Seven ways to think like a 21st century economist. The current economic paradigm doesn't work. The crisis did not only show the structural problems and the perverse incentives of the system, but also that the theory behind it is hopelessly outdated. Never-ending growth, the rational man that only acts on self-interest, linear economy; all of these ideas belong to the past, not the future. All around us we see the rising urgency for a new economy. And it looks like a doughnut. A metaphor for the external ecological boundaries, which we cannot cross, and the internal social foundation of human rights, which we need to safeguard at all times. A new design, with new values for a new economy: Kate Raworth presents us the economic model for the 21st century.