Using the farm as unit of analysis, diagnosis processes aimed at improving production systems are reviewed. Within a country, diagnosis should be conducted at different hierarchical levels: local (interaction between the production system and the input distribution sector, the marketing sector, possible forms of processing, and consumption characteristics); regional (appropriate selection of target site); and national (development trends and governmental policies at the macroeconomic and sectorial levels).

As the only international centre that is solely concerned with African livestock, ILCA has a responsibility to play a lead role in defining the agenda of research issues related to livestock development and environmental policy in Africa. This paper presents a framework appropriate for defining that agenda and for guiding analysis of particular research issues and gives some detail on how ILCA might approach the specific area of range management policy in the arid and semi-arid areas.

Since September 1993, ILCA and IFPRI have been engaged in a discussion about the most important, researchable, issues in the area of property rights. A concept note has been developed for collaborative research on the evolution of resource use and property institutions under risk. The starting point or framework was the Boserup, McIntire (and others) model of gradual intensification. This model has been used in documents such as the Winrock Assessment of Animal Agriculture to predict paths of future development and recommend research to facilitate that development.

The major issues in impact assessment for farmer participatory research (FPR) are analyzed. There are many potential ways in which FPR can have an impact; for example, increasing agricultural productivity, improving the management of natural resources or leading to a wider dissemination of innovations. FPR may also be more effective in reaching specific target groups, and it many reduce research costs and develop community capacity. Impact will be measured by different groups, and for different reasons, according to the circumstances.