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Urban Growth in Developing Countries: A Review of Current Trends and a Caution Regarding Existing Forecasts

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  1. Wenze Yue & Yong Liu & Peilei Fan, 2010. "Polycentric Urban Development: The Case of Hangzhou," Environment and Planning A, , vol. 42(3), pages 563-577, March.
  2. Nuno Norte Pinto & António Pais Antunes, 2010. "A Cellular Automata Model Based on Irregular Cells: Application to Small Urban Areas," Environment and Planning B, , vol. 37(6), pages 1095-1114, December.
  3. Minmin Li & Zengxiang Zhang & Danny Lo Seen & Jian Sun & Xiaoli Zhao, 2016. "Spatiotemporal Characteristics of Urban Sprawl in Chinese Port Cities from 1979 to 2013," Sustainability, MDPI, vol. 8(11), pages 1-23, November.
  4. Sajjad Hussain & Linlin Lu & Muhammad Mubeen & Wajid Nasim & Shankar Karuppannan & Shah Fahad & Aqil Tariq & B. G. Mousa & Faisal Mumtaz & Muhammad Aslam, 2022. "Spatiotemporal Variation in Land Use Land Cover in the Response to Local Climate Change Using Multispectral Remote Sensing Data," Land, MDPI, vol. 11(5), pages 1-19, April.
  5. Tatsuya Makino & Keigo Noda & Keoduangchai Keokhamphui & Hiromasa Hamada & Kazuo Oki & Taikan Oki, 2016. "The Effects of Five Forms of Capital on Thought Processes Underlying Water Consumption Behavior in Suburban Vientiane," Sustainability, MDPI, vol. 8(6), pages 1-13, June.
  6. Jaramillo, Ciro & Lizárraga, Carmen & Grindlay, Alejandro Luis, 2012. "Spatial disparity in transport social needs and public transport provision in Santiago de Cali (Colombia)," Journal of Transport Geography, Elsevier, vol. 24(C), pages 340-357.
  7. Zhou, Yuan & Staatz, John, 2016. "Projected demand and supply for various foods in West Africa: Implications for investments and food policy," Food Policy, Elsevier, vol. 61(C), pages 198-212.
  8. Kyle Farrell, 2017. "The Rapid Urban Growth Triad: A New Conceptual Framework for Examining the Urban Transition in Developing Countries," Sustainability, MDPI, vol. 9(8), pages 1-19, August.
  9. Martin Ravallion & Shaohua Chen & Prem Sangraula, 2007. "New Evidence on the Urbanization of Global Poverty," Population and Development Review, The Population Council, Inc., vol. 33(4), pages 667-701, December.
  10. Cris Beauchemin & Philippe Bocquier, 2004. "Migration and Urbanisation in Francophone West Africa: An Overview of the Recent Empirical Evidence," Urban Studies, Urban Studies Journal Limited, vol. 41(11), pages 2245-2272, October.
  11. Mackay, Heather, 2018. "Mapping and characterising the urban agricultural landscape of two intermediate-sized Ghanaian cities," Land Use Policy, Elsevier, vol. 70(C), pages 182-197.
  12. repec:dau:papers:123456789/4463 is not listed on IDEAS
  13. Ruci Wang & Ahmed Derdouri & Yuji Murayama, 2018. "Spatiotemporal Simulation of Future Land Use/Cover Change Scenarios in the Tokyo Metropolitan Area," Sustainability, MDPI, vol. 10(6), pages 1-18, June.
  14. Olaya, Yris & Vásquez, Felipe & Müller, Daniel B., 2017. "Dwelling stock dynamics for addressing housing deficit," Resources, Conservation & Recycling, Elsevier, vol. 123(C), pages 187-199.
  15. Deborah Potts, 2018. "Urban data and definitions in sub-Saharan Africa: Mismatches between the pace of urbanisation and employment and livelihood change," Urban Studies, Urban Studies Journal Limited, vol. 55(5), pages 965-986, April.
  16. Omar Hamdy & Mohamed Hssan Hassan Abdelhafez & Mabrouk Touahmia & Mohammed Alshenaifi & Emad Noaime & Khaled Elkhayat & Mohammed Alghaseb & Ayman Ragab, 2023. "Simulation of Urban Areas Exposed to Hazardous Flash Flooding Scenarios in Hail City," Land, MDPI, vol. 12(2), pages 1-23, January.
