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How to manage urban expansion in mega-metropolitan areas?

Philip E. Karp's picture

As the world becomes increasingly urbanized, the number of megacities is growing rapidly.

Today there are 37 cities worldwide with populations of greater than 10 million, and 84 with populations greater than five million. More than three quarters of these cities are in developing countries. Together with their surrounding metropolitan areas, these cities produce a sizable portion of the world’s wealth and attract a large share of global talent.

These megacities face a series of common challenges associated with managing urban expansion, density, and livability—in a manner that takes advantage of the benefits of productive agglomerations, while mitigating the disadvantages of such high degrees of congestion and urban density.

Moreover, like other metropolitan areas, megacities face challenges of effectively coordinated planning, infrastructure development, and service delivery across multiple jurisdictions. Indeed, the New Urban Agenda issued at the Habitat III conference in 2016 identified metropolitan planning and management as one of the most critical needs to ensure sustainable urbanization.

Transforming urban waterfronts

Fen Wei's picture
James Cooper, Sunday Bondo and Patrick Lappaya work together closely to take a sample
swab to help determine the death of a women at C.H. Rennie Hospital in Kakata, Margibi
County in Liberia on March 10, 2016. Photo © Dominic Chavez/World Bank

In my blog in February I described the rationale behind the creation of the International Working Group on Financing Preparedness (“IWG”), which is focused on how to ensure sustainable funding for the first line of defence against pandemics – prevention, identification and containment of infectious disease outbreaks at a national level. The IWG had its second face-to –face meeting earlier this month in London at Wellcome Trust. The goal of this meeting was to review the analytical work that had taken place over the last couple of months and debate a draft set of recommendations. Since that meeting we have been refining these recommendations with a view to presenting them in draft form to the UN Secretary General’s Global Health Crisis taskforce on May 1 and launching the full report at the World Health Assembly on May 25.

Why I Love Technology

Jeggan Rajendram's picture

eBay, an online marketplace, reduces the effect of distance on international trade by 65%, mainly through a reduction in information frictions that creates trust between market participants. As online markets help overcome market and government failures, the reduction in trade costs is larger where it is most needed: in remote countries with weak institutions that export information-intensive goods.

In the 1990s, many commentators believed that with advances in transportation and communication technologies, geographic distance between countries would soon no longer encumber international transactions. Frances Cairncross (1997) famously predicted the “death of distance”. But despite some anecdotal evidence in support of this prediction, a large number of academic papers has established that distance has been thriving, rather than dying.

Connecting Sri Lankans to Prosperity

Eliana Cardoso's picture

Factory in Mexico. Source: Alan Grinberg -- world is increasingly interconnected, and nowhere is a better example of that than the border between Mexico and the US. Lined with factories, the division between the two countries is blurred by a comprehensive trade agreement, international production chains, and other economic and social ties. On the Mexican side of the border, close to 3,000 factories import components and raw materials, workers assemble goods, and most of the finished products are destined for the US.

Is this good for Mexican workers? These export-oriented industries provide nearly two million jobs, a boon for development. But it turns out that these jobs can disappear quickly: the economic health of the US has a large impact on Mexican workers’ employment status, with downturns and booms amplified through a number of channels. Although the US economy is rarely volatile, this is an important finding that could have policy implications around the world. Mexico is similar to the increasing number of countries that have encouraged export-oriented industry as a strategy for development and enacted trade reforms integrating the local economy with the world market.