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.

Land policies are of fundamental importance to sustainable growth, good governance, and the well-being of, and the economic opportunities open to, both rural and urban dwellers - particularly the poor. To this end, research on land policy, and analysis of interventions related to the subject, have long been of interest to the Bank's Research Department, and other academic, and civil society institutions.

This study briefly summarizes the development experiences of special economic zones in China and Africa, the lessons that Africa can learn from China, and the preliminary results of the Chinese investments in special economic zones in Africa. The study makes recommendations on how to unleash the power of special economic zones and industrial zones in Africa through strategically leveraging the Chinese experiences.

Cities emerge from the spatial concentration of people and economic activities. But spatial concentration is not enough; the economic viability of cities depends on people, ideas, and goods to move rapidly across the urban area. This constant movement within dense cities creates wealth but also various degrees of unpleasantness and misery that economists call negative externalities, such as congestion, pollution, and environmental degradation.

Turkey’s demographic and economic transformation has been one of the world’s most dramatic, with urban growth and economic growth proceeding hand in hand. Distinguishing Turkey from many other developing countries has been the pace, scale, and geographical diversity of its spatial and economic transformation. Fast-growing secondary cities bring added challenges that define Turkey’s second-generation urban agenda.

Inexorable urbanization and formalization have been the expectations in development discourse. Indeed, measures of urbanization and formalization have been provided and used as indicators of development. But while urbanization has proceeded apace in developing countries, formalization has slowed significantly over the past quarter century. These disconnect raises questions for development analysis and development policy. Why did one expect urbanization and formalization to go together in the first place?

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.

Cities exist, grow, and prosper because they take advantage of scale economies and specialization wrought by agglomeration. But output growth inevitably stresses transport infrastructure because production requires space and mobility. To prevent congestion from crowding out agglomeration benefits and to expand the supply of urban land, cities must invest in transport infrastructure. Yet balancing the growing demand for infrastructure with its supply is often difficult. In particular, many cities lack the funding to maintain and expand streets and urban highways.

Croatia’s business environment has been identified as a priority area for reform by the Croatian Government. Under the government working group for business climate and private investments, the agency for investment and competitiveness has been designated to lead the dialogue with the private sector and coordinate the consultations with stakeholders, including international organizations on the design of a new wave of business environment reforms.

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.

This paper provides a brief overview of the intersection of state and customary laws governing land in peri-urban settlements around Honiara, focusing on their impact upon landowners, particularly women landowners. It suggests that the intersection of customary and state legal systems allows a small number of individuals, predominantly men, to solidify their control over customary land. This has occurred to the detriment of many landowners, who have often found themselves excluded from both decision-making processes and the distribution of financial benefits from the use of land.

The Kurdistan Region of Iraq (KRI) is a constitutionally recognized semiautonomous region in northern Iraq. Its government, the Kurdistan Regional Government (KRG), based in Erbil, has the right, under the Iraqi constitution of 2005, to exercise legislative, executive, and judicial powers according to the constitution, except in what is listed therein as exclusive powers of the federal authorities. The Iraqi constitution defines the Kurdistan Region as a federal entity of Iraq. KRG has a parliamentary democracy with a regional assembly that consists of 111 seats.