  17. Timilsina, Raja R & Kotani, Koji & Nakagawa, Yoshinori & Saijo, Tatsuyoshi, 2021. "Concerns for future generations in societies: A deliberative analysis of the intergenerational sustainability dilemma," Journal of Behavioral and Experimental Economics (formerly The Journal of Socio-Economics), Elsevier, vol. 90(C).
  18. Owen Crankshaw & Jacqueline Borel-Saladin, 2019. "Causes of urbanisation and counter-urbanisation in Zambia: Natural population increase or migration?," Urban Studies, Urban Studies Journal Limited, vol. 56(10), pages 2005-2020, August.
  19. Akhtar Rehman & Jun Qin & Amjad Pervez & Muhammad Sadiq Khan & Siddique Ullah & Khalid Ahmad & Nazir Ur Rehman, 2022. "Land-Use/Land Cover Changes Contribute to Land Surface Temperature: A Case Study of the Upper Indus Basin of Pakistan," Sustainability, MDPI, vol. 14(2), pages 1-15, January.
  20. Bing Sheng Wu & Daniel Sui, 2016. "Modeling impacts of globalization on desakota regions: a case study of Taipei Metropolitan Area," Environment and Planning B, , vol. 43(2), pages 320-340, March.
  21. Hirotsugu Uchida & Andrew Nelson, 2010. "Agglomeration Index: Towards a New Measure of Urban Concentration," WIDER Working Paper Series wp-2010-029, World Institute for Development Economic Research (UNU-WIDER).
  22. Huafang Huang & Sharafat Ali & Yasir Ahmed Solangi, 2023. "Analysis of the Impact of Economic Policy Uncertainty on Environmental Sustainability in Developed and Developing Economies," Sustainability, MDPI, vol. 15(7), pages 1-19, March.
  23. Sameeh Alarabi & Fawaz Alasmari, 2023. "Challenges and Opportunities for Small Cities in the Kingdom of Saudi Arabia: A Study of Expert Perceptions," Sustainability, MDPI, vol. 15(8), pages 1-16, April.
  24. Jing Yang & Feng Shi & Yizhong Sun & Jie Zhu, 2019. "A Cellular Automata Model Constrained by Spatiotemporal Heterogeneity of the Urban Development Strategy for Simulating Land-use Change: A Case Study in Nanjing City, China," Sustainability, MDPI, vol. 11(15), pages 1-19, July.
  25. Ebenezer Owusu-Sekyere & Robert Yakubu Adjuik & Emmanuel Wedam, 2017. "The Central Medical Store Fire Disaster: A Test for Institutional Compliance in Disaster Prevention in Ghana," SAGE Open, , vol. 7(2), pages 21582440176, April.
  26. Lozano-Gracia, Nancy & Young, Cheryl, 2014. "Housing consumption and urbanization," Policy Research Working Paper Series 7112, The World Bank.
  27. Oviedo Hernandez, Daniel & Titheridge, Helena, 2016. "Mobilities of the periphery: Informality, access and social exclusion in the urban fringe in Colombia," Journal of Transport Geography, Elsevier, vol. 55(C), pages 152-164.
  28. William T O'Brien & Christopher A Kennedy & Andreas K Athienitis & Ted J Kesik, 2010. "The Relationship between Net Energy Use and the Urban Density of Solar Buildings," Environment and Planning B, , vol. 37(6), pages 1002-1021, December.
  29. Wang, Bo & Li, Fan & Feng, Shuyi & Shen, Tong, 2020. "Transfer of development rights, farmland preservation, and economic growth: a case study of Chongqing’s land quotas trading program," Land Use Policy, Elsevier, vol. 95(C).
  30. Deborah Potts, 2005. "Counter-urbanisation on the Zambian Copperbelt? Interpretations and Implications," Urban Studies, Urban Studies Journal Limited, vol. 42(4), pages 583-609, April.
  31. Cohen, Barney, 2006. "Urbanization in developing countries: Current trends, future projections, and key challenges for sustainability," Technology in Society, Elsevier, vol. 28(1), pages 63-80.
