Superlinear Cities--Geoffrey West

Why cities grow and companies die

Superlinear Cities--Geoffrey West

"It's hard to kill a city," West began, "but easy to kill a company." The mean life of companies is 10 years. Cities routinely survive even nuclear bombs. And "cities are the crucible of civilization." They are the major source of innovation and wealth creation. Currently they are growing exponentially. "Every week from now until 2050, one million new people are being added to our cities."

"We need," West said, "a grand unified theory of sustainability--- a coarse-grained quantitative, predictive theory of cities."

Such a theory already exists in biology, and you can build on that. Working with macroecologist James Brown and others, West explored the fact that living systems such as individual organisms show a shocking consistency of scalability. (The theory they elucidated has long been known in biology as Kleiber's Law.) Animals, for example, range in size over ten orders of magnitude from a shrew to a blue whale. If you plot their metabolic rate against their mass on a log-log graph, you get an absolutely straight line. From mouse to human to elephant, each increase in size requires a proportional increase in energy to maintain it.

But the proportion is not linear. Quadrupling in size does not require a quadrupling in energy use. Only a tripling in energy use is needed. It's sublinear; the ratio is 3/4 instead of 4/4. Humans enjoy an economy of scale over mice, as elephants do over us.

With each increase in animal size there is a slowing of the pace of life. A shrew's heart beats 1,000 times a minute, a human's 70 times, and an elephant heart beats only 28 times a minute. The lifespans are proportional; shrew life is intense but brief, elephant life long and contemplative. Each animal, independent of size, gets about a billion heartbeats per life. (West added that human bodies run on 100 watts---2,000 calories of food a day. But our civilizational energy use adds up 11,000 watts per person. We're like blue whales walking around.)

Does such scalability apply to cities? If you plot, say, the number of gas stations against the size of population of metropolitan areas on a log-log scale, it turns out you get another straight line. Ditto with the length of electrical lines, carbon footprint, etc. Per capita, big city dwellers use less energy than small town dwellers. As with animals, there is greater efficiency with size, this time at a 9/10 ratio. Energy use is sublinear.

But unlike animals, cities do not slow down as they get bigger. They speed up with size! The bigger the city, the faster people walk and the faster they innovate. All the productivity-related numbers increase with size---wages, patents, colleges, crimes, AIDS cases---and their ratio is superlinear. It's 1.15/1. With each increase in size, cities get a value-added of 15 percent. Agglomerating people, evidently, increases their efficiency and productivity.

Does that go on forever? Cities create problems as they grow, but they create solutions to those problems even faster, so their growth and potential lifespan is in theory unbounded.

(West pointed out that there is a bit of variability between cities worth noticing. On the plot of crimes/population, Tokyo has slightly fewer crimes for its size, and Osaka has slightly more. In the U.S., the most patents per capita come from Corvalis, Oregon, and the least from Abiline, Texas. Such variations tend to remain constant over decades, despite everyone's efforts to adjust them. "Exciting cities stay exciting, and boring cities stay boring.")

Are corporations more like animals or more like cities? They want to be like cities, with ever increasing productivity as they grow and potentially unbounded lifespans. Unfortunately, West et al.'s research on 22,000 companies shows that as they increase in size from 100 to 1,000,000 employees, their net income and assets (and 23 other metrics) per person increase only at a 4/5 ratio. Like animals and cities they do grow more efficient with size, but unlike cities, their innovation cannot keep pace as their systems gradually decay, requiring ever more costly repair until a fluctuation sinks them. Like animals, companies are sublinear and doomed to die.

What is the actual mechanism of difference? Research on that continues. "Cities tolerate crazy people," West observed, "Companies don't."
-- by Stewart Brand

This is not a conspiracy...apparently

Revealed – the capitalist network that runs the world
Updated 13:15 24 October 2011 by Andy Coghlan and Debora MacKenzie
Magazine issue 2835. Subscribe and save
For similar stories, visit the Finance and Economics Topic Guide

AS PROTESTS against financial power sweep the world this week, science may have confirmed the protesters' worst fears. An analysis of the relationships between 43,000 transnational corporations has identified a relatively small group of companies, mainly banks, with disproportionate power over the global economy.

The study's assumptions have attracted some criticism, but complex systems analysts contacted by New Scientist say it is a unique effort to untangle control in the global economy. Pushing the analysis further, they say, could help to identify ways of making global capitalism more stable.

