Panel discussions

Is the circular economy running like clockwork or going round in circles? - Hall d’honneur

"Nothing is lost, nothing is created, everything is transformed," said Lavoisier back in 1789. Faced with the necessity of combating climate change, the circular economy sets out to reconcile growth and environment by changing the economic paradigm, encouraging all stakeholders to take responsibility for their actions: public authorities, producers and consumers. But where are we with all of this? Is the circular economy a new concept and a new model of prosperity or simply a more marketing-oriented way of talking about recycling?

  • From linear to circular – virtuous circle or vicious circle?
  • Produce more using fewer resources – how is it possible?
  • What overlap between the sharing economy and circular economy?
  • How should waste be managed in megacities?
  • Has Africa become the dustbin of the world?
  • How can we turn our waste into raw materials?
  • Is it all over for planned obsolescence?
  • Repair, reuse, recycle
  • What added value for customers?
  • What reduction in costs for companies?
  • How can we overcome social and cultural obstacles, and go further?


  • François-Michel Lambert: Chair, Institut de l’économie circulaire
  • Jean-Louis Chaussade: CEO Suez Environnment
  • Tatiana Reyes: Lecturer and researcher, CREIDD
  • Fabrice Bonnifet: Director of Sustainable Development, Bouygues

Smart cities: the challenges of the sustainable city – (9:30am-10:45am) – Plénière Malakoff Médéric

Tokyo has 38 million inhabitants, and New Delhi 25 million. Megacities are constantly growing and more than half the world's population now lives in cities. According to the UN, another 2.5 billion people will be added to the world's urban population by 2050. We therefore need to radically rethink the city, as managing urban areas is becoming one of the biggest challenges of the 21st century. What new urban models are possible? How can we design, build and manage sustainable cities? What smart means of transport can we devise to make our cities more accessible?

  • What will the city of tomorrow look like?
  • How can we restore and preserve urban biodiversity?
  • Eco-cities and eco-districts, and what role for mixed-income housing?
  • What governance for the sustainable city?
  • Underground, bike, tram, bus – with or without cars?
  • And flying taxis?
  • Children, women, young people, seniors – who will the sustainable city really benefit?
  • How can we put an end to wholesale closure of city shops?
  • Smart grids – when solar power meets the city
  • What role for companies in the city of the future?


  • John Rossant: Chairman, New Cities Foundation
  • Jacques Mulbert: CEO, ABB France
  • Gabrielle Gauthey : Director, Caisse des dépots
  • Ghislaine Alajouanine : President of the High Council of Tele-Health
  • Eric Mazoyer : Deputy Chief Executive Officer Bouygues Immobilier
  • Chantal Jouanno : Vice-President of the Ile-de-France Region

The power of optimism – amphi Harmonie Mutuelle

Even if moaning and complaining are part of our DNA, even if France is currently in the doldrums, enough of all this pessimism, and remember it doesn't hurt to laugh! Of course, not everything is going to be for the best in the best of all possible worlds and the media, which delights in bad news, does nothing for our optimism. But is that a reason to sink into depression and throw in the towel? Without lapsing into the excesses of absolute optimism à la Malebranche and without playing at being Candide, we shouldn't forget that behind disasters and threats, good news does exist: life expectancy continues to improve everywhere in the world, more and more people are escaping poverty, and scientific and technological advances open new doors every day. Of course, difficulties exist and it's not a question of denying them, but as Winston Churchill pointed out, "the pessimist sees difficulty in every opportunity; an optimist sees the opportunity in every difficulty." It's only enthusiasm that will allow us to be bold and undertake new business ventures. So let's stop complaining and mobilise all of our positive energy for a more confident society!

  • Is there always a solution?
  • Carpe diem
  • Flexibility, kindness and generosity
  • How can we keep our spirits up in the midst of turmoil?
  • Delusional optimism vs intelligent optimism
  • Unshakeable optimists – what are their secrets?
  •  Relearning to dream the future
  • Is optimism infectious?
  • Laughter as universal remedy – but can we laugh at everything?


  • Philippe Bloch: Founder of « Colombus Cafe », author and presenter at BFM radio
  • Haïba Ouassi: Attorney at Law, President of Club du XXIème Siècle
  • Jean-Louis Mercier: Chairman, Harmonie mutuelle
  • Malene Ridahl: Danish writer, author of « Happy like a Danish »
  • Sophie Vernay: President of Confiance&Croissance

Disrupt yourself! – Amphi Tocqueville

« Get off the beaten track, stop posturing, break the codes, overturn the established social and societal economic order... disruption is a method that has been spreading everywhere in recent years. The inventor of the concept, Jean-Marie Dru, sees it as “a dynamic methodology that accelerates the challenging of the conventions that hold back creativity and aids the emergence of new visions that lead to major innovations.” Disruption not only enables a rethinking of production and organisation methods, but also social relations and their relationship to politics. Are we ready then, in business and in society, to use this disruptive strategy to reconstruct our economic model and invent a new social contract?

  • What leads organisations into disruption?
  • Rupture or fracture?
  • How can we make disruption an innovation strategy?
  • Do we really need to break everything up?
  • How can we shake up conservatism and develop people’s mentalities?
  • How to make sure you don't always arrive too late
  • Does disruption prevent us from foreseeing the future?
  • Does it signify the end of an era?
  • What is its impact on hierarchical and social relations?
  • What role does social media play?
  • Is French-style social dialogue compatible with disruption?
  • Is a general process of disintermediation taking place? »


  • Alexandre Mars : Founder of Epic Foundation
  • Boris Derichebourg : CEO of Derichebourg Multiservices
  • Sandrine Losi: Lawyer at Capstan Avocats
  • Christian Nibourel: CEO of Accenture France  
  • Emmanuelle Favre : HR manager of Dior Couture