Person:
Roberts, Mark
Urban, Resilience and Land Global Practice, The World Bank
Author Name Variants
Fields of Specialization
Urban economics,
Urban development,
Spatial economics,
Regional development
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Urban, Resilience and Land Global Practice, The World Bank
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Last updated
January 31, 2023
Biography
Mark Roberts is a senior urban economist with the Urban, Resilience and Land Global Practice of the World Bank, where his work currently focuses on the East Asia and Pacific region. Prior to joining the World Bank, Mark was a lecturer in spatial economics at the University of Cambridge and a fellow in economics at Murray Edwards College, a member college of the University of Cambridge. Mark has published widely in leading peer-reviewed journals on the topic of spatial economic development and is a former coeditor of the journal Spatial Economic Analysis. He is coauthor of the World Bank’s South Asia Region Flagship Report, Leveraging Urbanization in South Asia, and its Latin America and Caribbean Flagship Report, Raising the Bar for Productive Cities in Latin America and the Caribbean. He has also worked on both the Europe and Central Asia and Sub-Saharan Africa regions, and acts as an advisor to Bank teams working on the analysis of processes of urban and spatial development. A native of the United Kingdom, Mark holds a PhD in land economy and an MA in economics from the University of Cambridge as well as an MS in economics from Warwick University.
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Publication
Is Urbanization in Sub-Saharan Africa Different?
(World Bank, Washington, DC, 2013-06) Henderson, J. Vernon ; Roberts, Mark ; Storeygard, AdamIn the past dozen years, a literature has developed arguing that urbanization has unfolded differently in post-independence Sub-Saharan Africa than in the rest of the developing world, with implications for African economic growth overall. While African countries are more urbanized than other countries at comparable levels of income, it is well-recognized that total and sector gross domestic product data are of very low quality, especially in Africa. When instead viewed from the perspective of effective technology, as suggested in endogenous growth frameworks (and as proxied by educational attainment), the African urbanization experience overall matches global patterns. There are differences, however, at the sector level. Agricultural trade effects that improve farm prices deter African urbanization, while they promote urbanization elsewhere. Potential reasons include differences in land ownership institutions and the likelihood of agricultural surpluses being invested in urban production. Positive shocks to modern manufacturing spur urbanization in the rest of the developing world, but effects are dependent on the level of development. Thus many countries in Africa, with their lower level of development, do not respond to these shocks. Finally, historical indicators of the potential for good institutions promote urbanization both inside and outside Africa. -
Publication
The Connectivity of South Asian Cities in Infrastructure Networks
(Taylor and Francis, 2013-11-05) Derudder, Ben ; Liu, Xingjian ; Kunaka, Charles ; Roberts, MarkThis map summarizes information on the connectivity of 67 important South Asian cities concerning infrastructure networks. The map combines four information layers to reveal a city's overall stature in the region's infrastructure networks, i.e. rail, road, air, and information technology networks. Three dimensions of connectivity are shown: edge thickness reflecting tie strength between pairs of cities; node size reflecting a city's betweenness centrality; and node color reflecting the dominant geographical orientation of a city's connections. A threshold is used for the edges to ensure the map does not appear clogged. The map shows that major connections tend to be within-country linkages between large cities. There are five communities in South Asia's urban infrastructure networks, which largely follow national borders. Delhi, Mumbai, Lahore, Karachi, Chennai, Colombo and Dhaka are shown to be important nodes for the infrastructural integration of South Asia, as these cities mediate flows between relatively unconnected communities and cities. -
Publication
Cities of Workers, Children, or Seniors? Age Structure and Economic Growth in a Global Cross-Section of Cities
