Showing posts with label global urbanisation. Show all posts
Showing posts with label global urbanisation. Show all posts

Monday, August 15, 2011

Urban Violence Abroad: An Arab Spring and a British Autumn?

Does urbanisation lead to global behaviours?
Treating urbanisation as some sort of homogeneous movement, a driver of an increasingly interdependent world of shared values, behaviour, and prosperity is to oversimplify.  There may be some common drivers, but urbanisation in the 21st century is likely to be quite different from urbanisation in the 20th century.  Suggesting a universal approaches to governing, managing and planning cities is providing answers without knowing the questions. 
The role of the city has to be considered in recent outbreaks of localised or national violence.  In this post I raise the issue of urban violence with reference to urbanisation in North Africa and the Middle East, and explore possible parallels with recent riots in Britain.
Violence and language
Language, like planning, can be employed to make order out of chaos.  The American invasion of Iraq in 2005 was widely seen as the beginning of an Arab Spring, a label suggesting that people in other Arab nations might rise up in some  universal quest for democratic deliverance from oppressive regimes following the expulsion of Saddam Hussein. 
In keeping with this representation, today's images of protest and violence in the streets of Egypt, Libya, and Syria are presented as signs of culture change leading inevitably to western-style democracy.  But it would be premature to assume that out of the current movements will come the end of autocracy, a displacement of authoritarian regimes with multi-party democracy, or a cessation of sectarian conflict. 
Despite deep cultural difference that mean western expectations for Arab outcomes are likely to be flawed, there are parallels between what is happening in North Africa and urban violence in Britain.  Only there, the language is quite different.  The politicians and press are not lauding the people on the streets of London or Birmingham, and the reporting is a lot less optimistic. 
Cities and revolution
Have you noticed how the images of North African protests against autocratic governments are male-dominated, and urban? This is hardly new: think Paris at the end of the 18th century or in 1848.
But today’s turmoil does raise a couple of thoughts.  First, let's remember there is an enduring tradition of inter-tribal struggle for power and long-standing feuds among sects in the Middle East.  Internecine violence predates the colonial borders and post-colonial regimes that seem to be unravelling now.  Despite the increased trappings of modernisation, little may have changed by way of physical struggles for power in a traditionally male domain.
But what is interesting is the way uprisings are playing out today as predominantly urban movements.  Urbanisation appears to play an important part in focusing discontent and making disenfranchisement visible.  Growing cities provide gathering places for growing protest.  They are the terrain for harassment, the platform for violence, and the stage for claim and counterclaim.  The march from city to city, whether in defiance or defence, tracks the progress of civil unrest, suppression, and revolution. 

Social media - uniting or dividing?
Much has been made of the role of social media in mobilising civilians to a common cause, but it can only really give form to popular protest in an urban setting.  Urbanisation may encourage unity among diverse groups opposing a common tyranny. But such unity is likely be transitory, lasting only to the fall of the first tyrant.

Within fast growing cities of the Arab world sectarian divisions still run deep and social media may simply reinforce them, calling brothers to arms to settle old enmities once new protests have finished.
The demographics of growing cities
It might pay to look more closely at urbanisation to better understand the character of today's protests .  Look at the underlying demographics of countries at the heart of unrest and regime change in North Africa, and compare them with, say, the US and the UK.  They:
(1)    Are urbanising rapidly – Syria and Iraq stand out;
(2)    Have large shares of their populations aged under 30 years – 67% in Iraq and 65% in Syria;
(3)    Have higher unemployment – quite possibly much higher given the difficulty of measuring this figure in a consistent way.  Libya appears to lead the way, although some of the unemployment figures are little better than informed guesses.

