Sustainability
Required readings:
- Raworth, K., 2012, A Safe and Just Space for Humanity: Can We Live within the Doughnut? Oxfam Discussion Papers
- Nordhaus, W., “Why climate policy has failed” Foreign Affairs, October 12th 2021
| Lecture handout: Sustainability |
Here’s how to visit the grave of J.B. Say. Here is a photo from a book written by Richard Cantillon, published in 1755, which uses the word “entrepreneur”.
Here is the Outdoor Boys video about building a snow shelter:
Here is the Bushradical video about building a log cabin in the woods:
Here’s a nice visual showing different carbon pricing initiatives:

In October 2025 Nature published the following article:
- Fanning, A.L., Raworth, K. (2025) “Doughnut of social and planetary boundaries monitors a world out of balance.” Nature 646, 47–56
It’s really quite remarkable that the world’s most prestigious scientific journal published what is little more than a consultanty op-ed.
Here is a TedX talk about the doughnut model:
Some spinning donuts (you see! it is meant to be measured after all!):
Yes! At last… Watch national Doughnuts changing over time. Published today: 150 countries, 1992-2015. Eye-opening & powerful work by @AndrewLFanning & coauthors. Check out the website – an incredible teaching resource… https://t.co/8D59jZ9TMp pic.twitter.com/PwMYZwHc3g
— Kate Raworth (@KateRaworth) November 18, 2021
Here is a savage review:
- Andrew Lilico: ‘Doughnut Economics’ by Kate Raworth, June 24th 2024 – including this zinger: “I can safely say I have never hated a book more than this one… It makes assertion after assertion about economics that is simply false, and even if the initial assertion were true, what is done with that assertion would still be wrong… We don’t need to reinvent economics. We just need to understand it properly and apply it correctly and with imagination. Unfortunately, reading this book will not help you to achieve any of that.”
And here is an academic review:
- Acharya, Ashruta and Geloso, Vincent and Psurek, Aleksander, “The Hole in the Doughnut: Formalizing and Testing a Key Model of Degrowth” (July 21, 2025). GMU Working Paper in Economics No. 25-23 – From the abstract: “we find no empirical support for the model’s core prediction. If anything, the sign is often the opposite of the one predicted.”
The iconic earthrise photograph was taken in 1968. In 2026 the Artemis II crew flew around the dark side of the moon and took another stunning image (see here for more). Notice the northern lights, and Venus. And it was taken with an iPhone.

