Urbanization And Agricultural Structural Adjustments

Urbanization presents both opportunities and challenges to agriculture. This paper analyzes the effect of urbanization on the structure and profitability of agriculture at the rural-urban fringe. We develop a theoretical model accounting for changes in the amount of urban development, the level of fragmentation, and population density associated with urbanization. We show that urbanization not only affects the land allocation between traditional and high value crops, but also changes relative input and output prices for the two types of crops. We conduct an empirical analysis to estimate the effect of increasing population density and urban fragmentation on farm returns for a set of European metropolises using a Bayesian averaged model that deals with model uncertainty. Our results show that increasing population density increases farm returns while increasing land fragmentation may have a detrimental effect in the beginning but a positive effect for high levels of fragmentation.

This book examines long-term structural changes and the broad impact on economic development in regional comparative perspectives. The book analyzes data across Africa, Asia and Latin America. It looks at key variables of productivity growth, industrialization, poverty, urbanization, and employment. This book is concerned with understanding structural change dynamics and how it affects job creation, living standards, and the efficiency of productive cities through manufacturing productivity growth that benefits majority of citizens. With empirical evidence from a selected number of developing countries including China, India, Brazil, Nigeria and South Africa, the book attempts to present the considerable structural changes of these countries over the last few decades. It highlights that growth without the expected job creation is one of the distinct features of growth in emerging and developing countries. It suggests that countries may well record economic growth, whether through within sector productivity increase or through structural change, but this may not necessarily lead to employment, an important concern for long-term development.

Rapid structural transformation and urbanization are transforming agriculture and food production in rural areas across the world. This textbook provides a comprehensive review and assessment of the multi-faceted nature of agriculture and rural development, particularly in the developing world, where the greatest challenges occur. It is designed around five thematic parts: Agricultural Intensification and Technical Change; Political Economy of Agricultural Policies; Community and Rural Institutions; Agriculture, Nutrition, and Health; and Future Relevance of International Institutions. Each chapter presents a detailed but accessible review of the literature on the specific topic and discusses the frontiers in research and institutional changes needed as societies adapt to the transformation processes. All authors are eminent scholars with international reputations, who have been actively engaged in the contemporary debates around agricultural development and rural transformation.

It devotes attention to the role of rural-to-urban migration and its causes; the authors present theoretical and empirical investigations of neoclassical economic models, non-neoclassical economic models, and demographic cohort models of urbanization and urban wage and employment structures.

Agrarian Landscapes in Transition researches human interaction with the earth. With hundreds of acres of agricultural land going out of production every day, the introduction, spread, and abandonment of agriculture represents the most pervasive alteration of the Earth's environment for several thousand years. What happens when humans impose their spatial and temporal signatures on ecological regimes, and how does this manipulation affect the earth and nature's desire for equilibrium? Studies were conducted at six Long Term Ecological Research sites within the US, including New England, the Appalachian Mountains, Colorado, Michigan, Kansas, and Arizona. While each site has its own unique agricultural history, patterns emerge that help make sense of how our actions have affected the earth, and how the earth pushes back. The book addresses how human activities influence the spatial and temporal structures of agrarian landscapes, and how this varies over time and across biogeographic regions. It also looks at the ecological and environmental consequences of the resulting structural changes, the human responses to these changes, and how these responses drive further changes in agrarian landscapes. The time frames studied include the ecology of the earth before human interaction, pre-European human interaction during the rise and fall of agricultural land use, and finally the biological and cultural response to the abandonment of farming, due to complete abandonment or a land-use change such as urbanization.

Poverty can be overcome, and that the poor can increased their income and production within an appropriate framework. Part of that framework is made up of a flow of resources and local-level institutional development, and their is considerable scope for improvement in both. However, the impact of investment and organization is strictly determined by the nature of the policy environment. While project and programmes can bring some relief to the rural poor, substantial change needs a strong policy commitment. While the poor can overcome poverty, they will not be able to until this becomes a major focus of national policy and action. In the main, this sort of commitment has not been made in the past at the expense of both the poor and overall development in many areas.

The 2017 Economic Report on Africa focuses on the linkages between industrialization and urbanization. Urbanization is one of Africa mega trends with profound implications for the social, economic, environmental dimensions of growth and transformation. Theory and experience demonstrate that industrialization and urbanization can be mutually reinforcing processes. It is therefore imperative to explore the linkages between urbanization and industrialization given the profound implications for structural transformation in Africa. So far, current policy narratives and frameworks on structural transformation and industrialization in Africa have largely failed to factor in the spatial and urban dimensions of industrialization, and in particular the advantages presented by productivity enhancement and agglomeration effects generated by cities. Yet, the nexus between urbanization and industrialization is of particular relevance for Agenda 2063 and the 2030 Agenda on Sustainable Development. Both agendas recognize urbanization as a critical factor for sustainable development. It is also important to consider urbanization and industrialization in light of Africa's engagement with the Third United Nations Conference on Housing and Sustainable Urban Development (Habitat III) to be held in Quito, Ecuador in October 2016. In this context, African policy makers have clearly recognized urbanization as an engine of structural transformation for inclusive and sustainable growth.

Maize is one of the world’s highest value crops, with a multibillion dollar annual contribution to agriculture. The great adaptability and high yields available for maize as a food, feed and forage crop have led to its current production on over 140 million hectares worldwide, with acreage continuing to grow at the expense of other crops. In terms of tons of cereal grain produced worldwide, maize has been number one for many years. Moreover, maize is expanding its contribution to non-food uses, including as a major source of ethanol as a fuel additive or fuel alternative in the US. In addition, maize has been at the center of the transgenic plant controversy, serving as the first food crop with released transgenic varieties. By 2008, maize will have its genome sequence released, providing the sequence of the first average-size plant genome (the four plant genomes that are now sequenced come from unusually tiny genomes) and of the most complex genome sequenced from any organism. Among plant science researchers, maize has the second largest and most productive research community, trailing only the Arabidopsis community in scale and significance. At the applied research and commercial improvement levels, maize has no peers in agriculture, and consists of thousands of contributors worthwhile. A comprehensive book on the biology of maize has not been published. The "Handbook of Maize: the Genetics and Genomics" center on the past, present and future of maize as a model for plant science research and crop improvement. The books include brief, focused chapters from the foremost maize experts and feature a succinct collection of informative images representing the maize germplasm collection.