Innovation systems can be defined in a variety of ways: they can be national, regional, sectoral, or technological. They all involve the creation, diffusion, and use of knowledge. Systems consist of components, relationships among these, and their characteristics or attributes. The focus of this paper is on the analytical and methodological issues arising from various system concepts. There are three issues that stand out as problematic. First, what is the appropriate level of analysis for the purpose at hand?
El Silvopastoreo es un sistema de producción pecuaria en donde las leñosas perennes (árboles y/ o arbustos) interactúan con los componentes tradicionales (forrajeras herbáceas y animales) bajo un sistema de manejo integral, ha sido planteado con base en resultados investigativos, como una alternativa de producción sostenible que permite reducir el impacto ambiental de los sistemas tradicionales de producción.
The private sector dominates biotechnology research in industrialized countries, but there are major market failures in developing countries in accessing the new tools and technologies. The public sector, national and international, will have to play a major role in filling this gap. This paper provides an overview of options that countries of different sizes and capacities can employ to gain access to the research tools and technologies that they need to address issues of relevance to poor producers and consumers.
The findings of a Nigerian case study discussed in this paper indicate that the notion of wives of leisure is really not applicable to most women in Nigeria, as women have always worked. Even those in purdah engage in income generating activities within the confines of the compound. It is therefore wasteful to continue to by-pass or displace women in development. Selective mechanisation of difficult processes in agriculture could become a useful method of integrating women into, and enhancing their contributions to, development.