(World Bank, Washington, DC, 2019-10) Jedwab, Remi ; Pereira, Daniel ; Roberts, MarkA large literature documents the positive influence of a city's skill structure on its rate of economic growth. By contrast, the effect of a city's age structure on its economic growth has been a hitherto largely neglected area of research. This paper hypothesizes that cities with more working-age adults are likely to grow faster than cities with more children or seniors. The paper sets out the potential channels through which such differential growth may occur. Using data from a variety of historical and contemporary sources, it shows that there exists marked variation in the age structure of the world's largest cities, across cities and over time. It then studies how age structure affects economic growth for a global cross-section of mega-cities. Using various identification strategies, the analysis finds that mega-cities with higher dependency ratios, that is, with more children and/or seniors per working-age adult, grow significantly slower. Such effects are particularly pronounced for cities with high shares of children. This result appears to be driven mainly by the direct, negative effects of a higher dependency ratio on the size of the working-age population and the indirect effects on work hours and productivity for working-age adults within a city. -
Publication
Reshaping Economic Geography : Implications for New EU Member States
(World Bank, Washington, DC, 2009-04) Gill, Indermit ; Goh, Chor-ching ; Roberts, MarkThe ongoing crisis should spur deeper European integration, rather than a return to the nationalism of the past. The World Development Report 2009, reshaping economic geography, spotlights several issues for new European Union (EU) member states. From 1950 to 1990, Eastern Europe was impermeable to the flow of goods, services and ideas from the West, and grew slowly. During the same period, gross domestic product (GDP) per capita in fourteen Western European economies grew at three times the pace of Eastern Europe. The drivers of West European growth were market economies, regional cooperation, and global economic integration. The European Economic Community, started by six Western European nations in 1957, continued to increase its membership with the ultimate aim of full economic and monetary integration. After the collapse of the former Soviet Union in 1991, the EU10 countries, along with Malta and Cyprus, joined the expanded European Union, an economic zone based on the principles of democracy, markets and the free mobility of goods, capital and labor. The 27country European Union has a combined population of almost 500 million people and accounts for over 30 percent of the world's GDP. But the legacy of division has meant that the EU10 countries lag considerably behind most of the other member states. While the EU10 have brought 123 million people into the European Union, they have reduced its average level of GDP per capita by an estimated 15.6 percent. -
Publication
Hukou and Highways: The Impact of China’s Spatial Development Policies on Urbanization and Regional Inequality
(World Bank, Washington, DC, 2015-06) Bosker, Maarten ; Deichmann, Uwe ; Roberts, MarkChina has used two main spatial policies to shape its geographic patterns of development: restricted labor mobility through the Hukou residential registration system and massive infrastructure investment, notably a 96,000 kilometer national expressway network. This paper develops a structural new economic geography model to examine the impacts of these policies. Fitting the model to available data allows simulating counterfactual scenarios comparing each policy’s respective impact on regional economic development and urbanization patterns across China. The results suggest large overall economic benefits from constructing the national expressway network and abolishing the Hukou system. Yet, the spatial impacts of the two policies are very different. The construction of the national expressway network reinforced existing urbanization patterns. The initially lagging regions not connected to the network have not benefitted much from its construction. By contrast, removal of the Hukou restrictions, which Chinese policy makers are considering, would result in much more widespread welfare gains, allowing everyone to gain by moving to where he or she is most productive. Removal of the Hukou restrictions would also promote urbanization in currently lagging (inland) regions, mostly by stimulating rural to urban migration. -
Publication
Leveraging Urbanization in South Asia: Managing Spatial Transformation for Prosperity and Livability
(Washington, DC: World Bank, 2016) Ellis, Peter ; Roberts, MarkThe number of people in South Asia's cities rose by 130 million between 2000 and 2011--more than the entire population of Japan. This was linked to an improvement in productivity and a reduction in the incidence of extreme poverty. But the region's cities have struggled to cope with the pressure of population growth on land, housing, infrastructure, basic services, and the environment. As a result, urbanization in South Asia remains underleveraged in its ability to deliver widespread improvements in both prosperity and livability. Leveraging Urbanization in South Asia is about the state of South Asia's urbanization and the market and policy failures that have taken the region’s urban areas to where they are today--and the hard policy actions needed if the region’s cities are to leverage urbanization better. This publication provides original empirical and diagnostic analysis of urbanization and related economic trends in the region. It also discusses in detail the key policy areas, the most fundamental being urban governance and finance, where actions must be taken to make cities more prosperous and livable. -