The idea that a few bankers control a large chunk of the global economy might not seem like news to New York's Occupy Wall Street movement and protesters elsewhere (see photo). But the study, by a trio of complex systems theorists at the Swiss Federal Institute of Technology in Zurich, is the first to go beyond ideology to empirically identify such a network of power. It combines the mathematics long used to model natural systems with comprehensive corporate data to map ownership among the world's transnational corporations (TNCs).

"Reality is so complex, we must move away from dogma, whether it's conspiracy theories or free-market," says James Glattfelder. "Our analysis is reality-based."

Previous studies have found that a few TNCs own large chunks of the world's economy, but they included only a limited number of companies and omitted indirect ownerships, so could not say how this affected the global economy - whether it made it more or less stable, for instance.

The Zurich team can. From Orbis 2007, a database listing 37 million companies and investors worldwide, they pulled out all 43,060 TNCs and the share ownerships linking them. Then they constructed a model of which companies controlled others through shareholding networks, coupled with each company's operating revenues, to map the structure of economic power.

The work, to be published in PLoS One, revealed a core of 1318 companies with interlocking ownerships (see image). Each of the 1318 had ties to two or more other companies, and on average they were connected to 20. What's more, although they represented 20 per cent of global operating revenues, the 1318 appeared to collectively own through their shares the majority of the world's large blue chip and manufacturing firms - the "real" economy - representing a further 60 per cent of global revenues.

When the team further untangled the web of ownership, it found much of it tracked back to a "super-entity" of 147 even more tightly knit companies - all of their ownership was held by other members of the super-entity - that controlled 40 per cent of the total wealth in the network. "In effect, less than 1 per cent of the companies were able to control 40 per cent of the entire network," says Glattfelder. Most were financial institutions. The top 20 included Barclays Bank, JPMorgan Chase & Co, and The Goldman Sachs Group.

John Driffill of the University of London, a macroeconomics expert, says the value of the analysis is not just to see if a small number of people controls the global economy, but rather its insights into economic stability.

Concentration of power is not good or bad in itself, says the Zurich team, but the core's tight interconnections could be. As the world learned in 2008, such networks are unstable. "If one [company] suffers distress," says Glattfelder, "this propagates."

"It's disconcerting to see how connected things really are," agrees George Sugihara of the Scripps Institution of Oceanography in La Jolla, California, a complex systems expert who has advised Deutsche Bank.

Yaneer Bar-Yam, head of the New England Complex Systems Institute (NECSI), warns that the analysis assumes ownership equates to control, which is not always true. Most company shares are held by fund managers who may or may not control what the companies they part-own actually do. The impact of this on the system's behaviour, he says, requires more analysis.

Crucially, by identifying the architecture of global economic power, the analysis could help make it more stable. By finding the vulnerable aspects of the system, economists can suggest measures to prevent future collapses spreading through the entire economy. Glattfelder says we may need global anti-trust rules, which now exist only at national level, to limit over-connection among TNCs. Sugihara says the analysis suggests one possible solution: firms should be taxed for excess interconnectivity to discourage this risk.

One thing won't chime with some of the protesters' claims: the super-entity is unlikely to be the intentional result of a conspiracy to rule the world. "Such structures are common in nature," says Sugihara.

Newcomers to any network connect preferentially to highly connected members. TNCs buy shares in each other for business reasons, not for world domination. If connectedness clusters, so does wealth, says Dan Braha of NECSI: in similar models, money flows towards the most highly connected members. The Zurich study, says Sugihara, "is strong evidence that simple rules governing TNCs give rise spontaneously to highly connected groups". Or as Braha puts it: "The Occupy Wall Street claim that 1 per cent of people have most of the wealth reflects a logical phase of the self-organising economy."

So, the super-entity may not result from conspiracy. The real question, says the Zurich team, is whether it can exert concerted political power. Driffill feels 147 is too many to sustain collusion. Braha suspects they will compete in the market but act together on common interests. Resisting changes to the network structure may be one such common interest.