SyriaIraqLibyaTunisiaEgyptUSUK
% Urban55.7%66.2%77.9%67.3%43.4%82.3%79.6%
Urban Growth101.5%65.2%54.3%46.6%45.9%36.2%10.2%
% Aged<3065.2%66.7%60.2%49.2%59.9%39.3%36.2%
% Aged <30 Male51.0%50.7%51.1%50.1%50.9%49.8%50.1%
Unemployment12.6%15.3%30.0%13.0%11.9%9.1%7.7%
              Sources: US Census Bureau; TradingEconomics.com; CIA World Fact Book, national statistical offices

How far, it might be asked, is the Arab spring founded on the frustrations of Arab youth?  And can we really expect revolution in the streets to resolve issues of deprivation, dispossession, and boredom, without the revolutionaries first finding fulfilment and making real material (or spiritual) progress even if the short term ends of overthrowing incumbent rulers are met?
The road to this Damascus is likely to be long and divided
The mix of rapid urbanisation, youthful populations, and high unemployment is a volatile one.  Add strong religious, cultural or ethnic divisions and inequality within increasingly urbanised societies and the prospect is for prolonged unrest and sporadic violence. 
While globalising communications and the accessibility of social media may feed visions of liberal democratic regimes and the illusion of increasingly connected societies, the result in North Africa and the Middle East may be quite different from any western ideal.  Revolution here may lead to ways of sharing and exercising power other than those associated with orderly, liberal democracies; or it may simply reinforce the fractured nature of these societies.
The road ahead is not clear, nor it is likely to be smooth.
Lessons for the west?
Are the industrialised – and post-industrial – cities of the west insulated from the frustrations of youth?  Recent British experience suggests not.  The numbers are smaller, and the middle aged and middle class more likely to resist, but urban conditions of alienation and relative deprivation are significant, particularly among young people in large urban areas. 
Deprivation is most conspicuous in cities, especially when economic growth is less assured and the fruits less dispersed.  Almost inevitably, the costs of stagnation are distributed disproportionately along ethnic and generational lines when the economy slows and business and governments consolidate. 
Who’s rioting in Britain?
In February 2011 it was reported that youth (16-24 years) unemployment in Britain hit a record 20.5%, compared with a general rate of 7.9%.  The majority of young unemployed are concentrated in urban areas: according to a 2009 Centre for Cities publication, the 63 largest British cities and towns contain 59% the country’s youth population, but 64% of the young who are on benefits.  Not only that, but a 2010 publication by the Institute for Public Policy Research suggests that half of Britain’s unemployed youth are black.
The television images of British urban riots show a high proportion of youth, and a disproportionate representation of black youth.   While the riots were characterised by the level of damage to property and theft, attributing them simply to criminality (or moral weakness ) misses the role of divisions within large cities.  When distinctive groups of people within cities sit outside prevailing economic and political structures, their collective lack of respect for property - or lives - should not be so surprising.

There are obvious differences between the urban domain in Britain and that of North Africa, though.  For a start, dispossessed youth are a minority in Britain, where a strong middle-aged middle class will rally to support government efforts --- or even to advance their own -- to quell disorder.
So, in urban settings that are figuratively a world apart a common contributor to street violence is an alienated youth.  But perhaps that’s as far as commonality goes.  In the Arab world, youth is a near or even absolute majority; in the western world it is minority.  In the Arab world it appears to be seeking a share of the power in rapidly urbanising communities; in the western world it is seeking its share of the good life in a long-urbanised society. 

Friday, August 5, 2011

Are 20th Century Models Relevant to 21st Century Urbanisation?

Urbanisation and material progress

Analysis of the state of the world’s cities 2010/2011 by UN-Habitat focused on the narrowing urban divide, with 227 million people moving out of slum conditions over the preceding decade.  While acknowledging uncertainty over cause and effect, the report notes that:
urbanization ... is associated in some places with numerous, positive outcomes such as technological innovation, forms of creativity, economic progress, higher standards of living, enhanced democratic accountability and women’s empowerment. ... the report calls for policy-makers and planners to understand that urbanization can be a positive force for economic development, leading to desirable social and political outcomes.

The North Atlantic solution
The report acknowledges the diversity of urbanisation[1], making its authors' somewhat singular approach to managing it (more density) incongruous.  Their prescription is based on resisting urban sprawl, reflecting the experience of North America.  They also suggest that sprawl is a sign of “divided cities”, translating into

an increase in the cost of transport, public infrastructure and of residential and commercial development. Moreover, sprawling metropolitan areas require more energy, metal, concrete and asphalt than do compact cities because homes, offices and utilities are set farther apart.

