The trend toward ever greater urbanization continues unabated across the globe. According to the United Nations, by 2025 closes to 5 billion people will live in urban areas. Many cities, especially in the developing world, are set to explode in size. Over the next decade and a half, Lagos is expected to increase its population 50 percent, to nearly 16 million. Naturally, there is an active debate on whether restricting the growth of megacities is desirable and whether doing so can make residents of those cities and their countries better off.

This paper focuses on three interrelated questions on urbanization and the geography of development. First, although we herald cities with their industrial bases as "engines of growth," does industrialization in fact drive urbanization? While such relationships appear in the data, the process is not straightforward. Among developing countries, changes in income or industrialization correlate only weakly with changes in urbanization. This suggests that policy and institutional factors may also influence the urbanization process.

The great 21st-century migration into cities will present both a great challenge for humanity and a significant opportunity for global economic growth. This paper describes the diverse patterns that define this metropolitan migration. It then lays out a framework for understanding the costs and benefits of new arrivals through migration's externalities and the challenges and policy tradeoffs that confront city stakeholders.

This Fifth Edition of the Uganda Economic Update presents evidence that if the urbanization process is well managed, it has the potential to stimulate economic growth and to provide productive jobs for a greater proportion of Uganda’s young and rapidly expanding population. In many countries across the world, the growth of cities has stimulated the establishment and expansion of productive businesses by reducing the distance between suppliers and customers. The growth of cities has also facilitated provision of social services and infrastructure through economies of scale.

As part of a national experiment in 2008, Chengdu prefecture implemented ambitious property rights reforms, including complete registration of all land together with measures to ease transferability and eliminate migration restrictions. A triple difference approach using the Statistics Bureau’s regular household panel suggests that the reforms increased consumption and income, especially for less wealthy and less educated households, with estimated benefits well above the cost of implementation.

The Latin American and Caribbean Urban CSO Cluster, part of the Global Land Tools Network (GTLN), together with Habitat for Humanity’s Solid Ground Campaign and the Land Portal Foundation, launched an online debate on Urban Land Conflicts in Latin America and the Caribbean in January 2017. Responding to the common interest to make information easy to access and flow to boost collaboration among stakeholders as a critical basis to improve land governance.

Geoffrey Payne outlines five fundamental propositions that are key to his understanding of tenure issues and policy options.

These are:

1) That access to affordable land with adequate security of tenure and associated rights is a pre-condition for realising the goal of adequate housing and poverty reduction;

A defining feature of many of the world’s cities is an outward expansion far beyond formal administrative boundaries, largely propelled by the use of the automobile, poor urban and regional planning and land speculation. A large proportion of cities both from developed and developing countries have high consuming suburban expansion patterns which often extend to even further peripheries. Cities need to accommodate new and thriving urban functions such as transportation routes, etc. as they expand.

As we turn the page on MDGs to SDGs, the unprecedented proliferation of slums and informal settlements, and a chronic lack of adequate housing, continues to be amongst the major challenges of urbanization. Slums, informal settlements and inadequate housing remain the visible manifestations of poverty and inequality in cities. Inadequate housing complements the measurement of slums, particularly in the developed world, in order not to leave anyone behind.

Cities function in an efficient, equitable and sustainable manner only when private and public spaces work in a symbiotic relation to enhance each other. Public space generates equality, however in the past decades it has been drastically been reduced. Inadequate, poorly designed, or privatized public spaces generate exclusion and marginalization.

In September 2015, the United Nations Sustainable Development Summit adopted a new framework to guide development efforts between 2015 and 2030, entitled “Transforming our world: the 2030 Agenda for sustainable development”.1

Today, more than half the world’s population lives in cities. By 2030, it is projected that 6 in 10 people will be urban dwellers. By 2050, the figure will have risen to 6.5 billion people; representing two-thirds of all civilization. Taking into account the increasing rural to urban migration and the rapid growth of cities in the developing world, it is clear that cities face a myriad of problems that may hinder planned growth and development.