Hence, the Herman Daly Question: If the economy is a subsystem of the biosphere, and the biosphere has limits, why do we organise economic policy around the assumption that growth can continue indefinitely?
Well, I actually had this discussion with Daly himself. In which I pointed out that GDP is value added, growth in GDP is therefore an increase in value added and that – therefore – the ecology is not the binding limit upon economic growth. Knowledge of how to add value is. His response was splutter.
I did not come up with that point, obviously, it’s just the standard economic point to make about it.
Sure, sure, the number of copper atoms on the planet is a – large – fixed number so there’re only so many copper atoms we can use while remaining on this planet. So, sure, the environment produces a limit for us. As does the supply of fresh water, the temperature, the existence of bees and so on and on. They are indeed limits to growth along certain axes.
But they are not the binding limit. As we can actually derive from Daly himself. Imagine we achieve that steady state economy – which he defines as one in which we do abstract new resources but only as a sustainable rate. OK, does growth therefore cease? Nope, it continues to grow at the speed at which we gain new knowledge about how to add further value to whatever limitation of resources we face.
Economic growth is dependent upon knowledge, not resource availability. Therefore resources availability is not the binding constraint upon economic growth.
Daly distinguished between growth and development. He argued that growth means an increase in the physical scale of the economy, involving more extraction, production, and consumption. Development, however, means improvement in quality, requiring better technology, better organisation, and greater wellbeing without necessarily expanding material throughput.
All Daly has done is insist upon the same thing as standard economics. Which I pointed out to him and the response was splutter.
Imagine my surprise at Spud not getting this.