The report denounces sprawl in suburban zones of high and middle income groups and in extensive slums on the city edge.  On the latter, they invoke issues of governance, saying it occurs because
authorities pay little attention to slums, land, services and transport. Authorities lack the ability to predict urban growth and, as a result, fail to provide land for the urbanizing poor.

Can one size fit all?
It is difficult to accept prescription predisposed to a particular view. Urbanisation is not a single condition. Differences in the stage of urbanisation, vastly different physical, cultural and economic settings of “urban” settlement, and different institutional arrangements belie the idea of a universal response or that any particular form is best for all cities. 

Apart from anything else, “western” cities [2] don’t really feature in 21st century urbanism.  Consider the figures.  In 1950 western cities accounted for 43% of the world’s urban population.  This was down to 23% in 1990 and 18% in 2010. UN projections have the figure down to 15% in 2030, accounting for between just 3% and 4% of all urban growth between now and then.
What Size City?
This post looks at some more numbers that help illustrate the diversity of urbanisation – the size of urban settlements. 

According to UN figures,  8% of the world’s population lives in 53 cities housing over 5 million people; 12% in 388 cities of between 1 and 5 million; and 31% in cities of under 1 million. Any prescriptions for urban governance and urban form need to reflect quite extreme divergence between the few megacities and the many smaller settlements where the majority of urbanites live.
The Urban Growth Trajectory
Urbanisation experiences vary, also.  The different national experiences of the past 60 years can be illustrated using ten quite different countries (Chart 1).  By 2010, Brazil, US, UK, Mexico, and Iran were all heavily urbanised.  But the level of urbanisation changed little for the US and the UK over thelate 20th century, while it grew rapidly in the others.

In yet another trajectory, erstwhile rapid urbanisation in Russia stalled after the mid 1980s. 
Chart 1: Urbanisation Trends, Selected Nations, 1950-2010
Urbanisation is accelerating in China, but has flattened off in Indonesia.  It has been increasing steadily in Nigeria and slowly but still steadily in India.

Most people moving into smaller cities
Chart 2 shows shares of growth by city size groups over the last twenty years. (Russia is omitted because urbanisation actually declined by 5.5%.) 

Cities of under 1 million residents dominate gains, strongly favouring developing countries.  They accounted for 90% of urban growth in Indonesia, 71% in Nigeria and 66% in Iran. 

US experienced growth more or less across all size categories, although Chicago went from the 7m-8m to the 8m plus category, reducing down the former.

Chart 2: Where Populations Grew - Cities by Size Category, 1990-2010
Brazil, China, and Indonesia saw significant growth across the most size groups.  There appears to be a contrast within these countries between the centralising influence of few large cities and dispersed urbanisation in many much smaller settlements.

(The picture for the UK reflects a gain of around 1 million people in London -- to 8.6m -- shifting it between categories.  Smaller cities actually accounted for 82% of the net UK gain in urban population, suggesting a duality between the growth of the capital and decentralisation through growth in smaller settlement). 

So where are the big cities?
The US has five urban agglomerations with a population of more than 5m, centred on New York, Los Angeles, Chicago, Philadelphia and Detroit (Chart 3).  Compare this with China, with twelve cities of over 5m, and five cities of more than 8 million people (Shanghai, Beijing, Chongqing, Shenzhen, and Guangzhou); or India, with eight over 5m and three over 8m (Mumbai, Kolkata, and Chennai).

At the same time, China has 90 cities of between 750,000 and 2m, India 44 and the US 66.  Mexico has 15, Russia 14 and Brazil 13. 

Chart 3: Number of Cities by Size Category, Ten Nations 2010
Primacy – a mixed picture
Single centres that dominate national populations are termed “primate”.  Their rise and fall may be symptomatic of national economic fortunes.  Excessive primacy may increase economic volatility because the contrast between a rich centre and poor periphery is politically destabilising. One centre dominating financial, human, and intellectual resources may also increase national vulnerability to structural decline.

