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It is obvious that holding city population constant, differences in cities across the world are enormous. Urban giants in poor countries are not large using measures such as land area, interior space or value of output. These differences are easily reconciled mathematically as population is the product of land area, structure space per unit land (i.e., heights), and population per unit interior space (i.e., crowding). The first two are far larger in the cities of developed countries while the latter is larger for the cities of developing countries. In order to study sources of diversity among cities with similar population, we construct a version of the standard urban model (SUM) that yields the prediction that the elasticity of city size with respect to income could be similar within both developing countries and developed countries. However, differences in income and urban technology can explain the physical differences between the cities of developed countries and developing countries. Second, using a variety of newly merged data sets, the predictions of the SUM for similarities and differences of cities in developed and developing countries are tested. The findings suggest that population is a sufficient statistic to characterize city differences among cities within the same country, not across countries.
The answers to the questions of why and how people live where they live as well as how they maintain and integrate with one another are fundamental human settlement issues rooted in history and culture. Human settlements are historically linked to resource availability, fortification, and the mythos of civilizations. Cities play a central role in redefining the interface between human beings and nature. They have revolutionized the human experience by taming natural surroundings and building environments that are human-centric—often narrowing human life outside the experience of wilderness or the untamed. This book is divided into three parts, it examines urban development trends, explores perspectives in energy efficiency and agriculture security, and considers policy development and future scenarios in human-nature relations. It is a compendium of multidisciplinary work that challenges the directions of modernity and offers reference to alternatives. Authors come from a diverse background and international context to address common overarching theories facing current geography-specific problems. An interconnected overtone of the book attempts to link accelerated urbanization and settlement location to how societies are maintained and integrated. Human settlements are shaped by human ecology and the relationship between humans and their interaction with their environment. Two sectors central to human survival are specifically explored: energy and agriculture. Cutting-edge, smart development looks at the latest findings that reflect the on-going debate facing these sectors. A human settlement metric is envisioned in terms of the past, present, and future. This book is a unique attempt to combine a rethinking about human settlements for scientists, policy-makers, public officials, and people committed to improving urban life, society-wide. Possible agents to resolving human settlement problems include international cooperation and various mechanisms that interlace the international community. Methodological and applied aspects of sustainable management focus on topics such as adaptive knowledge sharing, renewable energy, climate change, agricultural planning, and policy development. An emphasis on scientific and technological advancement, from a bottom-up mapping of society, elucidates a better understanding of the role of knowledgeable societies in which need is considered alongside how such need can be sustained—advancing towards a more promising future.
Digital connectivity, including through the modern cellular network technologies, is expected to play a key role for the Future of Work in sub-Saharan Africa (SSA). We estimate the cost of introducing a full-scale 4G network by 2025 in SSA and an operable 5G network by 2040. We adapt the costing model of Lombardo (2019) by accounting for the significant demographic transformation and rapid urbanization in SSA. We use the WorldPop and GADM databases and the UN’s medium-variant population projections to project the population densities at the highest level of administrative division for each SSA country in 2025 and 2040. For full 4G connectivity, the required capital and operational costs stands approximately at US$14 billion by 2025 and for 5G connectivity, costs amount to US$57 billion in 2040, conditional on having the 4G in place by 2025. These costs roughly translate to 8.4 percent of annual subscriber income, on a median basis, by 2025 for 4G and 4.9 percent of subscriber income by 2040 for 5G. Having the infrastructure in place is not sufficient to bridge the mobile Digital Divide. In addition, policies are needed to address affordability and knowledge gaps.
This open access book investigates the link between income inequality and socio-economic residential segregation in 24 large urban regions in Africa, Asia, Australia, Europe, North America, and South America. It offers a unique global overview of segregation trends based on case studies by local author teams. The book shows important global trends in segregation, and proposes a Global Segregation Thesis. Rising inequalities lead to rising levels of socio-economic segregation almost everywhere in the world. Levels of inequality and segregation are higher in cities in lower income countries, but the growth in inequality and segregation is faster in cities in high-income countries. This is causing convergence of segregation trends. Professionalisation of the workforce is leading to changing residential patterns. High-income workers are moving to city centres or to attractive coastal areas and gated communities, while poverty is increasingly suburbanising. As a result, the urban geography of inequality changes faster and is more pronounced than changes in segregation levels. Rising levels of inequality and segregation pose huge challenges for the future social sustainability of cities, as cities are no longer places of opportunities for all.