After the collapse of communism there was a well-known problem within the environmental movement,
“Creating Green parties in much of Eastern Europe was a uniquely difficult process, in large part because of “melons” and “cucumbers” (melons are green on the outside but red inside; cucumbers are green all the way through” (Feffer, J., 1999, Shock Waves, p.171)
Degrowth
Jason Hickel’s book ‘Less is more‘ argues that we need to “shift to a post-capitalist economy that is focused on human well-being and ecological stability rather than on perpetual growth”. Here are my 5 main criticisms of the degrowth movement:
- It relies on bad economics. In a seminal article published in a highly prestigious journal, Degrowth can work — here’s how science can help, Nature, December 12th 2022 – Hickel et al claim that economic growth is based on production for its own sake and the necessary depletion of natural resources required to fuel it. But this is a fundamental misconception of economics, which is about increasing utility (i.e. people’s subjective judgment of what improves the quality of their life) in the most efficient way possible. As Sam Bowman said, economic growth is about “innovations that use fewer resources & less labour to produce more wellbeing – the [exact] thing the blurb says we should do”.
- Growth is one of the biggest parts of the solution to our environmental problems. We have successfully decoupled a lot of the negative impact of growth and therefore there’s no fixed trade off between material betterment and environmental protection. In fact, rich countries are growing as their environmental footprint falls (see “The shrinking arguments for degrowth” by John Burn-Murdoch, The Financial Times, June 26th 2026). In addition, the best way to fix our environmental problems is through technology – as Hannah Ritchie has argued, recent breakthroughs in the batteries required for electric vehicles, or low cost solar panels, are a result of economic growth (Ritchie 2024, p.35).
- Policymakers in rich countries have been prioritising environmental protection over economic growth for over 50 years. Growth rates have become very low in advanced countries (particularly since 2008) and this is because of degrowth arguments. In Degrowth and the Monkey’s paw (by Stian Westlake, Works in Progress, May 15th 2023), Westlake points out that “the UK has been remarkably successful in weaning itself off its growth addiction. I’m surprised that supporters of degrowth don’t celebrate these charts more.”
- If the argument is for a more extreme response, then this is not compatible with democracy. Martin Wolf has pointed out that, “The transformation… could only be implemented by a dictatorship, and a global dictatorship at that. No such regime is (happily) in prospect. That is at best unrealistic utopianism. At worst, it is yet another in a long succession of “progressive” calls for tyranny” (Wolf 2023, p. 223).
- Much of what passes as the “degrowth” scientific literature is in fact opinion pieces or aspirations. In Savin, I, and van den Bergh, J., 2024, “Reviewing studies of degrowth: Are claims matched by data, methods and policy analysis?“, Ecological Economics, Volume 226, the authors provide a comprehensive survey of 561 articles from the degrowth literature. They find that: “the large majority (almost 90%) of studies are opinions rather than analysis; few studies use… data… most studies offer ad hoc and subjective policy advice… various studies represent a “reverse causality” confusion, i.e. use the term degrowth not for a deliberate strategy but to denote economic decline (in GDP terms) resulting from exogenous factors or public policies; [and] few studies adopt a system-wide perspective – instead most focus on small, local cases without a clear implication for the economy as a whole.”
A desire to overthrow the economic system on environmental grounds is therefore misguided and counter productive.
Depopulation
Paul Erlich’s ‘The Population Bomb’ warned that we would be unable to feed a growing global population and that the solution was to reduce birthrates. He said “we can no longer afford merely to treat the symptoms of the cancer of population growth; the cancer itself must be cut out”. Suggested methods included adding sterlients to the food supply (see Ritchie 2024, p.155). That didn’t happen, but fears about overpopulation were so influential it led to the sterilisation of 8 million Indian men. And yet as of January 2023 Paul Erlich was still receiving media coverage when warning about unsustainable growth. Note:

When David Attenborough made his comment about being a madman or an economist, it was in the context of over population. Paul Erlich passed away in 2026 and I found this response particularly poignant.

As the lecture argues, we are more than capable of providing good living standards for the population. And if you are worried about exponential population growth then don’t be. Population growth has fallen from over 2% in the 1960s to 0.8% by 2022. We have now passed “peak child”, with the highest number of children peaking in 2017. The global population is expected to stabilise below 11bn. It turns out that when you are successful at reducing poverty people tend to have fewer children. We have sufficient natural resources as well as the socio-economic system necessary to support a thriving global population. Like John Lennon, we do not need to be concerned about overpopulation:
John Lennon “Overpopulation is a myth” 1971 pic.twitter.com/WINj8iEUYG
— Historic Vids (@historyinmemes) January 30, 2023
Recommended books
- Ridley, M., 2011, The Rational Optimist, Fourth Estate
- Munger, M., 2019, Is Capitalism sustainable?, American Institute for Economic Research
- Rosling, H., 2018, Factfulness, Sceptre
- Tupy, M.L., and Pooley, G.L., 2023, Superabundance, Cato Institute
- Ritchie, H., 2024, Not the end of the world, Chatto & Windus
| Lecture handout: Sustainability Survey |
Recommended podcasts
- “Episode 23: Mike Munger – Is capitalism sustainable?” The Curious Task podcast, January 8th 2020
- “Edward Glaeser – Cities, terrorism, housing and remote work”, the Lunar Society podcast with Dwarkesh Patel, November 28th 2022
| Learning Objectives: This session considers whether infinite growth is possible on a planet with finite natural resources.
Spotlight on sustainability: Doh! |
This course will develop students capacity for economic analysis and awareness of the most important insights for management.


This course considers different ways of understanding the concept of justice, and how managers can apply these insights within an organisational setting. 