The picture is mixed across our sample (Chart 4).  Mexico City and London stand out.  High levels of primacy are also evident in Iran and Indonesia, but have been easing, contrasting with Nigeria where it is increasing.  It is least pronounced in the countries with the largest urban populations – China and India -- suggesting a strong population pull from a number of state or provincial capitals, as well as a host of much smaller cities.

Chart 4: Population Share of Largest City, Ten Nations, 1990 and 2010
So what does all this mean?
The data confirms huge diversity in the sizes of cities people live in across and within nations.  It generates more questions than answers, though, the main one being whether it is relevant simply to transfer urban governance, management, or planning models from one place to another.  Apart from contrasts within and between nations, it is clear that the west is no longer the focus of urbanisation and is unlikely to hold many of the answers to today’s urban growth challenges.
The evidence also indicates a tendency for urbanisation to take place in small, dispersed settlements rather than mega-cities.  More modest scale makes different demands on infrastructure and institutions.  It may also help manage urbanisation and ensure that benefits can be better accessed by larger numbers of people.  Small cities, sub-centres in large cities, and districts of modest scale may be better suited to adaptable and innovative planning and management than large scale, extensive cities with their more centralised, remote, and inevitably bureaucratic political and administrative systems. 

Very large agglomerations do exist, even if they are not as dominant in the wider urban picture as their size and profiles might suggest.  The question they raise is whether they should continue to dominate national and international agenda for urban growth and management.  Dispersed urbanisation may better reflect the resources and capacities needed to support an exploding urban population in the 21st century.


[1]  The lowest level of urbanisation incorporated by the UN depends on the conventions of individual nations but may refer to settlements with as few as 2,000 people.
[2] Treated here as North America, Northern Western and Southern Europe, and Australasia

Wednesday, July 27, 2011

Are all Cities Born the Same?

Urbanisation and development: a history in under 200 words
Way back in my youth we were taught that cities grew because of specialisation.  As societies became more specialised they produced sufficient food to support bigger populations.  This, the manufacture of basic tools and implements, and exchange of surpluses led to concentrated settlement.  This could be where raw materials were present, transport routes converged, or defences could be mounted against marauding neighbours.  Craftsmen multiplied, guilds formed, markets emerged, armies assembled, merchants traded, knowledge deepened.   So towns and cities became centres of production, repositories of knowledge, places where wealth – and poverty – accumulated, where capital and labour met. 

This sequence was highlighted in 19th Century Europe and North America.  Rural productivity gains released whole communities from the land, their labour supporting the emergence of machine-based factories in the cities. People housed in rapidly growing urban areas could be employed to generate far more goods – and wealth – than any subsistence, feudal, or village-based society could. 
This pattern was repeated more or less in Asia’s development and continues in developing nations in different ways today. 

Can cities grow themselves?
Of course, there are variations.  Certain cities may be favoured, for example, by technical progress. A low cost workforce, evolution of skills and technology can compensate for less than ideal location. And in today’s age of middle class consumerism sunshine and sea can favour localities with otherwise few advantages. 

So the current policy preoccupation with how cities might grow themselves is interesting.  This might lead to plans to increase densities in the hope of lifting productivity; or pushing the quirky and creative in an attempt to attract knowledgeable people and knowledge-industries; or promoting Big Projects like performing arts or sports stadiums and convention centres.  
Promoting cities this way, the theory goes, will make countries succeed through a process of civic bootstrapping –creating urban advantage out of nothing, or at least very little. 

How realistic is this, and how widely applicable?

The Triumph of Cities?
Academic Edward Glaeser’s recent book, The Triumph of Cities, brings together a lot of these threads.  It goes further, turning my old professors’ theories upside down.  According to Glaeser the city drives development, it’s a human "invention" that itself facilitates advancement.  The city is a generator of ideas and not just the repository, the source of development rather than the consequence, and, latterly, the saviour of the environment, all driven by the way it concentrates human capital. 

From his experience of cities Glaeser offers a prognosis.  If we accept the city as a triumph, we can live with the negatives, including urban impoverishment.  Even where people congregate in poverty they will find a way to progress.  But in spatial terms that progress, he thinks, should be upward rather than outward.  Higher density cities mean even more interaction of people, more productivity and the bonus of a smaller carbon footprint.

