The search for gain — which drives shareholder returns, speculative trading and interest-bearing loans — lodges dependency upon continual GDP growth … - Kate Raworth

Below the Doughnut’s social foundation lie shortfalls in human well-being, faced by those who lack life’s essentials such as food, education and housing. Beyond the ecological ceiling lies an overshoot of pressure on Earth’s life-giving systems, such as through climate change, ocean acidification and chemical pollution. But between these two sets of boundaries lies a sweet spot — shaped unmistakably like a doughnut — that is both an ecologically safe and socially just space for humanity. The twenty-first-century task is an unprecedented one: to bring all of humanity into that safe and just space.

drop the economist’s beloved notion of ‘externalities’, those incidental effects felt by people who were not involved in the transactions that produced them — such as toxic effluent that affects communities living downstream of a river-polluting factory, or the exhaust fumes inhaled by cyclists biking through city traffic. Such negative externalities, remarks the ecological economist Herman Daly, are those things that ‘we classify as “external” costs for no better reason than because we have made no provision for them in our economic theories’.21 The systems dynamics expert John Sterman concurs. ‘There are no side effects — just effects,’ he says, pointing out that the very notion of side effects is just ‘a sign that the boundaries of our mental models are too narrow, our time horizons too short’.

Instead of immediately focusing on making markets work more efficiently, we can start by considering: when is each of the four realms of provisioning — household, commons, market and state — best suited to delivering humanity’s diverse wants and needs? What changes in technology, culture and social norms might alter that? How can these four realms most effectively work together — such as the market with the commons, the commons with the state, or the state with the household? Likewise, rather than focusing by default on how to increase economic activity, ask how the content and structure of that activity might be shaping society, politics and power. And just how big can the economy become, given Earth’s ecological capacity?