A combination of new and ongoing forces is driving global food prices. Rising energy prices and subsidized biofuel production, income and population growth, globalization, and urbanization are among the major forces contributing to surging demand—while on the supply side, land and water constraints, underinvestment in rural infrastructure and agricultural innovation, lack of access to inputs, and weather disruptions are impairing productivity growth and the needed production response.

Water, sanitation, and hygiene can have a profound effect on health and nutrition. A growing base of evidence on the link between sanitation, child height, and well-being has come at an opportune time, when the issue of sanitation and nutrition in developing countries has moved to the top of the post-2015 development agenda.

The studies in this book sought to understand the factors affecting rural households’ choice of income strategies and land management practices and the implications of these decisions and of policy- and program-relevant factors for agricultural production, household welfare, and land degradation. We noted at the outset that the factors influencing these decisions and outcomes are many and complex and that their effects may be very context-dependent in a region as diverse as the East African highlands. The findings in the preceding chapters amply support this hypothesis.

Governments are devolving service and infrastructure provision, regulatory authority, and decisionmaking in many developing countries. Market reforms and structural adjustment policies devolve the provision of services and infrastructure to nongovernmental organizations (NGOs), community-based organizations (CBOs), and the private sector (Farrington and Bebbington 1993; Uphoff 1993; Pender and Scherr 2002).

The second of three books in IFPRI's climate change in Africa series, East African Agriculture and Climate Change: A Comprehensive Analysis examines the food security threats facing 10 of the countries that make up east and central Africa - Burundi, Democratic Republic of Congo, Eritrea, Kenya, Madagascar, Rwanda, Sudan, Tanzania, and Uganda - and explores how climate change will increase the efforts needed to achieve sustainable food security throughout the region. East Africa's populations is expected to grow at least through mid-century. The region will also see income growth.

Institutions of collective action and systems of property rights shape how people use natural resources, and these patterns of use in turn affect the outcomes of people’s agricultural production systems. Together, mechanisms of collective action and property rights define the incentives people face for undertaking sustainable and productive management strategies, and they affect the level and distribution of benefits from natural resources.

More than 300 million Africans, about 30 percent of the total population, live more than one day away from the nearest port. Even when ports lie within a few hundred miles, typically sparse road networks, poor maintenance, and limited transportation infrastructure translate into high access costs. The larger map illustrates cost-of-travel accessibility to 63 major African ports, based on port type, size, and capacity in terms of the estimated total number of hours, both off and on the road network, required to travel from any location in Africa to the nearest port.

A large body of literature makes the argument that commercialization of agriculture has mainly negative effects on the employment, incomes, food production and consumption, health, and nutrition of the poor. In Commercialization of Agriculture, Economic Development, and Nutrition, Joachim von Braun and Eileen Kennedy find that the conclusion that commercialization of agriculture is generally bad for nutrition is flawed.

Book chapter

In this chapter we introduce the conceptual framework that underlies the case studies presented in this book and discuss hypotheses about the effects of key factors on community and household decisions concerning income strategies and land management. We also discuss the influence of such decisions on outcomes such as agricultural production, household income, and land degradation (or improvement). This chapter is adapted from Scherr et al. (1996); Pender, Place, and Ehui (1999); Pender, Scherr, and Durón (2001); and Nkonya et al. (2004).

Ethiopia remains one of the least-developed countries in the world: 50 percent of the population lives in abject poverty, and average life expectancy is only 43 years. Agriculture-the main sector of the Ethiopian economy-employs about 80 percent of the population and is dominated by small-scale, mixed crop and livestock production with very low productivity, which can be attributed to obsolete farming techniques; soil degradation caused by overgrazing and deforestation; poor complementary services, such as extension, credit, markets, and infrastructure; and frequent droughts and floods.