  32. van Duijne, Robbin Jan, 2019. "Why India’s urbanization is hidden: Observations from “rural” Bihar," World Development, Elsevier, vol. 123(C), pages 1-1.
  33. Gurgel, Angelo Costa, 2007. "Trade Agreements and their Impacts on the Familiar Agriculture in Brazil," Conference papers 331587, Purdue University, Center for Global Trade Analysis, Global Trade Analysis Project.
  34. Miriam Steurer & Caroline Bayr, 2020. "Measuring Urban Sprawl using Land Use Data," Graz Economics Papers 2020-02, University of Graz, Department of Economics.
  35. Yenal Surec & Salih Katircioğlu, 2020. "The role of urbanization in the international trade of services," Managerial and Decision Economics, John Wiley & Sons, Ltd., vol. 41(6), pages 943-951, September.
  36. Vanhatalo, Jaana & Partanen, Jenni, 2022. "Exploring the spectrum of urban area key figures using data from Finland and proposing guidelines for delineation of urban areas," Land Use Policy, Elsevier, vol. 112(C).
  37. Fox, Sean & Wolf, Levi John, 2022. "What makes a place urban?," SocArXiv qfvry, Center for Open Science.
  38. David E. Bloom & David Canning & Günther Fink & Tarun Khanna & Patrick Salyer, 2007. "Urban Settlement: Data, Measures, and Trends," PGDA Working Papers 2907, Program on the Global Demography of Aging.
  39. Menashe-Oren, A. & Stecklov, G., 2017. "IFAD RESEARCH SERIES 17 - Population age structure and sex composition in sub-Saharan Africa: a rural-urban perspective," IFAD Research Series 280055, International Fund for Agricultural Development (IFAD).
  40. Potts, Deborah, 2017. "Conflict and Collisions in Sub-Saharan African Urban Definitions: Interpreting Recent Urbanization Data From Kenya," World Development, Elsevier, vol. 97(C), pages 67-78.
  41. Fikri Zul Fahmi, 2015. "Regional Distribution of Creative and Cultural Industries in Indonesia," ERSA conference papers ersa15p914, European Regional Science Association.
  42. Marcillo-Delgado, J.C. & Ortego, M.I. & Pérez-Foguet, A., 2019. "A compositional approach for modelling SDG7 indicators: Case study applied to electricity access," Renewable and Sustainable Energy Reviews, Elsevier, vol. 107(C), pages 388-398.
  43. Long Cheng & Zhengchun Xu & Jintao Li, 2022. "Promote or Demote? Investigating the Impacts of China’s Transferable Development Rights Program on Farmers’ Income: A Case Study from Chongqing," IJERPH, MDPI, vol. 19(21), pages 1-20, October.
  44. José Armando Cobián Álvarez & Budy P. Resosudarmo, 2019. "The cost of floods in developing countries’ megacities: a hedonic price analysis of the Jakarta housing market, Indonesia," Environmental Economics and Policy Studies, Springer;Society for Environmental Economics and Policy Studies - SEEPS, vol. 21(4), pages 555-577, October.
  45. Yue Lin & Mengjun Kang & Biao He, 2021. "Spatial pattern analysis of address quality: A study on the impact of rapid urban expansion in China," Environment and Planning B, , vol. 48(4), pages 724-740, May.
  46. Ruci Wang & Hao Hou & Yuji Murayama, 2018. "Scenario-Based Simulation of Tianjin City Using a Cellular Automata–Markov Model," Sustainability, MDPI, vol. 10(8), pages 1-20, July.
  47. Laurent Parrot & Clovis Dongmo & Michel Ndoumbé & Christine Poubom, 2008. "Horticulture, livelihoods, and urban transition in Africa: evidence from South‐West Cameroon," Agricultural Economics, International Association of Agricultural Economists, vol. 39(2), pages 245-256, September.
  48. Anthony P. D'Costa, 2004. "Globalization, Development, and Mobility of Technical Talent: India and Japan in Comparative Perspectives," WIDER Working Paper Series RP2004-62, World Institute for Development Economic Research (UNU-WIDER).
  49. Eric de Noronha Vaz & Peter Nijkamp & Marco Painho & Mario Gaetano, 2011. "A Multi-Scenario Forecast of Urban Change: A Study on Urban Growth in the Algarve," Tinbergen Institute Discussion Papers 11-142/3, Tinbergen Institute.
