Overview of the seed industry in developing countries; An analytical framework; Government policies; Conclusions and priorities for future research.

Despite the potential importance of seed quality to agricultural productivity growth, many governments in sub-Saharan Africa lack the capacity to expand quality assurance systems even where there is expressed interest. This study aims to evidence the value of quality assurance systems with an analysis of efforts to produce and distribute certified seed in Nigeria. We assess the associations between quantities of certified seeds produced and spatial variations in production locations proxied by headquarter locations of seed companies producing certified seeds, on the one hand, with spatial variations in the use of certified seed, yields, and output at the farm level, on the other hand. Our analysis covers three crops that are important to food security in Nigeria: maize, rice, and cowpea. Our analysis integrates information on seed quantities produced and locations of seed companies with nationally representative panel data from a survey of farm households and spatially explicit rainfall and temperature data. We find a positive relationship between certified seed production in proximity to farm households and farm-level use of certified seeds, yields, and output, although this effect is diminishing at the margin. These diminishing marginal effects may be partly due to two factors. First, the yield gains from certified seeds tend to vary considerably within each state, suggesting that either quality issues persist in the seed supply chain or farmers are not using complementary inputs or appropriate management techniques when using quality seed. Second, it may be that as certified seed becomes more available to farmers, its use spreads from higher-return farms to lower-return farms, thereby diminishing the gains on the extensive margin. Although more rigorous assessments of causal effects and cost-effectiveness are needed to validate these findings, these results are consistent with the hypothesis that there are diminishing returns to seed quality assurance. Policymakers, regulators, and seed providers may benefit from identifying optimal, crop-specific target quantities or rates for certified seed production rather than aiming for certification of all seed produced in a market.

Markets have been found to be an increasingly important source of the seeds of crops and varieties low income farmers need to improve their livelihoods, encompassing both the formal and informal seed sector. Markets also have major impacts on agricultural biodiversity, by affecting farmers' choice of crops and varieties to grow. They are not, however, a homogenous institution, although all too frequently policies and regulations are developed as though they were. Markets vary considerably depending on the participants, on the institutions that govern how and what they exchange, and on local agricultural, economic and social conditions. Developing effective strategies to improve the way agricultural markets work, including how farmers use crop genetic resources, requires understanding of these variations. Seed Trade in Rural Markets presents a unique set of case studies from Bolivia, India, Kenya, Mali and Mexico on agricultural seed and product markets that describe three important market characteristics expected to affect farmers' access to seeds and varieties: the range of varieties on offer, the information provided about them, and relative prices. The case studies - all based around a common framework to aid comparability - also provide information on social, agricultural and economic factors which may be affecting the market availability, information, and cost of crop genetic resources, and ultimately the capacity to stimulate agricultural development Published with the Food and Agriculture Organization (FAO) of the United Nations

Who holds the power when considering environmental justice and global citizenship? The roles of individuals, governments, media, educators and policy makers are considered to provide a thought-provoking look at power relationships for environmental justice in the start of the 21st century.

One of the major challenges facing most countries in sub-Saharan Africa is the need to invest significant resources into strengthening their capacity to increase the availability of good-quality seeds of a wider range of plant varieties. This publication presents the proceedings of the Regional Technical Meeting on Seed Policy and Programmes for sub-Saharan Africa.

Contributed articles on commercial policy and trade regulation in India in light of WTO policy.