This paper looks at the prioritization of agricultural value chains (VCs) for the allocation of R&D resources that maximize development outcomes (poverty, growth, jobs, and diets). Considering that growth in VCs affects those various outcomes differently, as expansion pathways result in the diverse use of production factors and inputs, trade-offs from linkages across sectors, and changes throughout the agri-food system, this analysis uses (i) the RIAPA dynamic computable general equilibrium model to identify which agricultural VCs, when expanded through TFP growth, provide the strongest effects on the development outcomes of interest; (ii) the perpetual inventory model (PIM) to represent the lagged effect of research through knowledge stocks of agricultural R&D investments; and (iii) information on the elasticities of VC agricultural activity TFP with respect to agricultural R&D knowledge stocks, to discuss the VC priority allocations of R&D resources in Senegal. Results indicate that no one VC (crop- or livestock-related) is the most effective at improving all development outcomes. When accounting for policy preferences that attribute relative priority weight to development objectives, results (based on a ranking scale) indicate that R&D investments for maximizing development objectives can be most effective in Senegal’s VCs for traditional export crops (growth, diets, jobs, and to some extent poverty), groundnuts (poverty, diets, and jobs), rice (poverty and jobs), poultry/eggs (diets and jobs), sorghum/millet (poverty and growth), and cattle (diets and growth). Other promising VCs with potential effects at scale if strategically targeted include vegetables (poverty, diets, and jobs), oilseeds (poverty and growth), and fruits (diets and jobs). While these results can inform strategies aimed at improving multiple development outcomes, future modeling needs to focus on deepening the standardization and integration of R&D investments costs into the framework, disentangle the relevance of different types of R&D investments sources, and bring together other factors and complementary agrifood system investment dimensions relevant to sustainable and inclusive agricultural VC growth.

This book provides a thorough introduction to and examination of agricultural value chains in Sub-Saharan Africa. First, the authors introduce the economic theory of agri-food value chains and value chain governance, focusing on domestic and regional trade in (and consumption of) food crops in a low-income country context. In addition to mainstream and heterodox thinking about value chain development, the book pays attention to political economy considerations. The book also reviews the empirical evidence on value chain development and performance in Africa. It adopts multiple lenses to examine agricultural value chains, zooming out from the micro level (e.g., relational contracting in a context of market imperfections) to the meso level (e.g., distributional implications of various value chain interventions, inclusion of specific social groups) and the macro level (underlying income, population and urbanization trends, volumes and prices, etc.).Furthermore, this book places value chain development in the context of a process the authors refer to as structural transformation 2.0, which refers to a process where production factors (labor, land and capital) move from low-productivity agriculture to high-productivity agriculture. Finally, throughout the book the authors interpret the evidence in light of three important debates: (i) how competitive are rural factor and product markets, and what does this imply for distribution and innovation? (ii) what role do foreign investment and factor proportions play in the development of agri-food value chains in Africa? (iii) what complementary government policies can help facilitate a process of agricultural value chain transformation, towards high-productive activities and enhancing the capacity of value chains to generate employment opportunities and food security for a growing population.

Value chain based approaches offer tremendous scope for market-based improvements in production, productivity, rural economy diversification, and household incomes, but are often covered by literature that is too conceptual or heavily focused on analysis. This has created a gap in the information available to planners, practitioners, and value chain participants. Furthermore, few references are available on how these approaches can be applied specifically to developing agriculture in Africa. 'Building Competitiveness in Africa s Agriculture: A Guide to Value Chain Concepts and Applications' describes practical implementation approaches and illustrates them with scores of real African agribusiness case studies. Using these examples, the 'Guide' presents a range of concepts, analytical tools, and methodologies centered on the value chain that can be used to design, implement, and evaluate agricultural and agribusiness development initiatives. It stresses principles of market focus, collaboration, information sharing, and innovation. The 'Guide' begins by examining core concepts and issues related to value chains. A brief literature review then focuses on five topics of particular relevance to African agricultural value chains. These topics address challenges faced by value chain participants and practitioners that resonate through the many cases described in the book. The core of the book presents methodological tools and approaches that blend important value chain concepts with the topics and with sound business principles. The tools and case studies have been selected for their usefulness in supporting market-driven, private-sector initiatives to improve value chains. The 'Guide' offers 13 implementation approaches, presented within the implementation cycle of a value chain program, followed by descriptions of actual cases. Roughly 60 percent of the examples are from Africa, while the rest come from Europe, Latin America, and Asia. The 'Guide' offers useful guidance to businesspeople, policy makers, representatives of farmer or trade organizations, and others who are engaged in agro-enterprise and agribusiness development. These readers will learn how to use value chain approaches in ways that can contribute to sound operational decisions, improved market linkage, and better results for enterprise and industry development.

In developing countries, where agriculture is a major economic sector, value-chain development is expected to contribute to high-level outcomes. In this paper, we aim at quantitatively assessing the value-chains which will be the most effective at fostering national and regional economic development along four dimensions: generating economic growth in the agricultural-food sector; reducing national and rural poverty; creating employment; and improving nutrition by diversifying diets. We propose an economywide systems-approach using a spatially-disaggregated dynamic computable general equilibrium model that we apply to Senegal. Simulation results indicate that fishery is the most effective value chain at generating growth in the regions with potential for fishery expansion (Thies-Diourbel, the Northern, and the Southern regions). Rice is the first value chain to reduce poverty in the Northern and Southern regions where irrigated and rainfed rice cultivation respectively dominate. Growth led by the fruits sector is the most effective at improving nutrition in all four regions where fruits are grown (Thies-Diourbel, the Northern, Central, and Southern regions).

Development largely depends on how given places participate in global economic processes.The contributions to this book address various features of the integration of sub-Saharan Africa into the world economy via value chains, so as to explain corresponding challenges and opportunities. The book deals with five issues that have not been covered adequately in scientific debates: first, policies are essential to promote value chains and increase their impact on development; second, value chains are diverse, and the variance between them has major economic and political implications; third, regional value chains appear to constitute a viable alternative to global ones (or, at least, are complementary to them), promising better developmental outcomes for the Global South; fourth, political and socio-economic factors are important considerations for a complete assessment of value chains; fifth, cities and city regions are also crucial objects of study in seeking to achieve a comprehensive assessment of value chains.

Small and medium agrifood enterprises (SMAEs) such as processors, transporters and other service providers, play an important role in achieving sustainable development objectives. For instance, they connect farmers to urban markets; make significant investments in rural areas; provide employment to vulnerable populations such as women and youth; and propel the modernization of agrifood value chains. In sub-Saharan Africa, where agriculture comprises 53 percent of total employment and 15.5 percent of gross domestic product, supporting SMAEs can have great implications for pro-poor growth and rural transformation. To support SMAEs in fulfilling their potential, the Food and Agriculture Organization of the United Nations (FAO) has been dedicating research to better understand their policy and technical needs. This publication is such output and aims to provide an assessment of the policy and institutional framework in Senegal shaping the business models of small and medium agrifood processors. This systemic appraisal of Senegal’s business enabling environment for SMAEs was cross-fertilized with an analysis of the business models of three rice millers, resulting in a related FAO technical study 'The role of small and medium agrifood enterprises in food systems transformation: the case of rice processors in Senegal'. The analyses were carried out using a multidisciplinary agrifood systems approach, which looks at policies and institutions related to procurement, operations, logistics, finance, marketing and sales, human resources, and strategic partnerships. Due to its well-articulated policy documents and the extensive research on various aspects of the business enabling environment conducted in the country, Senegal represents a compelling case to illustrate the links between policies and the activities of agrifood processors.