  50. Michal Lyons & Simon Snoxell, 2005. "Creating Urban Social Capital: Some Evidence from Informal Traders in Nairobi," Urban Studies, Urban Studies Journal Limited, vol. 42(7), pages 1077-1097, June.
  51. Alison Brown & Michal Lyons & Ibrahima Dankoco, 2010. "Street Traders and the Emerging Spaces for Urban Voice and Citizenship in African Cities," Urban Studies, Urban Studies Journal Limited, vol. 47(3), pages 666-683, March.
  52. Ulep, Valerie Gilbert T. & Ortiz, Danica Aisa P. & Go, John Juliard & Duante, Charmaine & Gonzales, Rosa C. & Mendoza, Laurita R. & Reyes, Clarissa & Elgo, Frances Rose & Aldeon, Melanie P., 2012. "Inequities in Noncommunicable Diseases," Discussion Papers DP 2012-04, Philippine Institute for Development Studies.
  53. Chen, Shaohua & Ravallion, Martin, 2007. "Absolute poverty measures for the developing world, 1981-2004," Policy Research Working Paper Series 4211, The World Bank.
  54. Sebastian Scheuer & Dagmar Haase & Martin Volk, 2016. "On the Nexus of the Spatial Dynamics of Global Urbanization and the Age of the City," PLOS ONE, Public Library of Science, vol. 11(8), pages 1-20, August.
  55. Catherine D. Luyt & Roman Tandlich & Wilhelmine J. Muller & Brendan S. Wilhelmi, 2012. "Microbial Monitoring of Surface Water in South Africa: An Overview," IJERPH, MDPI, vol. 9(8), pages 1-25, July.
  56. Dadashpoor, Hashem & Ahani, Somayeh, 2021. "Explaining objective forces, driving forces, and causal mechanisms affecting the formation and expansion of the peri-urban areas: A critical realism approach," Land Use Policy, Elsevier, vol. 102(C).
  57. Admasu, Wubante Fetene & Van Passel, Steven & Minale, Amare Sewnet & Tsegaye, Enyew Adgo & Azadi, Hossein & Nyssen, Jan, 2019. "Take out the farmer: An economic assessment of land expropriation for urban expansion in Bahir Dar, Northwest Ethiopia," Land Use Policy, Elsevier, vol. 87(C).
  58. Montoya-Robledo, Valentina & Escovar-Álvarez, Germán, 2020. "Domestic workers’ commutes in Bogotá: Transportation, gender and social exclusion," Transportation Research Part A: Policy and Practice, Elsevier, vol. 139(C), pages 400-411.
  59. Rebecca Rasch, 2014. "Measuring the Middle Class in Middle Income Countries," LIS Working papers 611, LIS Cross-National Data Center in Luxembourg.
  60. Sridhar, Kala Seetharam, 2007. "Density gradients and their determinants: Evidence from India," Regional Science and Urban Economics, Elsevier, vol. 37(3), pages 314-344, May.
  61. David E. Bloom & David Canning & Günther Fink & Tarun Khanna & Patrick Salyer, 2007. "Urban Settlement: Data, Measures, and Trends," PGDA Working Papers 2907, Program on the Global Demography of Aging.
  62. Ana Goncalves & Tiago Domingos, 2011. "Urban Growth and Its Impact on Development," ERSA conference papers ersa10p98, European Regional Science Association.
  63. Ward, Catherine D. & Shackleton, Charlie M., 2016. "Natural Resource Use, Incomes, and Poverty Along the Rural–Urban Continuum of Two Medium-Sized, South African Towns," World Development, Elsevier, vol. 78(C), pages 80-93.
  64. Amy K. Glasmeier & Molly Nebiolo, 2016. "Thinking about Smart Cities: The Travels of a Policy Idea that Promises a Great Deal, but So Far Has Delivered Modest Results," Sustainability, MDPI, vol. 8(11), pages 1-11, November.
  65. Tie-Ying Liu & Chi-Wei Su & Xu-Zhao Jiang, 2016. "Is China’S Urbanization Convergent?," The Singapore Economic Review (SER), World Scientific Publishing Co. Pte. Ltd., vol. 61(05), pages 1-18, December.
