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In many developing countries property rights over rural land are maintained through continuous personal use instead of by land titles. We show that removing the link between land use and land rights through the issuance of ownership certificates can result in large-scale adjustments to labor and land allocations. Using the rollout of the Mexican land certification program from 1993 to 2006, we find that households obtaining certificates were subsequently 28 percent more likely to have a migrant member. We also show that even though land certification induced migration, it had little effect on cultivated area due to consolidation of farm units.

This book covers land administration and reform in Sub-Saharan Africa, and is highly relevant to all developing countries around the world. It provides simple, practical steps to turn the hugely controversial subject of \"land grabs\" into a development opportunity by improving land governance to reduce the risks of dispossessing poor landholders while ensuring mutually beneficial investors' deals. This book shows how Sub-Saharan Africa can leverage its abundant and highly valuable natural resources to eradicate poverty by improving land governance through a ten point program to scale up policy reforms and investments at a cost of USD 4.5 billion. Formidable challenges to implementation are discussed. These include high vulnerability to land grabbing and expropriation with poor compensation, as about 90 percent of rural lands in Sub-Saharan Africa are undocumented, as well as timely opportunities since high commodity prices and investor interest in large scale agriculture have increased land values and returns to investing in land administration. The book argues that success in implementation will require participation of many players including Pan-African organizations, Sub-Saharan Africa governments, the private sector, civil society and development partners. Ultimate success will depend on the political will of Sub-Saharan Africa governments to move forward with comprehensive policy reforms and on concerted support by the international development community.

Social Movements, Law and the Politics of Land Reform investigates how rural social movements are struggling for land reform against the background of ambitious but unfulfilled constitutional promises evident in much of the developing world. Taking Brazil as an example, it unpicks the complex reasons behind the remarkably consistent failures of its constitution and law enforcement mechanisms to deliver social justice. Using detailed empirical evidence and focusing upon the relationship between rural social struggles and the state, the book develops a threefold argument: first, the inescapable presence of power relations in all aspects of the production and reproduction of law; secondly their dominant impact on socio-legal outcomes; and finally the essential and positive role played by social movements in redressing those power imbalances and realising law's progressive potentialities.

The Amazon, the world's largest rain forest, is the last frontier in Brazil. The settlement of large and small farmers, squatters, miners, and loggers in this frontier during the past thirty years has given rise to violent conflicts over land as well as environmental duress. Titles, Conflict, and Land Use examines the institutional development involved in the process of land use and ownership in the Amazon and shows how this phenomenon affects the behavior of the economic actors. It explores the way in which the absence of well-defined property rights in the Amazon has led to both economic and social problems, including lost investment opportunities, high costs in protecting claims, and violence. The relationship between land reform and violence is given special attention. The book offers an important application of the New Institutional Economics by examining a rare instance where institutional change can be empirically observed. This allows the authors to study property rights as they emerge and evolve and to analyze the effects of Amazon development on the economy. In doing so they illustrate well the point that often the evolution of economic institutions will not lead to efficient outcomes. This book will be important not only to economists but also to Latin Americanists, political scientists, anthropologists, and scholars in disciplines concerned with the environment.

Major environmental functions and human needs critically depend on water. In regions of the world affected by water scarcity economic activities can be constrained by water availability, leading to competition both among sectors and between human uses and environmental needs. While the commodification of water remains a contentious political issue, the valuation of this natural resource is sometime viewed as a strategy to avoid water waste. Likewise, water markets have been invoked as a mechanism to allocate water to economically most efficient uses. The value of water, however, remains difficult to estimate because water markets and market prices exist only in few regions of the world. Despite numerous attempts at estimating the value of water in the absence of markets (i.e., the “shadow price”), a global spatially explicit assessment of the value of water in agriculture is still missing. Here we propose a data-parsimonious biophysical framework to determine the value generated by water in irrigated agriculture and highlight its global spatiotemporal patterns. We find that in much of the world the actual crop distribution does not maximize agricultural water value.

Xylella fastidiosa is the causal agent of plant diseases that cause massive economic damage. In 2013, a strain of the bacterium was, for the first time, detected in the European territory (Italy), causing the Olive Quick Decline Syndrome. We simulate future spread of the disease based on climatic-suitability modeling and radial expansion of the invaded territory. An economic model is developed to compute impact based on discounted foregone profits and losses in investment. The model projects impact for Italy, Greece, and Spain, as these countries account for around 95% of the European olive oil production. Climatic suitability modeling indicates that, depending on the suitability threshold, 95.5 to 98.9%, 99.2 to 99.8%, and 84.6 to 99.1% of the national areas of production fall into suitable territory in Italy, Greece, and Spain, respectively. For Italy, across the considered rates of radial range expansion the potential economic impact over 50 y ranges from 1.9 billion to 5.2 billion Euros for the economic worst-case scenario, in which production ceases after orchards die off. If replanting with resistant varieties is feasible, the impact ranges from 0.6 billion to 1.6 billion Euros. Depending on whether replanting is feasible, between 0.5 billion and 1.3 billion Euros can be saved over the course of 50 y if disease spread is reduced from 5.18 to 1.1 km per year. The analysis stresses the necessity to strengthen the ongoing research on cultivar resistance traits and application of phytosanitary measures, including vector control and inoculum suppression, by removing host plants.

While early attempts at land titling in Africa were often unsuccessful, factors such as new legislation, low-cost methods, and increasing demand for land have generated renewed interest. A four-period panel allows use of a pipeline and difference-indifferences approach to assess impacts of land registration in Ethiopia. We find that the program increased tenure security, land-related investment, and rental market participation and yielded benefits significantly above the cost of implementation.

We assess the effects of a major land policy change on farm size and agricultural productivity using a quantitative model and micro-level data. We study the 1988 land reform in the Philippines that imposed a ceiling on land holdings, redistributed above-ceiling lands to landless and smallholder households, and severely restricted the transferability of the redistributed farmlands. We study this reform in the context of an industry model of agriculture with a nondegenerate distribution of farm sizes featuring an occupation decision and a technology choice of farm operators. In this model, the land reform can reduce agricultural productivity not only by misallocating resources across farmers but also by distorting farmers’ occupation and technology decisions. The model, calibrated to prereform farm-level data in the Philippines, implies that on impact, the land reform reduces average farm size by 34 percent and agricultural productivity by 17 percent. The government assignment of land and the ban on its transfer are key for the magnitude of the results since a market allocation of the above-ceiling land produces about one-third of the size and productivity effects. These results emphasize the potential role of land market efficiency for misallocation and productivity in the agricultural sector.

We conduct a disaggregated empirical analysis of civil conflict at the subnational level in Africa over 1997 to 2011 using a new gridded data set. We construct an original measure of agriculture-relevant weather shocks exploiting within-year variation in weather and in crop growing season and spatial variation in crop cover. Temporal and spatial spillovers in conflict are addressed through spatial econometric techniques. Negative shocks occurring during the growing season of local crops affect conflict incidence persistently, and local conflict spills over to neighboring cells. We use our estimates to trace the dynamic response to shocks and predict how future warming may affect violence.

We study the effects of the adoption of new agricultural technologies on structural transformation. To guide empirical work, we present a simple model where the effect of agricultural productivity on industrial development depends on the factor-bias of technical change. We test the predictions of the model by studying the introduction of genetically engineered soybean seeds in Brazil, which had heterogeneous effects on agricultural productivity across areas with different soil and weather characteristics. We find that technical change in soy production was strongly labor-saving and led to industrial growth, as predicted by the model.