Publication
A Free, Open-Source Tool for Identifying Urban Agglomerations Using Point Data
(Taylor and Francis, 2015-10-29) Day, Jennifer ; Chen, Yiqun ; Ellis, Peter ; Roberts, MarkThis paper describes a software tool for identifying urban agglomerations in low-information settings. The framework outlined in this paper is designed to work using point data. Our tool and all required data are provided free and in open-source format. This paper describes the advantages and disadvantages of using point-based geographies in regional analysis, discusses the practical and ethical challenges of distinguishing urban from rural regions, details the function of our software, and directs the interested reader to the source code. The paper also examines the tool's outputs for Sri Lanka and compares them with published United Nations urbanization figures. Our outputs indicate that Sri Lanka's urban population is significantly undercounted in official statistics. -
Publication
Identifying the Economic Potential of Indian Districts
(World Bank, Washington, DC, 2016-04) Roberts, MarkDespite its rapid growth in recent decades, GDP per capita in India remains at a relatively low level by international standards, and the country continues to be marked by large subnational disparities in levels of well-being. These large disparities naturally lead to interest in India’s spatial landscape of potential for economic development. Against this backdrop, this paper presents the results of an analysis of underlying variations in economic potential across Indian districts, where economic potential is defined as the extent to which a district possesses factors that are important determinants of the ability to experience a high level of productivity. The analysis is based on a simple composite Economic Potential Index, which is constructed from variables for which robust evidence exists of their importance as determinants of local productivity. From the analysis, a picture emerges of a heterogeneous landscape of economic potential characterized by strong geographic clustering of districts. The paper also reveals particularly high levels of underperformance, relative to potential, for districts in Uttar Pradesh. -
Publication
Time to ACT: Realizing Indonesia's Urban Potential
(Washington, DC: World Bank, 2019-10-03) Roberts, Mark ; Gil Sander, Frederico ; Tiwari, Sailesh ; Roberts, Mark ; Gil Sander, Frederico ; Tiwari, SaileshIn over 70 years since its independence, Indonesia has been transformed by urbanization, and within the next quarter of a century, its transition to an urban society will be almost complete. While urbanization has produced considerable benefits for Indonesians, urbanization has the potential to deliver more prosperity, inclusiveness and livability. Time to ACT: Realizing Indonesia's Urban Potential explores the extent to which urbanization in Indonesia has delivered in terms of prosperity, inclusiveness, and livability, and the fundamental reforms that can help the country realize its urban potential. In doing so, the report introduces a new policy framework - the ACT framework - to guide policymaking. This framework emphasizes three policy principles - the need to Augment the provision and quality of infrastructure and basic services across urban and rural locations; the need to better Connect places and people with jobs and opportunities; and the need to Target lagging areas and marginalized groups through well-designed place-based policies, as well as thoughtful urban planning and design. Using this framework, the report provides policy recommendations differentiated by types of place, grounded in solid empirical evidence -
Publication
Definition Matters: Metropolitan Areas and Agglomeration Economies in a Large Developing Country
(World Bank, Washington, DC, 2019-09) Bosker, Maarten ; Park, Jane ; Roberts, MarkA variety of approaches to delineate metropolitan areas have been developed. Systematic comparisons of these approaches in terms of the urban landscape that they generate are however few. Our paper aims to fill this gap. We focus on Indonesia and make use of the availability of data on commuting flows, remotely-sensed nighttime lights, and spatially fine-grained population, to construct metropolitan areas using the different approaches that have been developed in the literature. We find that the maps and characteristics of Indonesia’s urban landscape vary substantially depending on the approach used. Moreover, combining information on the metro areas generated by the different approaches with detailed micro-data from Indonesia’s national labor force survey, we show that the estimated size of the agglomeration wage premium depends nontrivially on the approach used to define metropolitan areas.
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