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My rejection of over-population as a problem is shaped by being familiar with the rejection of Malthus, made explicit my American commentators and economists in the 1800s. Most especially, look at Henry Carey's 1851 Harmony of Interests, in which he assailed British economics.

Carey was the greatest U.S. economist of the 19th century; I generally find that I can take any recent book on economics and judge its worth by looking in the index to see how many mentions of Henry Carey there are. If there are none, or perhaps just a short note, the book has always, ALWAYS, turned out to be some apologia for monetarism or some other dementia.

British economic thinking, Carey wrote,

is unsound and unnatural, and second, a theory invented for the purpose of accounting for the poverty and wretchedness which are its necessary results. The miseries of Ireland are charged to over-population, although millions of acres of the richest soils of the kingdom are waiting drainage to take their place among the most productive in the world, and although the Irish are compelled to waste more labour than would pay, many times over, for all the cloth and iron they consume. The wretchedness of Scotland is charged to over-population when a large portion of the land is so tied up by entails as to forbid improvement, and almost forbid cultivation. The difficulty of obtaining food in England is ascribed to over-population, when throughout the kingdom a large portion of the land is occupied as pleasure grounds, by men whose fortunes are due to the system which has ruined Ireland and India. Over-population is the ready excuse for all the evils of a vicious system, and so will it continue to be until that system shall see its end... (pp. 64-65)

In conflict with the British system, Carey was a proponent of what was  known until about the 1920s, as the American System of political economy. There is an excellent write up of it on Wikipedia.

I would like to see, for example, a calculation of the lost opportunity cost of having thousands of the most brilliant minds in physics, mathematics, and computer science, working the past three decades on quantifying and modeling the behavior of the financial markets, instead of working on problems like replacing carbon-based fuels, or redesigning urban environments to end suburbanization.

by NBBooks on Thu Dec 6th, 2007 at 04:13:36 PM EST
[ Parent ]
Well, it's not as if the earth can support an infinite number of people, so there's clearly some limit to population. Whether it's 2B, 4B, 6B, 10B or 20B is another matter.

I'm in the process of reading Malthus, but the introductory essay suggests that, as usual, what we're told he said is not what he actually said.

by Colman (colman at eurotrib.com) on Thu Dec 6th, 2007 at 05:45:35 PM EST
[ Parent ]
Human Carrying Capacity of Earth
http://www.ilea.org/leaf/richard2002.html
by NBBooks on Thu Dec 6th, 2007 at 07:23:03 PM EST
[ Parent ]
So, between 500M and 14B is the carrying capacity? Given that we're close to 7B and population as doubled in the last 30-40 years, I think we do have a population problem.

We have met the enemy, and he is us — Pogo
by Migeru (migeru at eurotrib dot com) on Sat Dec 8th, 2007 at 06:05:14 AM EST
[ Parent ]
Let's be real for a moment.  Anyone spending their life modelling financial markets is, by definition, NOT the most brilliant.
You'd have to be an urban animal, and a very insulated one at that, not to see costs associated with population growth without resorting to convoluted and probably meaningless mathematical perambulations.
by Andhakari on Fri Dec 7th, 2007 at 05:26:36 PM EST
[ Parent ]
Right, the most brilliant minds in mathematics, physics and computer science are in academia. The idea that the financial industry is employing the smartest people on the planet is a marketing line.

We have met the enemy, and he is us — Pogo
by Migeru (migeru at eurotrib dot com) on Sat Dec 8th, 2007 at 06:07:57 AM EST
[ Parent ]

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