When this article was first posted, the comment in the final sentence of the paragraph beginning "Crucially, by identifying the architecture of global economic power…" was misattributed.
The top 50 of the 147 superconnected companies

1. Barclays plc
2. Capital Group Companies Inc
3. FMR Corporation
4. AXA
5. State Street Corporation
6. JP Morgan Chase & Co
7. Legal & General Group plc
8. Vanguard Group Inc
9. UBS AG
10. Merrill Lynch & Co Inc
11. Wellington Management Co LLP
12. Deutsche Bank AG
13. Franklin Resources Inc
14. Credit Suisse Group
15. Walton Enterprises LLC
16. Bank of New York Mellon Corp
17. Natixis
18. Goldman Sachs Group Inc
19. T Rowe Price Group Inc
20. Legg Mason Inc
21. Morgan Stanley
22. Mitsubishi UFJ Financial Group Inc
23. Northern Trust Corporation
24. Société Générale
25. Bank of America Corporation
26. Lloyds TSB Group plc
27. Invesco plc
28. Allianz SE 29. TIAA
30. Old Mutual Public Limited Company
31. Aviva plc
32. Schroders plc
33. Dodge & Cox
34. Lehman Brothers Holdings Inc*
35. Sun Life Financial Inc
36. Standard Life plc
37. CNCE
38. Nomura Holdings Inc
39. The Depository Trust Company
40. Massachusetts Mutual Life Insurance
41. ING Groep NV
42. Brandes Investment Partners LP
43. Unicredito Italiano SPA
44. Deposit Insurance Corporation of Japan
45. Vereniging Aegon
46. BNP Paribas
47. Affiliated Managers Group Inc
48. Resona Holdings Inc
49. Capital Group International Inc
50. China Petrochemical Group Company

* Lehman still existed in the 2007 dataset used

Graphic: The 1318 transnational corporations that form the core of the economy

Bunker Roy: Learning from a barefoot movement | Video on TED.com

Bunker Roy: Learning from a barefoot movement | Video on TED.com

ContentBlockHelper で要らない広告を消そう!

fukushima links sept 22 2011

radiation hotspot reaches as far as niigata (tokamachi). monitoring to increase.

http://www.bloomberg.com/news/2011-08-24/japan-triples-air-radiation-checks-for-hot-spots-.html

 

mentioned in gundersen/caldicott interview

http://www.fairewinds.com/content/arnold-gundersen-fukushima-update-aileen-mioko-smith-rising-radiation-levels-japan-and-gover

 

Adjectival Arcana - Wordnik List

Adjectival Arcana - Wordnik List

Jeffrey D. Sachs - The Economics of Happiness

NEW YORK – We live in a time of high anxiety. Despite the world’s unprecedented total wealth, there is vast insecurity, unrest, and dissatisfaction. In the United States, a large majority of Americans believe that the country is “on the wrong track.” Pessimism has soared. The same is true in many other places.

Against this backdrop, the time has come to reconsider the basic sources of happiness in our economic life. The relentless pursuit of higher income is leading to unprecedented inequality and anxiety, rather than to greater happiness and life satisfaction. Economic progress is important and can greatly improve the quality of life, but only if it is pursued in line with other goals.

In this respect, the Himalayan Kingdom of Bhutan has been leading the way. Forty years ago, Bhutan’s fourth king, young and newly installed, made a remarkable choice: Bhutan should pursue “gross national happiness” rather than gross national product. Since then, the country has been experimenting with an alternative, holistic approach to development that emphasizes not only economic growth, but also culture, mental health, compassion, and community.

Dozens of experts recently gathered in Bhutan’s capital, Thimphu, to take stock of the country’s record. I was co-host with Bhutan’s prime minister, Jigme Thinley, a leader in sustainable development and a great champion of the concept of “GNH.” We assembled in the wake of a declaration in July by the United Nations General Assembly calling on countries to examine how national policies can promote happiness in their societies.

All who gathered in Thimphu agreed on the importance of pursuing happiness rather than pursuing national income. The question we examined is how to achieve happiness in a world that is characterized by rapid urbanization, mass media, global capitalism, and environmental degradation. How can our economic life be re-ordered to recreate a sense of community, trust, and environmental sustainability?

Here are some of the initial conclusions. First, we should not denigrate the value of economic progress. When people are hungry, deprived of basic needs such as clean water, health care, and education, and without meaningful employment, they suffer. Economic development that alleviates poverty is a vital step in boosting happiness.

Second, relentless pursuit of GNP to the exclusion of other goals is also no path to happiness. In the US, GNP has risen sharply in the past 40 years, but happiness has not. Instead, single-minded pursuit of GNP has led to great inequalities of wealth and power, fueled the growth of a vast underclass, trapped millions of children in poverty, and caused serious environmental degradation.

