On the side of HEC Paris, we warmly thank Eloic Peyrache, General Director and Dean, Jacques Olivier, Dean of Faculty Lastly, the Bouygues-HEC Paris 'Smart City and the Common and Research, and Raphaëlle Gautier, Director of Corporate Good' Chair has enabled us to deepen our collaboration with Partnerships and Public Funds, as well as Elisabeth Puigrenier various HEC programs, including the Sustainability & Social and Nathalie Conrard from the same department. Innovation (SASI) and Strategic Management MSc programs, as well as with the start-ups and entrepreneurs who revolve For the Society and Organizations Institute, the loyalty of around Station F in Paris. its founder Rodolphe Durand, Professor at HEC Paris, the support of Bénédicte Faivre-Tavignot, Executive Director, and In sum, placing this book under the sign of the Chair and of the the competence of Laurianne Thoury have made this project collaboration implies, of course, highlighting how the collaboration possible. took shape between the two co-authors. The writing process began under the classic auspices of a student's work with a professor, Our thanks would be incomplete if we did not mention Jean even before the Chair was officially signed. The scope of the project Berrut, Julien Guery, Benoit Gufflet, François Pitti, Dimitri and the quality of the collaboration made it possible to become Kremp, Lionel Pancrazio, and Virginie Savina, as well as Tom aware of the urban challenges and the exemplary nature of the Corkett, a demanding copy editor, and the support of Nathalie solutions initiated and started by certain large cities in the world. Régnier, department assistant at HEC Paris. The project has taken shape. However, health conditions gradually reduced the ability to travel and focused the interviews with the We would like to thank all of them for the warm welcome given different actors on technological media: it was almost impossible to this ebook project. 3 Quélin and Smadja | HEC PARIS | SMART CITIES | The sustainable program of six leading cities | 2021