159 Food - The data presented in support of the path taken by Amsterdam show 41 kilograms of food thrown away by each resident of the Netherlands per year. With the aim of halving this value in a decade, the city will provide specific policies addressed to hotels and restaurants for the recovery of food to be saved from waste and distributed to those who need it most. Feedstock - Amsterdam announces zero consumption of raw material in 2050, with waste discouraged by taxes to be shifted from work to consumption of feedstock and energy. This aspect even in order to make less expensive repairs. The reuse and repair circuits will be stimulated by the development of online platforms, to involve and spread the players of this regenerative economy. Housing - Amsterdam needs accommodation. In the wake of of Kate Raworth's theming, the Dutch version is building without overpassing the pollution objectives: to use the maximum amount of recyclable building products, to account for the carbon emissions released elsewhere in the world, in order to allow the construction of these buildings, and to put them on the scale by opposing, for example, a passport of the buildings, with indications on all of the used and reusable materials. Amsterdam is the first city in the world. Philadelphia, Portland and Oregon seem to be following it. New design has a meaning, which is balance. A circular object firmly resting on a plane. Everything works if we all play our part, moving between the two boundaries set for respect for the human being as for the planet hosting him. The line we must observe, says Raworth, is that of the sun that warms the earth and generates life. How to exploit this line is the question to be answered. The first question that a company must ask is: what do I have to do for the common good? How much is my impact on the planet worth? In Raworth's proactive language, the few negative data presented underline with strong evidence what we already know: two thirds of people in developed Countries have experienced a decline in the value of their income, in the last 30 years. The same proportion has seen his rights deteriorate. With the determination of those who want to put things back in their place, in Doughnut Economics. Seven ways to think like a 21 st -Century economist , Raworth places a new concept of family at the center of this economic model, starting from the fact that our brains are connected by empathy in collaborative initiatives and mutual help. The concept of Homo Oeconomicus is outdated, it is not tied to reality, a new family portrait needs to be done. We must take advantage of the potential of business, finance, common goods, States and human nature, which also includes the health of the planet. A doughnut. An inner and an outer circle. Dough represents the good space. Based on the UN sustainable development goals, the small ring stands as the minimum necessary to lead a good life and sets its indexes on access to food , water , housing, health services , education, income , gender equality and political expression . Below certain levels there is suffering, there is no prosperity. The largest ring defines the ecological limit beyond which man must not go, to avoid threatening his safety. The study parameters of the Doughnut Economy here define the negative drifts to which society is exposed, in case of irresponsible consumption of resources and virgin environment. An ecological ceiling beyond which biodiversity could disappear, ozone is depleted, water and soil resources are lost, seas are devastated. A life preserver shaped as a doughnut has already been seen in the sea. In Raworth's version, it is a way of conceiving our life, where economy, finance and society can all contribute with their respective genes and talents. mediatheque kate raworth, doughnut economics. seven ways to think like a 21 st -century economist , ed. random house business, 2017 www.kateraworth.com/animations www.ted.com/talks: kate raworth | TED2018, a healthy economy should be designed to thrive, not grow