Third, happiness is achieved through a balanced approach to life by both individuals and societies. As individuals, we are unhappy if we are denied our basic material needs, but we are also unhappy if the pursuit of higher incomes replaces our focus on family, friends, community, compassion, and maintaining internal balance. As a society, it is one thing to organize economic policies to keep living standards on the rise, but quite another to subordinate all of society’s values to the pursuit of profit.

Yet politics in the US has increasingly allowed corporate profits to dominate all other aspirations: fairness, justice, trust, physical and mental health, and environmental sustainability. Corporate campaign contributions increasingly undermine the democratic process, with the blessing of the US Supreme Court.

Fourth, global capitalism presents many direct threats to happiness. It is destroying the natural environment through climate change and other kinds of pollution, while a relentless stream of oil-industry propaganda keeps many people ignorant of this. It is weakening social trust and mental stability, with the prevalence of clinical depression apparently on the rise. The mass media have become outlets for corporate “messaging,” much of it overtly anti-scientific, and Americans suffer from an increasing range of consumer addictions.

Consider how the fast-food industry uses oils, fats, sugar, and other addictive ingredients to create unhealthy dependency on foods that contribute to obesity. One-third of all Americans are now obese. The rest of the world will eventually follow unless countries restrict dangerous corporate practices, including advertising unhealthy and addictive foods to young children.

The problem is not just foods. Mass advertising is contributing to many other consumer addictions that imply large public-health costs, including excessive TV watching, gambling, drug use, cigarette smoking, and alcoholism.

Fifth, to promote happiness, we must identify the many factors other than GNP that can raise or lower society’s well-being. Most countries invest to measure GNP, but spend little to identify the sources of poor health (like fast foods and excessive TV watching), declining social trust, and environmental degradation. Once we understand these factors, we can act.

The mad pursuit of corporate profits is threatening us all. To be sure, we should support economic growth and development, but only in a broader context: one that promotes environmental sustainability and the values of compassion and honesty that are required for social trust. The search for happiness should not be confined to the beautiful mountain kingdom of Bhutan.

Jeffrey D. Sachs is Professor of Economics and Director of the Earth Institute at Columbia University. He is also Special Adviser to United Nations Secretary-General on the Millennium Development Goals.

World's Nuclear Reactors

Some info about where the nuclear reactors are. Find one near you!

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also see

Pressurised water reactors (PWRs) This is the most common type worldwide. Enriched uranium oxide is formed into rods and water is used both as a coolant, flowing through the reactor core to transfer heat away, and as a moderator, slowing down neutrons released by fission so that they promote further nuclear reactions. The main cooling circuit transfers heat via a steam generator to a second circuit, which drives the electricity-generating turbine.

Boiling water reactors This is the next most common type, used in countries including the US, Sweden and Japan – the reactors at Fukushima Daiichi are ageing examples. The fuel is enriched uranium oxide, and water is used both as a coolant and as a moderator. However, these reactors differ from PWRs in that there is only one cooling loop, flowing between turbine and reactor.

Heavy water-moderated reactors These all use heavy water as a moderator. Most reactors of this type are known as pressurised heavy water reactors, favoured especially in Canada. PHWRs are similar to PWRs, but use raw uranium rather than enriched uranium oxide as fuel, and deploy heavy water – in which hydrogen is replaced by deuterium – as both moderator and coolant.

Gas-cooled reactors Developed in the UK, these reactors use graphite to moderate neutrons and carbon dioxide to cool the core. Older versions, known as Magnox reactors, use uranium metal as fuel, while newer ones use enriched uranium oxide.

Fast breeder reactors These reactors are cooled by liquid sodium, which is not an efficient moderator. In addition to driving fission reactions, 'fast' neutrons are readily captured by uranium-238, which is then converted to plutonium-239. These reactors therefore 'breed' plutonium, which can be used to make more fuel or nuclear weapons.

Light water-cooled graphite-moderated reactors Fuelled by low-enriched uranium oxide, these reactors use graphite as a moderator and water to cool the core. The most common variant of this type, known as RBMK, was responsible for the 1986 Chernobyl disaster. The design is considered inherently hazardous because graphite can react explosively with metal pipes, yet some reactors of the type continue to be operated in the former Soviet Bloc.

Map showing the population size living within 75 kilometres of each of the world's nuclear power plants. Population increases with circle size and with colour, from green (< 0.5 million) to red (> 20 million). You need to download the Google Earth plug-in to view this graphic. See 'How population sizes were estimated' for an explanation of how the analysis was carried out.