An economy that is distributive by design is one whose dynamics tend to disperse and circulate value as it is created, rather than concentrating it in ever-fewer hands. An economy that is regenerative by design is one in which people become full participants in regenerating Earth’s life-giving cycles so that we thrive within planetary boundaries. This is our generational design challenge, and its possibilities are explored in Chapters 5 and 6. But what kind of systems-thinking economist can help to make it happen?