  66. Headey, Derek & Bezemer, Dirk & Hazell, Peter B., 2008. "Agricultural exit problems: Causes and consequences," IFPRI discussion papers 802, International Food Policy Research Institute (IFPRI).
  67. Michal Lyons & Simon Snoxell, 2005. "Sustainable Urban Livelihoods and Marketplace Social Capital: Crisis and Strategy in Petty Trade," Urban Studies, Urban Studies Journal Limited, vol. 42(8), pages 1301-1320, July.
  68. Ashantha Goonetilleke & Tan Yigitcanlar & Godwin A. Ayoko & Prasanna Egodawatta, 2014. "Sustainable Urban Water Environment," Books, Edward Elgar Publishing, number 14894.
  69. Golam MOINUDDIN, 2013. "Urban Basic Utilities Management Under Fragmented Governance: An Oratory On Its Contribution In Cities Of Developing World," Theoretical and Empirical Researches in Urban Management, Research Centre in Public Administration and Public Services, Bucharest, Romania, vol. 8(4), pages 85-106, November.
  70. Sara T Borgström, 2009. "Patterns and Challenges of Urban Nature Conservation—A Study of Southern Sweden," Environment and Planning A, , vol. 41(11), pages 2671-2685, November.
  71. Annemarie Schneider & Curtis E. Woodcock, 2008. "Compact, Dispersed, Fragmented, Extensive? A Comparison of Urban Growth in Twenty-five Global Cities using Remotely Sensed Data, Pattern Metrics and Census Information," Urban Studies, Urban Studies Journal Limited, vol. 45(3), pages 659-692, March.
  72. Fahmi, Fikri Zul & Mendrofa, Martha Jesica S., 2023. "Rural transformation and the development of information and communication technologies: Evidence from Indonesia," Technology in Society, Elsevier, vol. 75(C).
  73. Willem Paling, 2012. "Planning a Future for Phnom Penh: Mega Projects, Aid Dependence and Disjointed Governance," Urban Studies, Urban Studies Journal Limited, vol. 49(13), pages 2889-2912, October.
  74. Lyons, Michal & Brown, Alison, 2010. "Has Mercantilism Reduced Urban Poverty in SSA? Perception of Boom, Bust, and the China-Africa Trade in Lomé and Bamako," World Development, Elsevier, vol. 38(5), pages 771-782, May.
  75. Jill Wigle, 2010. "Social Relations, Property and ‘Peripheral’ Informal Settlement: The Case of Ampliación San Marcos, Mexico City," Urban Studies, Urban Studies Journal Limited, vol. 47(2), pages 411-436, February.
  76. Mingxing Chen & Chao Ye, 2014. "Differences in Pattern and Driving Forces between Urban and Rural Settlements in the Coastal Region of Ningbo, China," Sustainability, MDPI, vol. 6(4), pages 1-20, April.
  77. Michail Fragkias & Karen C Seto, 2007. "Modeling Urban Growth in Data-Sparse Environments: A New Approach," Environment and Planning B, , vol. 34(5), pages 858-883, October.
  78. Kala Seetharam Sridhar & A. Venugopala Reddy, 2011. "Investment and Economic Opportunities: Urbanization, Infrastructure and Governance in The North and South of India," Asia-Pacific Development Journal, United Nations Economic and Social Commission for Asia and the Pacific (ESCAP), vol. 18(1), pages 1-46, June.
  79. Valeria Groppo, 2014. "Internal Migration in Developing Countries," DIW Roundup: Politik im Fokus 31, DIW Berlin, German Institute for Economic Research.
  80. Martinez-Harms, Maria Jose & Bryan, Brett A. & Figueroa, Eugenio & Pliscoff, Patricio & Runting, Rebecca K. & Wilson, Kerrie A., 2017. "Scenarios for land use and ecosystem services under global change," Ecosystem Services, Elsevier, vol. 25(C), pages 56-68.
  81. Quddus Tushar & Guomin Zhang & Satheeskumar Navaratnam & Muhammed A. Bhuiyan & Lei Hou & Filippo Giustozzi, 2023. "A Review of Evaluative Measures of Carbon-Neutral Buildings: The Bibliometric and Science Mapping Analysis towards Sustainability," Sustainability, MDPI, vol. 15(20), pages 1-31, October.
