The development of the maize seed industry and private seed companies in selected Sub-Saharan Africa countries over the past 95 years is outlined. The study provides evidence that seed industry development is an evolutionary learning-by-doing process of fitting together a set of interactive and...

Ex ante evaluation of agricultural research for development projects has become important in recent years for priority setting, ex post impact assessment and learning about generalizability to other populations and contexts. We apply farm household and random utility modeling to baseline survey...

This paper presents a historical overview of plant breeding research, variety release and seed supply of staple food grains in Zimbabwe, and assesses the impacts of the new varieties on yields using national aggregate yield data. The paper also analyses farm-level factors determining...

This paper presents a historical overview of plant breeding research, variety release and seed supply of staple food grains in Zimbabwe, and assesses the impacts of the new varieties on yields using national aggregate yield data. The paper also analyses farm-level factors determining farmers’...

Unless more effective ways can be found to deliver high-yielding seed to farmers in developing countries, the hoped-for “green revolution” in maize production will remain elusive. This comprehensive reference examines the spectrum of technical, economic, and institutional issues that will...