220 million Americans crowd together in the 3% of the country that is urban. 35 million people live in the vast metropolis of Tokyo, the most productive urban area in the world. The central city of Mumbai alone has 12 million people, and Shanghai almost as many. We choose to live cheek by jowl, in a planet with vast amounts of space. Yet despite all of the land available to us, we choose to live in proximity to cities. Using economics to understand this phenomenon, the urban economist uses the tools of economic theory and empirical data to explain why cities exist and to analyze urban issues such as housing, education, crime, poverty and social interaction. Drawing on the success of his Lindahl lectures, Edward Glaeser provides a rigorous account of his research and unique thinking on cities. Using a series of simple models and economic theory, Glaeser illustrates the primary features of urban economics including the concepts of spatial equilibrium and agglomeration economies. Written for a mathematically inclined audience with an interest in urban economics and cities, the book is written to be accessible to theorists and non-theorists alike and should provide a basis for further empirical work.
We live in the ‘urban century’. Cities all over the world – in both developing and developed countries – display complex evolutionary patterns. Urban Empires charts the backgrounds, mechanisms, drivers, and consequences of these radical changes in our contemporary systems from a global perspective and analyses the dominant position of modern cities in the ‘New Urban World’. This volume views the drastic change cities have undergone internationally through a broad perspective and considers their emerging roles in our global network society. Chapters from renowned scholars provide advanced analytical contributions, scaling applied and theoretical perspectives on the competitive profile of urban agglomerations in a globalizing world. Together, the volume traces and investigates the economic and political drivers of network cities in a global context and explores the challenges over governance that are presented by mega-cities. It also identifies and maps out the new geography of the emergent ‘urban century’. With contributions from well-known and influential scholars from around the world, Urban Empires serves as a touchstone for students and researchers keen to explore the scientific and policy needs of cities as they become our age’s global power centers.
This collection offers a timely reassessment of viable ways of addressing poverty across the globe today. The profile of global poverty has changed dramatically over the past decade, and around three-quarters of the poor now live in middle income countries, making inequality a major issue. This requires us to fundamentally rethink anti-poverty strategies and policies, as many aspects of the established framework for poverty reduction are no longer effective. Featuring contributions from Latin America, Africa and Asia, this much-needed collection answers some of the key questions arising as development policy confronts the challenges of poverty and inequality on the global, national and local scale in both urban and rural contexts. Providing poverty researchers and practitioners with valuable new tools to address new forms of poverty in the right way, Poverty and Inequality in Middle Income Countries shows how a radical switch from aid to redistribution-based social policies is needed to combat new forms of global poverty.
In the United States, some populations suffer from far greater disparities in health than others. Those disparities are caused not only by fundamental differences in health status across segments of the population, but also because of inequities in factors that impact health status, so-called determinants of health. Only part of an individual's health status depends on his or her behavior and choice; community-wide problems like poverty, unemployment, poor education, inadequate housing, poor public transportation, interpersonal violence, and decaying neighborhoods also contribute to health inequities, as well as the historic and ongoing interplay of structures, policies, and norms that shape lives. When these factors are not optimal in a community, it does not mean they are intractable: such inequities can be mitigated by social policies that can shape health in powerful ways. Communities in Action: Pathways to Health Equity seeks to delineate the causes of and the solutions to health inequities in the United States. This report focuses on what communities can do to promote health equity, what actions are needed by the many and varied stakeholders that are part of communities or support them, as well as the root causes and structural barriers that need to be overcome.
Over the past two decades, the percentage of the world’s population living on less than a dollar a day has been cut in half. How much of that improvement is because of—or in spite of—globalization? While anti-globalization activists mount loud critiques and the media report breathlessly on globalization’s perils and promises, economists have largely remained silent, in part because of an entrenched institutional divide between those who study poverty and those who study trade and finance. Globalization and Poverty bridges that gap, bringing together experts on both international trade and poverty to provide a detailed view of the effects of globalization on the poor in developing nations, answering such questions as: Do lower import tariffs improve the lives of the poor? Has increased financial integration led to more or less poverty? How have the poor fared during various currency crises? Does food aid hurt or help the poor? Poverty, the contributors show here, has been used as a popular and convenient catchphrase by parties on both sides of the globalization debate to further their respective arguments. Globalization and Poverty provides the more nuanced understanding necessary to move that debate beyond the slogans.
"This work is a product of the staff of The World Bank with external contributions"--T.p. verso.