This paper argues that impact assessment research has not made more of a difference because the measurement of the economic impact has poor diagnostic power. In particular it fails to provide research managers with critical institutional lessons concerning ways of improving research and innovation as a process. Our contention is that the linear input-output assumptions of economic assessment need to be complemented by an analytical framework that recognises systems of reflexive, learning interactions and their location in, and relationship with, their institutional context. The innovation systems framework is proposed as an approach where institutional learning is explicit. Three case studies of recent developments in international agricultural research are presented to illustrate these points. We conclude by suggesting that the innovation systems framework has much to offer research managers wishing to monitor and learn new ways of addressing goals such as poverty alleviation. The greatest challenge however, is that such holistic learning frameworks must contend for legitimacy if they are to complement the dominant paradigm of economic assessment.

Extension activities are being pulled in many directions, and are being called on to respond more effectively to the needs of farmers to produce and to forge links with markets. In the USA, for example, State Cooperative Extension Services have a variety of purposes in urban areas and operate in cooperation with other government agencies. Thus extension services, while concentrating on production agriculture, especially via privatized and private extension-type service companies, are simultaneously broadening out to include new purposes and a new clientele. While extension's role is straightforward in contract farming and other commercial ventures, such is not necessarily the case with public sector extension. Its structure, organization and operating system may differ from country to country, even from region to region. Nonetheless, whether in the private or public sector, a major concern for extension is to operate in the context of agricultural innovation systems (AIS) so that new knowledge is applied and used. A key objective in reforming extension, as argued in this paper, is to make it a better instrument, or engine, for the promotion of innovation, the dissemination of knowledge and the facilitation of development.

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This paper examines the challenges in reforming agricultural extension in India to meet the complex and heterogeneous demands of agricultural and rural development. While extension can and should play a much wider role in engaging with these issues, its performance remains restricted to the traditional one of technology dissemination. Fresh theoretical perspectives on the nature of innovation and appropriate institutional reform are opening up new vistas for extension. But the implementation of many of these necessary changes is hampered by outmoded understanding of its role and function, lack of partnerships among the different actors, limited expertise and lack of an explicit agenda on institutional learning.

This chapter explains the difficulties encountered in developing more extensive and intimate patterns of public-private sector interaction in the Indian agricultural research system, and draws implications for reform. An innovation systems framework is used to explore this problem from a wider institutional systems perspective. Using this framework, the chapter describes factors that have shaped the relationship between the public and private sectors. Detailed case studies are then used to illustrate the limits to progress and prospects for public-private sector interaction.

While impacts of climate change on agricultural systems have been widely researched, there is still limited understanding of what agricultural practices evolves over time in response to both climatic and non-climatic drivers and how actors mobilize their resources, institutions and practices in South Asia.Through eight case studies and a survey of300 households in 15 locations in India, Nepal and Bangladesh, this paper generates empirical evidence on emerging agricultural interventions in contrasting socio-economic, geographical and agro-ecological contexts. The study shows that several farm practices emerge out in response to multiple drivers over time; some of them can be further adjusted to the challenge of climate change by planned adaptation programs. Most actors, however, have considered private risks in the short run. Although there has been some progress in streamlining climate change into strategic planning in different countries of South Asia, policy, research and extension systems lack adequate attention to wider resilience of the system. Based on this analysis, we recommend that adaptation policies should complement farmers' responses to climate change through informed research and extension systems and pro-poor government policies that improve adaptation and coordinate activities of different actors.

This paper demonstrates the way in which institutional learning has been adopted by a post-harvest technology research project in India to cope with the institutional constraints associated with various public agencies, as well as to help formulate broader lessons for institutional reform in horticultural R&D systems. The case study presents an institutional history of public and private efforts to assist farmers from the Vijaya Association of Fruit and Vegetable Growers' Cooperative Societies of Andhra Pradesh to produce and sell export quality mangoes. Problems in the relationships between stakeholders reveal the need to see technology development projects in a much more holistic light than is conventionally understood.