While these ideas have popular appeal, I’m not convinced of their universality.  I don’t doubt an association between urbanisation and progress.  Much of Glaeser’s career has been based on demonstrating it.  But I don’t believe even now we fully understand cause and effect – certainly not enough to provide a recipe for prosperity based on one view of how cities should evolve.  Nor do we have the crystal ball to understand the future technologies that will shape – and reshape – cities.

My preoccupation has been with cities in a very small corner of the world and their particular shape and needs.  Based on that experience, though, I’m not sure that Glaeser’s bigger corner justifies the sweeping generalisations he makes.
The elephant in the urban room
I have examined UN Department of Economic and Social Affairs World Urbanization 2009 Revision data for 1960 to 2010 to consider the dynamics of global urbanisation.  Urbanisation is taking place today at a rate without precedent.  Just how far, then, does dwelling on past experience take us?

The world’s population grew by around 3.9 billion over the last 50 years.  64% of that growth (close to 2.5 billion people) was in urban areas, a spectacular 250% increase in urban dwellers.  Of these 57% were in Asia and 14% each in Africa and Latin America and the Caribbean (see diagram).  
Europe and North America, where much of our thinking about cities originates, together accounted for just 14% of urban growth.  How far can prescriptions for the rest of the world be based on this heritage now that the world’s biggest urban growth challenges reside elsewhere?

Where urban growth has taken place, 1950-2010 (Millions of Residents)
 Source: UN Department of Economic and Social Affairs

Global urbanisation trends
I plotted the growth increments for each world region divided among cities with more or less than 1 million residents (as well as rural areas).  There are significant differences, even at this high level.

Look at the three developing continents.  In Africa, rural growth remained strong.  Only since 1980 has urban growth made significant inroads, mainly in smaller cities.  In contrast Latin America’s rural population actually declined over the last two decades, and large cities kept pace with smaller ones.  In Asia, urbanisation has outstripped rural growth since 1990.  Here, smaller settlements dominated.  
50 Years of Urban Growth: Asia, Latin America, and Africa


Note: Vertical axes have different scales
                                Source: UN DESA

 Even on the more developed continents patterns diverge.  Rural depopulation is stronger in Europe than North America.  In Europe smaller settlements have taken over growth from larger cities.  In the United States large cities remain dominant. 

Note: Vertical axes have different scales
Source: UN DESA

 (Oceania is complicated because of small populations, only six large cities, and because Brisbane, Perth, Auckland, and Adelaide all hit millionaire status during the 1980s and 90s).
So who’s right?
There is no obvious pattern here.  Maybe we cannot generalise about urbanisation.  We are seeing quite different forms and stages of urbanisation in quite different settings.  And among cities even within the same region there are bound to be huge differences in urban process, progress, quality, and character. 

How well does Glaeser’s book reflect this diversity, and how widely applicable might his prescriptions be?  The Triumph of Cities refers to around 75 cities.[1]  Collectively they account for around 11% of the world’s urban population. 
Nearly a third (24) have populations over 5 million. This compares with just 9% of the world’s 590 cities of 750,000 people or more.  There are 19 cities in the world housing more than 10 million people: as far as I can see Glaeser mentions nine of these, focusing on places like New York, Boston, Chicago, Detroit, San Francisco, London, and Paris.   

And, half of Glaeser’s city references are from North America (36 from the United States) and close to a quarter from Europe.  Only three Chinese cities appear to merit a mention, and four from India.  Yet according to the UN data, of the 590 cities with over 750,000 residents 131 are in China and 59 in India, compared with 56 in North America.
While the Triumph of the City is informative and occupies an interesting space between academia and populism, it falls short of its ambitions.  It draws sweeping conclusions from a partial and inevitably selective sample. 

Perhaps ambitions to produce a prescription for successful cities will never be realised.  I suspect my teachers’ theories also fall short in today’s urbanising world.  But I cannot accept that the city is a triumph: it just is, and it is in many forms, each with its own challenges and opportunities.  Even if we accepted Glaeser’s prescription for better cities, we would have to ask for whose cities, and where? 



[1]   Based on a count of cities cited in the index