  82. Steurer, Miriam & Bayr, Caroline, 2020. "Measuring urban sprawl using land use data," Land Use Policy, Elsevier, vol. 97(C).
  83. David Castells & Vicente Royuela, 2012. "Agglomeration, Inequality and Economic Growth: Cross-section and panel data analysis," ERSA conference papers ersa12p492, European Regional Science Association.
  84. Xinping Zhang & Dexiang Wang & Hongke Hao & Fangfang Zhang & Youning Hu, 2017. "Effects of Land Use/Cover Changes and Urban Forest Configuration on Urban Heat Islands in a Loess Hilly Region: Case Study Based on Yan’an City, China," IJERPH, MDPI, vol. 14(8), pages 1-25, July.
  85. Anirudh Krishna, 2018. "Globalised growth in largely agrarian contexts: the urban–rural divide," Global Development Institute Working Paper Series esid-101-18, GDI, The University of Manchester.
  86. Uzma Tabassum & Munazah Nazeer, 2021. "Determinants of Economic City Size," Economic Studies journal, Bulgarian Academy of Sciences - Economic Research Institute, issue 7, pages 107-128.
  87. Potts, Deborah, 2012. "Challenging the Myths of Urban Dynamics in Sub-Saharan Africa: The Evidence from Nigeria," World Development, Elsevier, vol. 40(7), pages 1382-1393.
  88. Wei Wang & Yuzhe Wu, 2020. "Exploring the Coordination Mechanism for Public Housing Supply with Urban Growth Management: A Case Study of Chongqing, China," Sustainability, MDPI, vol. 12(10), pages 1-16, May.
  89. Yuzhe Wu & Huiqiong Zhu & Sheng Zheng, 2022. "The Local Land Finance Transformation with the Synergy of Increment and Inventory: A Case Study in China," Land, MDPI, vol. 11(9), pages 1-18, September.
  90. Sean Fox & Robin Bloch & Jose Monroy, 2018. "Understanding the dynamics of Nigeria’s urban transition: A refutation of the ‘stalled urbanisation’ hypothesis," Urban Studies, Urban Studies Journal Limited, vol. 55(5), pages 947-964, April.
  91. Philippe Bocquier, 2005. "World Urbanization Prospects," Demographic Research, Max Planck Institute for Demographic Research, Rostock, Germany, vol. 12(9), pages 197-236.
  92. Tandel, Vaidehi & Hiranandani, Komal & Kapoor, Mudit, 2019. "What’s in a definition? A study on the suitability of the current urban definition in India through its employment guarantee programme," Journal of Asian Economics, Elsevier, vol. 60(C), pages 69-84.
  93. Pankaj Bajracharya & Selima Sultana, 2020. "Rank-size Distribution of Cities and Municipalities in Bangladesh," Sustainability, MDPI, vol. 12(11), pages 1-26, June.
  94. Lei Yao & Wentian Xu & Ying Xu & Shuo Sun, 2022. "Examining the Potential Scaling Law in Urban PM2.5 Pollution Risks along with the Nationwide Air Environmental Effort in China," IJERPH, MDPI, vol. 19(8), pages 1-18, April.
  95. Florin Teodor Boldeanu & Ileana Tache, 2016. "A Regional Approach To The Metropolitan Economic Grwoth: Evidence From The European Union," Journal of Smart Economic Growth, , vol. 1(1), pages 29-72, August.
  96. Jing Xu & Jing Huang & Zhengfeng Zhang & Xiaokun Gu, 2021. "The Impact of Family Capital on Farmers’ Participation in Farmland Transfer: Evidence from Rural China," Land, MDPI, vol. 10(12), pages 1-20, December.
  97. Carmen Lizarraga & Ciro Jaramillo & Alejandro L. Grindlay, 2011. "Urban development and transport disadvantage: Methodology to evaluate social transport needs in Latin American cities," ERSA conference papers ersa11p936, European Regional Science Association.
  98. Julius Huho & Margaret Muriuki, 2021. "Enhancing food security through home gardening in urbanizing environment in Machakos County, Kenya," International Journal of Research in Business and Social Science (2147-4478), Center for the Strategic Studies in Business and Finance, vol. 10(3), pages 450-455, April.
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